th - iraname.comiraname.com/book/proceedings/MIC2017En.pdf · Seyyed Jalil Mousavi, Mohammad Amir Siavash Haghighi, Mehdi Darabian, Seyyedeh Fatemeh Mousavi, 6 The role of knowledge

19thInternational Marine Industries Conference

Proceedings of:

11 - 14 Dec. 2017, Kish Island, Iran

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Dear distinguished guests, participants, experts, engineers, scientists and students, I would

like to welcome you to the 19th Marine Industries Conference (MIC 2017) at beautiful Kish

Island. It is an exciting time for all of maritime sectors to gather again in another event to

exchange their ideas and information as well as showing their potentials and capabilities

to all participants and attendees. I am very proud that these annual conferences and exhi-

bitions, nowadays, have been recognized widely not only by the nation but also by other

international sectors- thanks to all individuals, public sectors and private firms that made

this happen.

Iranian Association of Naval Architects and Marine Engineers (IRANAME) as a significant

key player in Iranian Maritime Industry, is very proud and delighted to be your host again

here this year. Meanwhile, on behalf of IRANAME, I would like to thank all of you for your

participation and contribution to our various programs this year.

I know many of you have travelled from quite a distance and I’d like to acknowledge our

delegates from various international countries who have made this long trip to participate

in one of the largest, most extensive Maritime conference and exhibition we have ever had.

I’d like to give you an idea of what you can expect and we hope to achieve over the next few

days. Beside paper presentations which are scheduled in two parallel sessions on today and

tomorrow, there are interesting technical workshops, panels and relevant meetings in order

to fulfill your numerous needs and tastes. In addition, due to successful achievement of the

special offshore oil and gas technical panel last year, this technical panel has been organized

again this year with interesting agenda. I would like to thank Dr. Gh. Manouchehri, the

Deputy on Development and Engineering of National Iranian Oil Company, for accepting

the responsibility to organize and lead this important panel this year. For more details,

please refer to the conference program or ask our administrative staff at the reception.

To all of you, thank you for being here, welcome, and enjoy the conference as well as relax-

ing in beautiful Kish Island.

Dr. Said MazaheriConference Chairman

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Today, indispensable effect of SEA in civilization, cultural and economical enrichment and merchant of nations is fully endorsed. SEA INDUSTRY is interpreted as an essential tool for a real and stable development of a country. The latter is very widespread, but includes though not limited to a major field of Marine applications, such as the maritime and off-shore structures, physical and engineering studies and challenges related to the marine en-vironment, such as Oil & Gas Upstream, renewable energies, shipping and naval industries.

The Nineteen’s Conference (2017) includes 6 invited plenary lectures on the Oil & Gas theme, 50 selected oral presentations along with 100 posters that are distributed among 10 thematic sessions that covered many of above said relevant topics of marine engineering. This proceeding contains 340 accepted papers from near to 450 manuscripts submitted to Conference.The papers were selected and graded via good contributions from recognized experts and university faculty members that collaborated in the organization of the thematic sessions of the Conference. This assures the acceptable quality and or applicability of the papers included in this book. Hereby, I appreciate efforts by all colleagues and relevant companies in the vast and exciting Sea industry that made this conference with its international exhibition, various work shops, Oral and poster presentations and mutual meetings to exchange and share new findings and move forward.

Sincerely,M R Bahaari

Professor, University of TehranEditor, Scientific Committee

19th Marine Industries Conference

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Conference Chairman: Dr. Said Mazaheri Head of Scientific Committee: Dr. Mohammadreza Bahaari

The organizer of this annual conference is the Iranian Association of Naval Architecture & Marine Engineering (IRANAME) established in August 1998 in Tehran, Iran, which the major of Iran marine industries executives, marine universities, professors, students and ship owners are in touch with.

Conference Organization

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Head of Scientific Committee: Dr. Mohammadreza Bahaari

Mr. Bitaraf Director General of Engineering, Research and Technology of the Ministry of Petroleum

Dr. VataniDeputy of Technological Development of Vice-Presidency for Science and Technology

Dr. ManochehriDeputy of Development National Iranian Oil Company

Dr. FarshchiDeputy the Marine Environment of the Department of Environment

Dr. MazaheriFaculty Member of Iranian National Institute for Oceanography and Atmospheric Science

Dr. Sha’banikia Technical and Executive Deputy of Renewable Energy Organization of Iran

Dr. Hasanzadeh Director of the Center for Study and Strategic Studies of Port & Maritime Organization

Dr. Hajizadeh Zaker Director of the Iranian National Institute for Oceanography and Atmospheric Science -Faculty Member of University of Tehran

Dr. GolshaniBehin Tarh Apadana Company

Mr. SeifollahiParsam Gostar Company

Dr. KatozianDirector of the Research Institute of Petroleum Industry

Dr. MortazaviDirector of HSE of the Ministry of Petroleum-Faculty Member of Tarbiar Modares University

Mr. YousefiManaging Director of Pars Special Economic Energy Zone

Mr. BovardManaging Director of Iranian Offshore Oil Company

Mr. MeshkinfamManaging Director of Pars Oil & Gas Company Ir

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Academic Committee

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Mr. DehghaniManaging Director of Iran Marine Industrial Company (SADRA)

Dr. DaghighPars Oil and Gas Company

Dr. KasaeyanManaging Director of the Rosemond Company-Faculty Member of Islamic Azad University

Dr. HashemiDirector of The Petroleum University of Technology

Dr. BavarsadFaculty Member of Persian Gulf University

Dr. SafaieAdvisor to Ports and Maritime Organization

Dr. SaffarzadehFaculty Member of Tarbiar Modares University

Dr. KamranzadFaculty Member of Iranian National Institute for Oceanography and Atmospheric Science

Dr. KhedmatiFaculty Member of Amirkabir University of Technology

Dr. GhasemiFaculty Member of Amirkabir University of Technology

Dr. KetabdariFaculty Member of Amirkabir University of Technology

Dr. ShafieefarFaculty Member of Tarbiar Modares University

Dr. AghakouchakFaculty Member of Tarbiar Modares University

Dr. JavadiFaculty Member of University of Tehran

Dr. SadrinasabFaculty Member of University of Tehran

Dr. SeifFaculty Member of Sharif University of Technology V

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Dr. TabeshpourFaculty Member of Sharif University of Technology

Dr. ZeinoddiniFaculty Member of K.N. Toosi University of Technology

Dr. JavidChairman of School of Marine Science and Technology of Islamic Azad University

Dr. Javaherdashti Senior Advisor of Institute of Shakhes Pazhoh

Dr. JavadiFaculty Member of University of Tehran

Dr. AsgarianFaculty Member of K.N. Toosi University of Technology

Dr. BadieiFaculty Member of University of Tehran

Dr. FakherFaculty Member of University of Tehran

Dr. Vali ArabiDeputy of Delta Offshore Company

Mr. BanaeiManaging Director of Delta Offshore Company

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Contents

Marine economic and management

Identifying and Prioritising Effective Factors on Imam Khomeini Port Complex Marketing using Analytical Hierarchy Process (AHP)Abotaleb Grailou, Shahnavaz Ayoubi, Bahram Shomalipour, Milad Eidani 1

Recognition of Marine Tourism Barriers and Proposing Developmental Solutions in Iran Elham Hasanpour, Hamid Savadkouhi 2

Marine Science Incubators ers are a pivotal source of sustainable developmentAlireza Alipour 3

Investigate Effectiveness of Privatization on Chabahar PortMahmood balooch, Habib allah dahani 4

Identify and Prior of Effective Factors Advertisement of Imam Khomini Port’s Marketing with AHP Mahmoud Hoseinzadeh, Shahnavaz Ayoubi Ayoublu, Ali Amiri, Soroush Khakipour, Heydar Zare 5

Identifying effective components in strategy development and designing an organizational performance management model (Case study: Khorramshahr Port and Marine Administration) Seyyed Jalil Mousavi, Mohammad Amir Siavash Haghighi, Mehdi Darabian, Seyyedeh Fatemeh Mousavi, 6

The role of knowledge management in ports (case study: Imam Khomeini port complex) Abutaleb Grailou, Shahnavaz Ayoubi Ayoublo, Bahram Shomalipor, Milad Eidani 7

Evaluate Transit Position of Imam Khomini Port by SWOT-AHP ModelMahmoud Hoseinzadeh 8

Strategic Analyzing of Loading and discharging Operation of Bulk Cargo in Imam Khomini Port by SWOTMahmoud Hoseinzadeh, Aboutaleb Gerailu, Heydar zare, Mostafa Shahbazi 9

Investigate Effectiveness of Privatization on Performance of Port Affaires’ of Imam Komeini Port ComplexSeyyedeh Fateme Mousavi Nezhad 10

Analysis of Alternatives for Battery in Power Supply System Plan of a Fast Craft Using Fuzzy Analytic Hierarchy ProcessBehrang Sakhaee, Mohammad Esmaily, Davood Fanaei Sheykholeslami 11

Feasibility of site selection and stabilishing the dry port near in the vicinity of city Ahram in order to eliminate the Bushehr city port problemsHossein Mirzaee, Behrouz Omarai , Bahram Shomalipour 12

A market research on marine outboard motorsAli A. Pashaee, Masoud Nazari 13

Provide an Energy Management Pattern at Nadim Shipbuilding Corporation in the Persian GulfBoghrat Jahandari, Nahal Tahmasebi 14 VII

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e Review of Information Technology Impacts on Improvement of Bushehr Port Organiza-

tion’ performanceBehtash Shahabi, Behrouz Omaraee 15

The Effect of Organizational Intelligence and Spiritual Intelligence on Organizational Learning (Case Study of Marine Science, University of Imam Khomeini (RA) Nowshahr)Abutaleb Motallebi Varkani, Ali Alimohamadpour 16

Study and Assessment of Join Bushehr Port to Railroad and its Impact on Economic Position of Bushehr ProvunceGholamhossein Gharibi, Behrooz Omaraee, Ahmad Talebizadeh 17

Investigating the Role of Sea and Port Components in Resistance EconomicsIran Baraee 18

Reviewing and Prioritising Requirements of Passive Defense in the Line of Development Makran Coast (Case Study of Shahid Beheshi Port of Chabahar) Mohammad Hossein Yarahmadzehi, Ali Kamali, Milad Eidani 19

Pathology Barriers to Implementing and Implementing Strategic Decisions in Marine Organizations and Prioritizing Solutions to It by Using the Analytical Hierarchy ProcessEhsan taghipour, Abutaleb Motalebi Varkani, Ali Alimohamadpur 20

Offshore oil and gas industry

Reliability Assessment of Offshore Pipelines Against VIV FatigueMohammad Daghigh, Mohammad Mahdi Shabani, Abbas Etemadian 21

Optimizing Of Globe Valve Based on Hydrodynamic Numerical Model in Different Situations Mohsen Faghihi fard, Amir Ramtinpoua, Arman adamian, 22

Seafaring and marine transportation

Estimation of Competitiveness of Container Terminals in Iran Using Multi-Criteria Deci-sion Making MethodsHamid Jafari, Hassan Jafari, Mahmoud Ghiasi, Mesbah Saybani 23

Energy, Exergy, Environmental and Economic (4E) Analysis of Using Hybrid Compres-sion-Absorption Refrigeration System on a Merchant Ship Sajjad Jalali, Seyed Mohammad Hosein Sharifi, Reza Salehi, Majid Eshagh Nimvari 24

Detection and classification types of ships by using image processing new algorithms Iman Golchin Chafi, Asghar Eskandari Chechaglou, Mahdi Hariri 25

Risk assessment for berthing and unberthing operations at kharg island terminal Gholaeza Jafar Ganji, Seyed Bakhtiyar Ghasemi Fard 26

Review strategies to increase transit capacity of the Bushehr portHasan Daryanavardi, Ahmad Talebizadeh, Gholaeza Delbar 27

Vorticity changes due to atmospheric and marine in the Caspian Sea basinMohammad Malekilonbar, Dariosh Mansoury, Akbar Rashidi Ebrahimhesari 28

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Review of effective factors on success of OPRC Convention against Oil Pollution in Iranain SeaportsRamin Rajaei 29

The Effect of The Propeller Geometry on The Ships Fuel Oil Consumption Ali Montaser Kouhsari, Hassan Ghassemi, Hamid Alirezaloo 30

Identify the risk assessment of the ship to ship operation at kharg oil terminal and providing appropriate solutionsMehrdad Behrouzifar, Madjid Mousavi, Mohsen Vaezzadeh 31

Air conditioner unit designing and its optimization in a vessel using the wasted energy of engines cooling water Mohammaeza Akef, Mohamad Mehdi Layeghnejad 32

Surface-piercing propeller Model Testing in the Free-surface Water Tunnel of babol Noshirvani University of Technology Mohioddin Siavoshian, Rouzbeh Shafaghat, Seyyed Mostafa seyyedi 33

Shipping Business and its Players Relation in FutureReza Razavi Sayad, Marzieh Shahrezaei 34

Rules and standards

Role of Training in Improving the Performance of Port Logistics Staff Gholam Reza Emad, Negar Alimohammadi, Milad Eidani 35

The Role of the Iranian Ports in the Improvement of the Ballast Water Management Pro-gram Mostafa Zarenejad Ashkezari, Farshad Haeri, Abbas Zarenejad Ashkezari 36

Study of the Effectiveness of Trainings for Port Logistics Workers in Improving the Safety Level of Ports Gholam Reza Emad, Negar Alimohammadi 37

The Investigation of Maritime P&I Insurance Law Exclusions (Cargo Insurance) Mokhtar Moradi, Niloofar Malekifar 38

Health, safety, and environment in marine industry

Studying And Identifying Of Adverse Stability Effect Of Imported Japanese Vessels And It’s RecommendationsHojjat Khosravi 39

Assessment and management of environmental consequences and safety of possible fire in roll-ing industries as a supplier of marine industriesReza Karimzadeh, Shabab Jahanbin 40

Bio-fouling organisms and their effects on marine ecosystemsMohammad Gorgij Jaski, Kiomars Roohani 41

Safety and Risk Analysis in Human Hazards for a Coastal Missile Launcher System Using Fuzzy Fault Tree AnalysisBehrang sakhaee, Mohammad Esmaily, Mahdi Ardeshiri 42 IX

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e Investigation, evaluation and updating of specified courses for tug boat’s commanders and

their effect on oil terminal safety enhancementMohsen Ghorbani, Behrouz Omarai, Bahram Shomalipour 43

Identifying and Studying the Effects of Biofouling on Concrete Docks in Khorramshahr Port Mahdieh Boshagh, Mohammadali Salari Aliabadi , Babak Doustshenas, Ahmad Savari, Ma-soumeh Jahanpanah 44

Declare SOS at Sea by Chaff Fibers Mohammadomid Kankash 45

Identification and management of technical mechanisms in implementing the environmen-tal component of the sixth development program in the industryShabab Jahanbin, Hoseyn Amiri 46

Harmful Algae Blooms Pollution and their effects on marine Ecosystems Kiomars Roohani, Eisa Abdolalian, Hojjat Fourooghifard, Maryam MoezzMohammaeza Zahedi, Mohammad Sedigh Mortazavi 47

Heavy metals (Cd, Cu,Zn, Pb and Hg) monitoring in the green sea turtle (Chelonia mydas) egg from the northern coast of Oman Sea Mahmood Sinaei, Mohammad Talebi Matin, Mohammaeza Alimoradi 48

Investigation on Mercury pollution in seawater, Plankton and pony fish (Leiognathus bindus) of Mahshahr creeksAlireza Safahieh, Eshagh Hashemi, Mohammadali Salari Aliabadi, Kamal Ghanemi 49

Assessment Methods of Overall Readiness of Measures for Reduction of Green House Gas Emissions of ShipsPouyan Saeidi Moghaddam, Ean Moradpour Tayebi 50

Upcoming Environmental Regulations for Shipping IndustryReza Razavi Sayad, Marzieh Shahrezaei 51

Identification and evaluation of the most effective strategic component of HSE culture in industriesHoseyn Afraie, S.amin Jazayeri, Shabab Jahanbin 52

Routing of Systems with dust in Province HormozganMarziyeh Sisipoor, Saeid Ranjbar 53

Review and identify factors contributing to accidents in the maritime vessels with GT ≥500 engaged in international and unlimited travelsBehzad Mohmedi, Behrouz Omarai, Majid Mousavi 54

The effect of anti-folding coatings on biofinging phenomenon and their propertiesSara Jamshidizadeh, Narges Aollahi biuki 55

Enter marine Invasive Species into the Persian Gulf identify them in Biofolding commu-nitiesSeyyedeh Zahra Seyyedi, Jalal Mohammadi Baghmolaei, Narges Alipour Estahbanati, Ali Ebra-himzadeh 56

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Oceanographic and meteorological Conditions

Performance Evaluation of SWAN Model in Wind Wave Modeling of the North of Persian Gulf using CCMP wind data (Case Study: Farur Island)Hamid Taheri, Mohammad Hossein Kazeminezhad, Abbas Yeganeh-Bakhtiary 57

Interacting modeling of two submarine intelligent robots for exploring the oceans and analyzing the closest optimal distance In order to support each other Mehdi Farzaneh, Mahmoud Rostami 58

Sea level variability analysis in the northwest Indian Ocean Nasrin Eshghi, Amirhossein Barzandeh, Fahimeh Hosseiniballam, Esmaeyl Hassanzadeh 59

Inverted Barometer Effect on the Sea Level Fluctuations of Arabian SeaAmirhossein Barzandeh, Nasrin Eshghi, Fahimieh Hosseinibalam, Smaeyl Hassanzadeh 60

Reproducing Tidal Dynamics and Energetics in Chabahar Bay Considering Hydrodynamic Classification of Bottom Roughness Akbar Rashidi Ebrahim Hesari, Hassan Rabeie, Vashid Cheshmsiyahi 61

Numerical Study on added resistance of KCS in different sea statesAli Maleki, Hossein Janbazi, Ali Ahmadi, Ebrahim Alizadeh 62

Study of Numerical Model salinity prediction in northern part of the Persian GulfS. Ali Rokni 63

Real-time prediction of Water Level Fluctuation Using Adaptive Neuro-Fuzzy Inference System (ANFIS) in the Caspian Sea Masoud Dehbashi, Seyed Ali Azarmsa, Mehdi Vafakhah 64

The Wind-Wave Climate of the Makran Coastlines (B: appraising of Wave Watch III results)Mahdi shafieefar, Mohammad Bagheri, Mohammaeza Alahyar, Mohammadhosein Nemati, Ahmad Rezaee Mazyak, Mohammaeza Khosravi 65

Tropical cyclone impacts on the pattern of ocean currents in Makran coastal region, Case study: Tropical Cyclone AshobaaAli Ghasemi, Mohamad Bagheri, Mohamad Hosein Nemati, Mehdi Shafieefar, Ahmad Rezaei Mazyak 66

Investigation of Sediment Transport Process at Lengeh Port By CERC ModelKaan lari, Mohammadtaghi Sadatipour, Mostafa Mamaghani 67

Assessment of the distribution of heavy metals (nickel and vanadium) in the southeastern ports of the Caspian Sea Mehrnaz Baniamam, Kazem darvish Bastami, Ali sheykhbahaei 68

Ship design and construction

Investigation of side hull on roll of trimaran shipAli Maleki, Ghader Mirzaei, Ali Ahmadi3, Amin Mohammadi, Ebrahim Alizadeh 69

Simulation of Merchant Ship Maneuvering by MMG MethodMohammaeza Javanmardi, Mohammaeza Fathi Kazerooni, Mohammad Saeed Seif, Mehdy Kebriaee 70 XI

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Propulsion performance of spanwise flexible wing using unsteady panel methodSaeed Najafi, 71

Effect of Cavitating-bubble Generators on the Dynamics of Unsteady Cloud CavitationEbrahim Kadivar, Khodayar Javadi 72

Fluid structural interaction analysis of the water entry phenomenon in two-dimensional cross section of twin-hull ship in regular diagonal waves Mobin Masoumi, Mahdi Tousefifard, Abbas Ramiar 73

Fuzzy Modeling Centre of Buoyancy Modification and Optimization of Seakeeping Func-tions Using Genetic AlgorithmMohsen Khosravi, Pezhman Mazaheri, Hasan Ghasemi 74

The formation of a surface vessel bulbous bow by using a flexible forming methodGhaum Noormohamadi, Majid Elyasi, Mohammad Javad Mirnia 75

Numerical simulation of side forces acting on double-stepped planing hull at asymmetric condition Saeid Panahi, Parviz Ghadimi 76

Modeling of Catamaran vessel by Hydro-Elastic Method Ibrahim Soleimani, Mohammad Saeed Seif, Mohammad Reza Tabeshpour 77

Designing, numerical simulation and dynamic analizing of modern semi-SWATH two body Karim Akbari Vakilabadi, Hossein Bardide, Gholaeza Omidirad 78

Review of structural integrity Monitoring Approaches: from Traditional NDE to In-situ Structural Health Monitoring Abdollah Rahmani 79

Achieving suitable form of trimaran surface vessel side hulls to improving of dynamic Ali Maleki, Amin Mohamadi, Ghader Mirzaee, Ebrahim Alizade 80

Design and Simulation of an Improved Three-Phase Multilevel Inverter for use in Electri-cal Propulsion Vessels Mohammad Afiyatlou, Seyed Hossein Hosseini, Mehran Sabahi 81

Corrosion behavior of aluminum vessels in the presence of silane and cathodic protectionKarim akbari Vakilabadi, abbas Hasanabadi 82

Determining The Service Speed of The Ship in The Real Sea Condition Hamid Alirezaloo, Azadeh Chamkoori, Ali Montaserkouhsari, Hassan Ghassemi 83

The Influence of Friction Stir Processing on Corrosion Behavior of CB7-Cu Stainless Steel Used in SPP propeller in Sea Water Mahdi Mirzaiee, Hossein Olia , Abdoulmajid Eslami, Fakhreddin Ashrafizadeh 84

Numerical design of a muffler, in order to reduce OM457LA diesel engine exhaust noiseAliahmad Barati, Hassan Habibi Moghaddam 85

Hydrodynamic Optimization of Hull Ship Form Using Dynamic Fluid Calculations (CFD) Mohsen Khosravi Babadi, Pezhman Mazaheri, Abbas Reihani, Hasan Ghasemi 86

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A Study on Thrusters' Failure Effects on Open-loop and Close-loop Behaviors of Remotely Operated Vehicles (ROVs)Mojtaba Afshar, Mehdi Louipour 87

Dynamic behavior of Reinforcement plate under underwater explosion load by numerical method Ahmad Rahbar Ranji, Sajad Taghipour 88

Optimal operation of the integrated floating power system with interruptible loadMajid Sadeghi Ardestani, Seyyedmustafa Armaghan 89

Multi-objective optimization hybrid model of Suctioning function using parametric modeling of Cruise Hull Forms Mohsen Khosravi, Pezhman Mazaheri, Hasan Ghasemi 90

Investigating the use of alternative fuel in the marine gas turbine and its effect on pollution Mohammad Javad Rostamani, Kaan Arshtabar, 91

A sample Design of corrugated bulkhead in aluminum craft and comparison it with a plain bulkheadFarid Habashi 92

Numerical and Field Test Investigation of Static Hydrodynamic Coefficient of Autonomous Underwater Vehicle near Free Surface Mustafa zarrinilarimi, Ebrahim Alizadeh, Javad Babaei, 93

Sensitivity Analysis of Cross-Deck Plate of a Trimaran Under Biaxial Compression Loads Esmail Sadeghian, , 94

Study of RCS Reduction methods based on hull form in stealth surface ships and its implemen-tation on a corvette class warship mehran Taslimi, Rouhollah H. Goudarzi, Ali Maleki, Ebrahim Alizadeh 95

Voltage and frequency control with harmonic correction in the shipboard Integrated Power System Majid Sadeghi Ardestani, Seyyedmustafa Armaghan 96

Numerical simulation of steady manueovers of an underwater vehicle for calculating pertinent hydrodynamic forces Amin Ashtari, Yasin Yalame Aliabadi 97

Structural rellability applications in design and maintenance planning of ships subject to corro-sion Mohsen Sadeghian Kerdabadi, Mehdi Najafi, Ahmad Izadi 98

Fair the body of the ship with Teaching-Learning-Based Optimization (TLBO) algorithmAli Maleki, Hamid Amiri Ara, Hossein Janbazi, Ebrahim Alizadeh 99

Modification of porpoising and slamming Behavior of Two-Stepped high speed planning vessel by Experimental methodAbdorrahim Keshtkar , S. Javad Hashemi, Abass Dashtimanesh 100

An efficient CFD procedure for calculating hydrodynamic linear damping coefficients of under-water vehicles Javad Amini Forooshani, Mohammad Gandomkar 101

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e Electromagnetic transients Analysis in Shore to Ship Power Supply System

Mohammad Mehdi Hosseini, Beytollah Payvand, Iraj Hosseini, Mansour ehsanipour 102

Development a conceptual model to floating hotelHosein Javanmardi 103

Overview of Catamaran vessels Structural Analysis Methods with experimental and numerical Approach Ibrahim Soleimani, Mohammad Saeed Seif, Mohammad Reza Mohammad Reza 104

Investigation Effect of rake angles on a B-Wageningen Propeller performance in open water conditionAli Maleki, Jafar Nezhad Rajabali, Rohallah Godarzi, Ali Ahmadi, Saeed Karammi, Ebrahim Alizadeh 105

Investigating the Effect of Cross-section Geometry on Pressure Distribution and accelera-tion planning vesselS. Mojtaba alavi jam, Amin Najafi, S. Abolfazl Hashemi, 106

Parametric study of incident angle and wavelength effect on ship added resistance in regular waveShahrzad Nikbakht, Ahmad Hajivand, Mostafa Jafarzadeh Khatibani 107

Study of the Model Scale Effect on the Resistance Model Tests of Planing Hulls Mohammaeza Fathi Kazerooni, Mohammad Saeed Seif 108

Comparison of Dynamic Performance of Harth vessel with Mono-Hull ship and Catama-ran in Sea Waves Ibrahim Soleimani, Mohammad Reza Tabeshpour, Mohammad Saeed Seif 109

Model Reference Adaptive Control of a surface vehicle based on integral line of sight in the presence of disturbances and uncertaintiesMostafa Faramin, Rouhollah Hadipour Goudarzi, Ebrahim Alizadeh 110

Investigation the Effects of Idle Conditions on the Outboard Engines FailuresHossein Nasri, Mahmood Bari, Hojjat Shabgard 111

Dynamic behavior of plate under underwater explosion load by numerical method Ahmad Rahbar Ranji, Sajad Taghipour 112

Presentation of optimization model for General allocation of military vessels using genetic algorithm Karim Akbari Vakilabadi, Mohsen Rahmani, Hossien Khanzadi, Vahid Heidari 113

Investigating the effects of airborne dust and dust particles on the electronic components of marine vessels and the introduction of systems required for IP testsAli Rezvanifar 114

Effect of electrodeposition coating parameters on wettability behavior of tin oxide surface, experimental design and discussion Seyyed Mohamad Sadati Tilebon 115

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Experimental research about friction and wear of antifriction materials for port’s/coastal and maritime machinery or equipment and analysis of parametric oscillations of ships shafting with new composite stern-tube bearingsGrebe E. , Loshadkin D.V. , Kushner G.A. , Haljavkin A.A. , Dudanov A.A. 116

Coastal and offshore facilities

Investigation Effect of Pitting Corrosion on Oil and Gas Pipeline Collapse Using Theory of Probability of FailureAbdolrahim Taheri, Mohammad Mahdi Shabani, Abbas Etemadian 117

Determine the Optimal Level of Water Harvesting at the Jengin Dam Using Intelligent Models Hamid Rezaian Asl, Abass Raisi Makyani, Somayeh Angebini 118

Reliability Analysis of TLP Tendon under Extreme Tension in both Intact and Damaged Condi-tions. Mohammad Reza Tabeshpour, Miss Negin Nazari, . Mohammad Reza Mahmoudi 119

Determination of Residual Strength of Composite Over-wrapped Pressure Vessel Abdulreza Kabiri, Mohamad Khorashad, Mohamaeza Zarei 120

Investigation on the Effect of Pile Scouring on the Structural Behavior of a Recently-Built Fixed Jacket Platform Ghafour Emamverdizadeh beyg, Abdolrahim Taheri 121

Study of the storm on the Caspian SeaNegin Hatamibavarsad, Daroush Mansoury, Mohammadreza Khalilabadi 122

Investigation of local scour below offshore pipeline under steady current using Flow 3D numeri-cal model Ra'of Sobhani, Taghi Omid Naeeni 123

Structural strength Analysis of Super-Cavitation projectileOblique Water EntryJalal Mohammadi, Sajad Taghipour 124

The effect of mechanical properties of mooring systems on the dynamic response of the semi-submersible platformS. Mohammad Hossein Sharifi, Masoud Bolfakeh, Ahmad Mirza Mohammad Ghazvini 125

Application of differential quadrature method (DQM) in buckling analysis of marine composite sandwich structures Ali Maleki, Ali Ahmadi, Ebrahim Alizadeh 126

Damage fatigue in riser fixe platforms According to regulation API Case Study Region pars SouthHamid Anbarestani 127

Investigation of Hydraulic Stability of DezhPod Armour UnitAbbas MousaviBehnam, Aghil Hajmomeni 128

Failure Probability Based Analysis of Dropped Object on Submarine Pipelines Sina Taghizadeh Edmollaii, Pedram Edalat 129

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Single Point Mooring (SPM) System Analysis under Wave and Current Environmental Forces Behrouz Eghbali, Mohammad Daghigh, Younes Daghigh, Farhood Azarsina 130

Evaluation of Environmental Load Factor for Jacket Platform in the Persian Gulf using Reliability AnalysisNaser Shabakhty, Mohammad Saleh Akrami, . Farhod Azar Sina 131

Investigation of launching of a truss spar platform by a launch barge under wave with zero degree angle Mojtaba Khalifehie, Keyvan Sadeghi 132

An overview of Frictional Stir welding in offshore structuresGelare Fereydoni, Ahmad Rahbar Ranji, Eslam Ranjbar Nodeh 133

The importance of monitoring the health of offshore fixed platformsMohammadamin Adibipoor, Arno Petrosian, Khaled Pourali, Saba Dehghan, Marzieh Ali Akbari Karimi Sheikh Abadi, Manouchehr Fadavie Ardestani 134

Study on transient and stationary response of jack-up platforms Saghy Saeidtehrani، Behrouz Asgarian, Mohammad Daghigh, Fereydoon Kiaei 135

Optimization and automation of slipway marine repairs (Case Study: slipway of Shahid Rajaee Port)Hamed Asadi, Mahboobeh Asadi 136

Marine renewable energy and new technologies

Large-eddy simulation of flow around a sphere: Comparing cavitating and non-cavitating conditionsMohammadreza Pendar, Ehsan Roohi 137

Effect of convergent duct on performance of Darrieus vertical hydroturbine Hossein Bardide, Mofid Gorji Bandpay 138

Direct numerical simulation of wall-normal rotating turbulent channel flow drag-reduced by hydrophobic coating Hamid Jahankohan, Amin Moosaie 139

Design and Evaluation of Monopile as Offshore Wind Turbine Substructure in The Persian Gulf Parisa Ghahari, Mohammad Reza Bahaari 140

Selecting optimum location for co-located wind and current renewable marine energy farmsMohammad Hosein Aghvami, Mohammad Raie 141

Experimental study on the performance of a fixed Oscillating Water ColumnHossein Yazdi, Rouzbeh Shafaghat, Rezvan Alamian 142

A Study on Applying Underwater Acoustic Wireless Sensor Networks in Oersian Gulf Reza Javidan, Hamideh Rafie 143

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The investigation of using flow amplifier system and its performance evaluation for underwater propulsion Mohammad Gandomkar, Javad Amini Foroushani 144

A Comparative Study for Selection of Suitable Substructure for an Offshore Wind Turbine Parisa Ghahari, Mohammad Reza Bahaari 145

Numerical simulation of tidal turbine using MRF modelHamid Kazemi Moghadam, Rouzbeh Shafaghat, Rezvan Alamian, Ali Asemi, Seyed Mohamad Taheri, Hoseyn Akhoundpour Amiri 146

Introduce PowershipsSajjad Hajizadeh, Mohammad Mehrpouya 147

Optimum design of polymer fuel cell for use in submarine Hamed Shahri, Mohsen Hosseini 148

Study on increasing the efficiency of heat exchangers in ships by nano-fluidReza Balali Dehkordi, Abass Asaoz, Mohamadamin Dshtegoli 149

A Comparative Study and Identification of New Technologies Used in Offshore EnginesHojjat Shabgard, Hamed Soleimani, Masoud Nazari 150

Technical and economical feasibility study of offshore wind turbine in Iran Amirmohammad Fathi, Roya Shadmani, Abolghsem Sharayei 151

CFD simulation of Resistance Reduction for a Multipurpose Amphibious Vehicle Using Air Cushion EffectAdi Maimun، Mehdi Nakisa، Fatemeh Behrouzi 152

Human resources

Investigating the status of seafarers' problems in non-convension vessels Iran Baraee Mehdi Farahani, Haysam Amerian 153

Investigating the Effective Components in Increasing the Level of Seafarer Training in Non-Can-ning Bunkers in Khorramshahr PortMojgan Ghobadi, Haysam Amerian, Iran Baraee 154

XVII

1 Planning and policy making Marine projects Management Financing methods and procurement engineering The post sanction and marine marketing Investment in marine industry Marine tourism and ecotourism Sea and economy

Marine economic and management1 Planning and policy making Marine projects Management Financing methods and procurement engineering The post sanction and marine marketing Investment in marine industry Marine tourism and ecotourism Sea and economy

Marine economic and management

Abstract Book of 19th Marine Industries Conference 11-14 Dec. 2017 – Kish Island, Iran

Iranian Association of Naval Architecture and Marine Engineering

1 | P a g e

Identifying and Prioritising Effective Factors on

Imam Khomeini Port Complex Marketing using

Analytical Hierarchy Process (AHP)

Abotaleb Grailou1, Shahnavaz Ayoubi2, Bahram Shomalipour3, Milad Eidani4

1MSc, Industrial Engineering, Imam khomeini port complex; [email protected]

2MSc, Maritime Transportation, Imam khomeini port complex;

[email protected]

3MSc, Maritime Transportation, Imam khomeini port

complex;[email protected]

4MSc, Port and Shipping Management, Imam khomeini port complex;

[email protected]

Abstract

Ports always have a vital role in international trading and commodity

transportation. Therefore the need to formulate and implement appropriate

strategic planning with considering their internal and external environment

can extend and facilitate good services to the port customer. If in the

strategic marketing planning in ports, goals determine to attract more

customers, cause the economic growth of the port and the region.This

research identified and prioritized affective factors on Imam Khomeini

port complex marketing using analytical hierarchy process (AHP) and was

carried out applying a descriptive survey method. The research target

population was assumed unlimited and the number of sample based on

Cochran formula (after an initial test (Pretest)) was found to be 96. Expert

questionnaires were used as the main instrument for data collection and

measurement of variables in this research. Expert Choice 11 software has

been used to analysis data.According to the results of data analysis the

factors of infrastructure and superstructure, economic, political and social

conditions, hinterland, geographical location, rules and regulations,

competitors and manpower respectively effecting on Imam Khomeini port

complex marketing.

Keywords: Prioritising ،Marketing, Imam Khomeini port complex,

Analytical Hierarchy Process (AHP)

Marine Industries Conference th9Abstract Book of 1 Iran d, Kish Islan –14 Dec. 2017 -11


2 | P a g e

Recognition of Marine Tourism Barriers and

Proposing Developmental Solutions in Iran

Elham Hasanpour1, Hamid Savadkouhi2 1M.Sc. in Agriculture Engineering, Guilan University, (Commercial Expert of KGC

Co.); [email protected]

2M.B.A, Iran University of Science and Technology, (Managing Director of KGC Co.);

[email protected]

Abstract

Marine tourism is one of the largest revenue generating industries in the

world and its useful role in the global economy development is obvious to

everyone. Iran is a showcase of beautiful natural resources that existence

of two seas form two sides gives a unique feature to it but our contribution

in this industry is negligible because of numerous injuries and obstacles

and practical solutions must be proposed to develop this industry. In this

paper, which have been written in descriptive-analytical way and based on

researches done by tourism and economic experts of Iran and the progress

made in the developed countries, refers to Iran potentials, damages,

challenges and developmental solutions of marine tourism and proposes

awareness of cultural and social factors, organizing marine and coastal

tourism workgroups, preparation new rules and clarification them,

recognizing potentials and informing, improving infrastructure, inviting

the private sector for cooperating, providing facilities in different sectors

and ... as solutions that they can be exploited to open up a new window to

the sea and take step in the regard of national production and resistance

economy with importing new technologies.

Keywords: Marine Tourism, Global Economy, Development, Industry,

Infrastructure

mailto:[email protected]




3 | P a g e

Marine Science Incubators Ers Are A Pivotal

Source Of Sustainable Development

Alireza Alipour Assistant Professor of Imam Khomeini Naval Sciences University, Noshahr

Abstract

Incubator as one of the socio-economic institutions work to help the

commercialization of their new products and technologies by supporting

the growth and development of emerging companies by improving the

opportunities of raising resources from resources. Socio-economic assets

of a growth center through the internal communication between the

members of the growth center include the technology companies deployed,

managers and staff of the Incubator and through external communication

with other stakeholders such as consultants, financial organizations,

universities and industries. But one of the most important topics that,

unfortunately, the Marine Science area has been less focused are the

centers of marine science development. By changing the paradigm of

development, from classical to new, sustainable development is becoming

the main pillar of development in any country. On the other hand, countries

that own light in the sea have defined the sustainable development of

seaworthy in their high-level documents. To this end, developed countries

had major educational and research investments in the sea basin, one of

the most important components of which was the development of marine

science development centers. To this end, the researcher provided a

qualitative study and documentary review of the position of the Marine

Science Development Centers in the sustainable development of

seaworthy; practical suggestions were made to the authorities for the

development of Marine Science Development Centers.

Keywords: Marine Sciences; Incubator; Marine Sciences Spin off

Companies; Sustainable Marine Development



4 | P a g e

Investigate Effectiveness of Privatization on

Chabahar Port

Mahmood balooch& Habib allah dahani Assistant Professor, Department of Management, Payame Noor University of Tehran

Postgraduate student of Business management (Marketing), Sistan and baloochestan

University.

Abstract

Privatization is a phenomenon which has been used by developed ports in

order to increase the efficacy and performance of their operations.

Chabahar port is one of our port in development process to compete with

region ports specially Gowater of Pakistan. This port develop its

infrastructures and superstructures. In present, loading and discharging

operation and recently marine operation done by private part. This research

has application nature and effectiveness of Privatization on Chabahar Port

investigated in this paper. Paper done in two stages. In first stage, impacts

of Privatization identified. In second stage, use liseral technique to

evaluate relation of these factors with Chabahar Port. Findings of paper

show Privatization has positive and direct relationship with finance,

market and customer and internal process in Chabahar Port.

Keywords: Privatization, Chabahar Port, Productivity



5 | P a g e

Identify and Prior of Effective Factors

Advertisement of Imam Khomini Port’s Marketing

with AHP

Mahmoud Hoseinzadeh1, Shahnavaz Ayoubi Ayoubloo2, Ali Amiri3,

Soroush Khakipour4, Heydar Zare5 1Supervisor Manager of Special Terminals of Imam Khomini Port;

[email protected]

2 Head Manager of Port Affairs of Imam Khomini Port; [email protected]

3 Manager of Research & Planning of Imam Khomini Port;

[email protected]

4 Manager of Direct Transport of Imam Khomini Port; [email protected]

5 Expert of Port Affairs of Imam Khomini Port; [email protected]

Abstract

Ports need to preserve their customers and attract new customers due to

their activities nature (internatinal and national role) huge investment on

port building and globalization (increase competition between ports in

national and internaional level). Imam Khomeini Port has good sterategic

position and it is best route for import and export to CIS countries special

position in Iran trade with other countries. Port placed in North-Souht

international transit corridors and west corridor of Iran. The port to keep

its market and increase its share in national and regional level, use

marketing tools as effeciency solution for communicating with customers.

Among marketing activities, advertisment is partial of marketing which

concentrate on port prefernce. Six factors impact on advertisment of port:

human resource, budget, equipment, technology, port features and

regulation. Consequents of paper show port features and budget are two

main factor in Advertisement of Imam Khomini Port’s Marketing

Keywords: Marketing, Advertisement, Imam Khomini Port, AHP







6 | P a g e

Identifying Effective Components In Strategy

Development And Designing An Organizational

Performance Management Model(Case Study:

Khorramshahr Port And Marine Administration)

Seyyed Jalil Mousavi 1 *, Mohammad Amir Siavash Haghighi 2,

Mehdi Darabian3, Seyyedeh Fatemeh Mousavi4 *1- Ph.D. Student of Economic and Developmental Sociology, Performance Evaluation

Expert, Khoramshahr Port and Marine Administration; [email protected]

2- Master's degree in Industrial Engineering, Head of the Department of Studies and

Planning, Khorramshahr Port and Marine Administration; [email protected]

3-Software Engineer, Master of Industrial Engineering, Productivity Expert,

Khorramshahr Port and Marine Administration; [email protected];

4- Master of Science in Software Engineering, Performance Evaluation Expert,

Khorramshahr Port and Marine Administration; [email protected] Abstract

Identifying the appropriate variables and determining the priority for determining the

strategy and designing the performance management model at the level of government

agencies is very important. Managing performance by creating a collaborative

environment and communicating the organization's goals to employees and setting up

regular staff assessment sessions will bring about alignment of the goals of the staff and

the organization and increase the productivity of the workforce. The purpose of this paper

is to determine the impact of effective variables on strategy formulation and design of

organizational performance management model at Khorramshahr Port Authority and

Marine Administration. The methodology of this research is objective, applied and of a

descriptive-survey nature. The research instrument is a researcher-made questionnaire.

According to the results of this research, the design of the organization's performance

management model is determined by three main factors: adaptability, human resource

performance, and goal design. These three factors together account for 98% of the impact

on the organization's performance outcomes. Among these factors, the impact of HR on

performance management is the most important factor. The findings show that the

performance of human resources has a 44% positive impact on the performance of the

organization and has the highest score. The research model indicates that the variables of

adaptation and design goals, directly and indirectly, through human resources, affect the

performance of the organization. Thus, the adaptive variables (31%) and the target design

variable (23%) affect the performance of the organization.

Keywords:Performance Management System, Developing a Performance Evaluation

Strategy, Designing Goals, Human Resource Performance, Adaptability, Khorramshahr

Port and Marine Administration.



7 | P a g e

The Role of Knowledge Management In Ports

(Case Study: Imam Khomeini Port Complex)

Abutaleb Grailou1,Sshahnavaz Ayoubi Ayoublo2, Bahram

Shomalipor3, Milad Eidani4 1MSc, Industrial Engineering, Imam khomeini port complex; [email protected]


[email protected]


[email protected]

4MSc, Port and Shipping Management, Imam khomeini port complex;

[email protected]

Abstract

In the present era, that is called era of knowledge organizations are

witnessing the presence of environments that become more dynamic and

challenging day by day. The transformation is an integral part of today's

world. In order to provide efficient, effective, continuous and sustainable

organizations in the world of business and competition, it is necessary to

work base around the science and knowledge.

This research investigates the effect of knowledge management on

improving the performance of Imam Khomeini port complex using the

Bahat model questionnaire, which includes five indicators of knowledge

transfer, knowledge recording, knowledge creation, knowledge

application, acquisition of knowledge in knowledge management and

using descriptive survey method. The statistical population of this study is

limited and the number of sample members based on the Cochran formula

was assume 44 after the pretest. Kolmogorov-Smirnov tests, t Student,

Pearson correlation and Friedman tests were used to analyze the data.

According to the result of this study showed that the status of knowledge

transfer, knowledge recording, knowledge creation, knowledge

application, knowledge acquisition in Imam Khomeini port complex is

desirable and effects on organizational performance improvement.

Keywords: Imam Khomeini Port Complex, Knowledge Management,

Performance Improvement, Productivity



8 | P a g e

Evaluate Transit Position of Imam Khomini Port

by SWOT-AHP Model

Mahmoud Hoseinzadeh Manager of Special Terminals at Khuzestan PMO; [email protected]

Abstract

Iran have ideal position in terms of Geographic that can use advantages of

transit. Imam Komeini Port is one of important south port of our country.

This port has strategic position and has appropriate marine status that has

important role in import of bulk cargo. This paper, investigate Imam

Komeini Port role in national and regional transit. Paper explain capacity

of the port in terms of transit. Use SWOT and AHP to analyses Imam

Komeini Port transit condition. In base on finding of research suggest use

of special zone facilities to expand transit activities, use of private part in

manager and operation process of transit and development structure to

submit support services to ships.

Keywords: Imam Khomini Port, Transit, SWOT matrix



9 | P a g e

Strategic Analyzing of Loading and discharging

Operation of Bulk Cargo in Imam Khomini Port by

SWOT

Mahmoud Hoseinzadeh1*, Aboutaleb Gerailu3, Heydar Zare3,

Mostafa Shahbazi4 1Supervisor Manager of Special Terminals of Imam Khomini Port;

[email protected]

2 Assistance of Marine and Port of Imam Khomini Port; [email protected]

3 Expert of Port Affairs of Imam Khomini Port; [email protected]

4 Supervisor Manager of Oil Terminals of Imam Khomini Port;

[email protected]

Abstract

Ports have important role in international supply chain. Expand using bulk

in transport of goods because to bulk terminal of port accounted advantage

competition of any port. One of important ports is Imam Khomini Port.

This port has unique geostrategic position that placed in west corridor of

Iran and international transit corridor of North-South. Then the port must

appropriate Loading and discharging Operation for Bulk Cargo. The paper

use SWOT matrix as strategic tools to investigate strength, weakness,

opportunity and threat of Loading and discharging Operation of Bulk

Cargo to prepare good strategy refer to result of evaluation internal and

external factors matrix. Result of evaluation internal factors matrix was

2.364 and evaluation external factors matrix was 2.584 therefore preserve

home is location of Loading and discharging Operation of Bulk Cargo in

Imam Khomini Port. With consider research findings, solutions such as

buy new and modern equipment to keep on its status and promote its

position of this terminal.

Keywords: Privatization, financing methods, Imam Khomini Port







10 | P a g e

Investigate Effectiveness of Privatization on

Performance of Port Affaires’ of Imam Komeini

Port Complex

Seyyedeh Fateme Mousavi Nezhad Port Affaires’Operator of Imam Komeini Port Complex; [email protected]

Abstract

Imam Komeini Port is importance port in grain cargo and third port of Iran

in container transport. This port such as other port of country devote its

marine and port activities to private part to match with regulate of 44. In

this research only private section impact on port affair investigated. The

paper is application nature and use explore mix method. In qualitative part,

used national and international articles to identify effects of privatization

on port affairs. Then in quantitative part, design questionnaire and replied

by 50 person of port experts, cargo owner and operators. Use regression

test to analyses data. Findings of research show Privatization on 4 factors

consists on port performance, efficiency of equipment, operation volume

and enhance of loading and discharging equipment has positive effect and

only not effect on reform of port affaire’s structure.

Keywords: Privatization, Imam Komeini Port, Investment



11 | P a g e

Analysis of Alternatives for Battery in Power

Supply System Plan of a Fast Craft, Using Fuzzy

Analytic Hierarchy Process

Behrang Sakhaee1, Mohammad Esmaily2, Davood Fanaei

Sheykholeslami3 1Master of Science in Electrical Engineering, Ferdowsi University of Mashhad ,Iran;

[email protected]

2 Master of Science in Master of Business Administration, Ferdows university of

Mashhad, Iran;[email protected]

3 Bachelor of Mechanical Engineering Azad University of Mashhad ,Iran;

[email protected].

Abstract

Concurrent evaluation and identification of feasible alternatives is

considered necessary for selecting the best option in the context of a

valuable process. Therefore, alternatives should be identified and

evaluated and the evaluation methodology should be determined. This

paper selects proper alternatives for battery in power supply system of a

fast craft and compares them qualitatively and functionally, using

environmental and functional performance requirements of the system. A

cohesive Multi Criteria Decision Making method has been employed

based on fuzzy logic and setd and also the Analytic Hierarchy Process

(AHP) to solve such issues and uncertainty. Notion of managers and

designer of the power supply system is input information for this method.

Then ultimate weight of options is assessed using fuzzy logic, and the

evaluate item is selected as the alternative plan.

Keywords: Analysis of Alternatives, Fuzzy AHP, Fast Crafts, Battery.



12 | P a g e

Feasibility Of Site Selection And Stabilishing The

Dry Port Near In The Vicinity Of City Ahram In

Order To Eliminate The Bushehr City Port

Problems

Hossein Mirzaee1, Behrouz Omarai 2, Bahram Shomalipour3 1 MSC Student, Azad Islamic University of Kharg; [email protected]

2 Professor assistant, Azad Islamic University of Kharg; [email protected]

3 Instructor, Azad Islamic University of Kharg; [email protected]

Abstract

The role of a developed port in the economy and business relations of a country

is like as several industrial cities. Bushehr port has no enough space to develop

and provide extensive port services to the ports of the Persian Gulf region and the

world. For this reason, the traffic is being created in the port and the routes leading

to it and with the expansion of the port, the situation will become more

complicated. Lack of space for emptying, loading and storing loads and

containers is another serious problem in the lack of space around the port of

Bushehr. Another problem with Bushehr port and coastal ports with similar

conditions is the lack of proper access to the destinations and the use of traditional

means of transportation. In such circumstances, the value of using dry ports is

becoming increasingly apparent. Bushehr Port Despite the limited space and

volume of goods displaced and the need to develop and upgrade port services,

customers need a backyard such as a dry port that has both a proper road route to

the Bushehr port and a rail link. Based on the articles and research papers of others

and many interviews with Bushehr port officials, owners of ships, representatives

of ship owners, owners of factories, owners of goods, traders, etc., thirteen key

factors influencing the development of trade and transit of a port were identified.

In Bushehr province, there are three major cities of Borazjan, Choghadak and

Ahram near Bushehr port, which can be considered for feasibility, locating and

creating a dry port in order to resolve the problems of the port city of Bushehr.

To investigate this, it is assumed that facilities, financial resources, and

administrative cooperation exist for the construction of a dry port as necessary.

In this paper, analytical hierarchy process method is used for data analysis.

Keywords: Dry port, Bushehr Port, Ahram



13 | P a g e

A Market Research On Marine Outboard Motors

Ali A. Pashaee1, Masoud Nazari2 1MSc of Mechanical Engineering, Rasht University, [email protected]

MSc of Marine Engineering, Amirkabir university of Technology,

[email protected]

Abstract

In this paper the market situation of outboard motors is presented. At first,

the criteria used for classification of outboard motors are expressed, e.g.

structure and power range. At the present time, more than half of market

share is allocated by low power motors. The mid-range motors will have

the biggest CAGR by 5.18% for the next 4 years. The present market size

and forecast for demand of outboard motors are expressed in global and

regional format. It is demonstrated that in there would be an increase in

demand of outboard motors. Also, the changes in market demand from 2

stroke engines to 4 stroke engines are shown. Statistical data regarding

vessels with outboard motors are presented and it is shown that Iran's

market will show a constant size with a moderate rate of decline.

Keywords: outboard motor, market forecast, revenue



14 | P a g e

Provide an Energy Management Pattern at Nadim

Shipbuilding Corporation in the Persian Gulf

Jahandari 1, Tahmasebi 2 PhD student of business DBA Industrial Management Organization

Assistant Professor of Environmental Department, Payam Noor University, Bandar

Abstract

In recent years, for various reasons, including the gradual elimination of

government subsidies, more attention has been paid to the value of energy

in its various forms, and the need to calculate the amount of energy

consumption and consumption has emerged as an indispensable necessity.

Industries such as petrochemicals and refineries have been starting up

energy management for several years. But most organizations active in

other industries, such as Nadiam Shipbuilding Corporation, have been

neglecting strategic energy planning and energy efficiency due to low

energy costs in Iran. On the other hand, according to the law on targeting

subsidies and raising the price of energy carriers, today serious attention

has been paid to strategic planning and the presentation of an energy

management model in various organizations. Because otherwise, due to

increased energy costs, the cost of their products will increase and the

ability to compete in the market will be greatly reduced. Regarding the

products of Nadim Shipbuilding Corporation, which manufactures and

repairs ships and vessels, and given the presence of strong foreign

competitors, it can be concluded that the price advantage along with the

quality has a significant impact on the sales of the company's products.

Because the customers of this company are often very large governmental,

semi-public and private organizations and companies, the size of these

organizations, unlike the amount of contracts, which is sometimes very

heavy, is limited and low, so losing customers can be irreparable losses.

To the company that the development of the energy management model of

Navy Shipbuilding Corporation can prevent this damage. Therefore, in this

research, a model for energy management of Nadim Shipbuilding

Company has been developed to allow managers and planners to apply

appropriate strategies and management for the company's energy

consumption.

Keywords: model, consumption management, energy, Nadim Company



15 | P a g e

Review of Information Technology Impacts on

Improvement of Bushehr Port Organization’

performance

Behtash Shahabi1*, Behrouz Omaraee2 1 MSc Student of Khark Azad University, [email protected]

2 Assistant Professor of Maritime Science of Khark Azad University,

[email protected]

Abstract

IT in marine and port industry consist of software and hardwires that

increase port operation and improvement its performance and finally

customer satisfaction. The aim of research is review IT impacts on Bushehr

Port Organization’ performance. The paper is Application nature and field

methodology. Used literature review to identify 15 marine and port factors

that affected by IT. Then questionnaire replied by 63 person of marine and

port experts mostly have more than 5 years working and have superior

education. Its Validity type is content and its Reliability amount was 0.806.

Findings of research show IT has positive impacts on 4 Marine factors and

11 Port factors in Bushehr Port Organization.

Keywords: IT, Port Activities, Marine Activities




16 | P a g e

The Effect of Organizational Intelligence and

Spiritual Intelligence on Organizational Learning

(Case Study of Marine Science, University of Imam

Khomeini (RA) Nowshahr)

Abutaleb Motallebi Varkani1, Ali Alimohammadpoor2 1Assistant Professor, Imam Khomeini Naval University of Noshahr;

[email protected]

2master, Imam Khomeini Naval University of Noshahr;

[email protected]

Abstract

The main purpose of this research is to investigate the effect of

organizational intelligence and spiritual intelligence on organizational

learning at Imam Khomeini University of Marine Sciences, Noshahr. The

research method was descriptive survey. The statistical population was

150 employees of the units. They were selected by Grigs and Morgan

tables and random sampling with appropriate allocation of 108 people.

Data collection tool was Karl Albrecht Inventory Inventory (2002) with

reliability of 0.846 and David King's Spiritual Intelligence Questionnaire

(2008) with a reliability of 0.827 Neife's organizational learning

questionnaire (2001) with a reliability of 0.887. Data analysis was done

using descriptive statistics and inferential statistics (including

Kolmogorov-Smirnov test, linear regression and stepwise regression)

using SPSS software. The research findings showed that organizational

intelligence and spiritual intelligence have a positive effect on

organizational learning in Imam Khomeini Marine Science University of

Nowshahr. Also, the components of organizational intelligence (strategic

vision, shared destiny, desire for change, morale, unity and agreement,

application of knowledge, performance pressure) and spiritual intelligence

(critical existential thinking, personal meaning, transcendental

consciousness, level of consciousness development) also Organizational

learning is affected, and the standardized coefficient column shows that

the strategic outlook variable has the most effect.

Keywords: Organizational intelligence, Spiritual intelligence,

Organizational learning, Strategic vision




17 | P a g e

Study and Assessment of Join Bushehr Port to

Railroad and its Impact on Economic Position of

Bushehr Provunce

Gholamhossein Gharibi, Behrouz Omaraie, Ahmad Talebizadeh 1Master of Information Technology Engineering–Information Systems Management,

Shiraz University; [email protected]

2Faculty Member of Department of Electrical Engineering and Computer, Shiraz

University; [email protected]

Abstract

Bushehr port is one of the most important ports in the country, which lacks

of rail transport system. This research has practical nature and its purpose

is to study the economic effects of connecting Bushehr port to the national

railway. This research has been done in two steps. In the first stage, by

using of the experiences of other ports, 15 economic benefits were

identified by rail transport. In the second stage, these factors were

formulated in the questionnaire and were answered by 88 port specialists

and owners of goods and user of Bushehr port and road and urban experts.

Regarding the normality of the data (according to the results of the

Kolmogorov-Smirnov test), the correlation test was used for analysis. One

of the most important findings of this research is the improvement of the

quality of customer service, the efficiency and effectiveness of port

operations, reducing the time of discharge and loading operations and the

cost of freight by truck.

Keywords: Railway, Bushehr Port, Economic Development



18 | P a g e

Investigating the Role of Sea and Port Components

in Resistance Economics

Iran baraee expert of studies and research, Khorramshahr port & maritime

Abstract

Undoubtedly, one of the most influential factors in the economy of the

country is the maritime industry of the country. In this regard, due to the

wide blue border of our country, we can create conditions that, with the

development of this industry, we can enjoy the potential of the sea in

various fields, including the resistance economy. Considering the strategic

role of shipping and ports of the country in the national economy as well

as the international nature and competitiveness of this industry, the need

to implement the foundations of resilience economy is more than ever

before. It is only in the shadow of the application of the foundations of a

resilient economy that ports and the country's maritime transportation

system can play a decisive role in the transit of goods and transit in the

Persian Gulf and the Persian Gulf. Sea basins, including ports, can play an

important role in resilient economies through non-oil exports, tourism, and

maritime transport. The purpose of this research is to investigate the role

of sea and port components in resistance economy.

Keywords: Reservoir economy, port, marine transportation, non-oil

exports, tourism



19 | P a g e

Reviewing and Prioritising Requirements of Passive

Defense in the Line of Development Makran Coast

(Case Study of Shahid Beheshi Port of Chabahar)

Mohammad Hossein Yarahmadzehi1, Ali Kamali2, Milad Eidani3 1Ph.D. of human resource management, Chabahar Maritime University;

[email protected]

2M.Sc. of Intercontinental Marine Transportation Management, Chabahar Maritime

University; [email protected] 3M.Sc. of Port and Shipping Management,

Chabahar Maritime University; [email protected]

Abstract

Ports are entry gateways in countries and played a key role in the

international transport of goods. Also ports consider as a strategic point

and sensitive for countries and it’s essential to provide the security and

safety of ports through the implementation of the requirements of passive

defense. Implementation of passive defense in the ports meets the ongoing

requirements of security and Caused to reduce the amount of damage to

the port's to the lowest possible when accidents happen in ports by

implementing the requirements of passive defense. Chabahar port has a

unique position in the national and international level and with regard to

the implementation of port development and the unrest in the region and

neighboring countries it is necessary to ensure the safety and security of

the port through the implementation of passive defense requirements in

terms of time be established until the accidents occur be the least amount

of possible damage. The research was carried out applying a descriptive

survey method and used AHP method in order to prioritize requirements

of passive defense in Shahid Beheshi Port of Chabahar.

Keywords: Chabahar port, passive defense, Prioritization, Analytic

Hierarchy Process



20 | P a g e

Pathology Barriers to Implementing and

Implementing Strategic Decisions in Marine

Organizations and Prioritizing Solutions to It by

Using the Analytical Hierarchy Process

Abutaleb Motalebi varkani1, Ehsan taghipour2, Ali

alimohamadpour3 1 Assistant Professor of Educational Management at Imam Khomeini Naval Sciences

University, Noshahr

2 Member of faculty member of Imam Khomeini Naval Sciences University, Nowshahr

3 Member of faculty member of Imam Khomeini Naval Sciences University, Nowshahr

Abstract

Over the past decades, top organizations around the world have recognized the

importance and importance of strategic planning and its benefits in advancing its

goals and plans and determining the organization's future. Therefore, the

experience of recent strategic naval forces in strategic planning and recent

successes of the organization is indicative of the importance of these types of

decisions. Strategic strategies and decisions of the organization can create

conditions for new systems for organizations to create conditions for

competitiveness in a dynamic and competitive environment. In this research,

efforts have been made to prevent the implementation and implementation of

strategic decisions in Strategic naval force of the Army. The present study is

descriptive / survey in terms of purpose and data collection method. Therefore,

by reviewing the thematic literature, 14 variables were identified as barriers to

implementing strategic decisions. Using the Statistical analysis of the

demographic status of the statistical sample was investigated After removing

identified obstacles, a questionnaire was developed in 4 sections and into a paired

comparison structure. After distributing the questionnaires and collecting

information using the AHP method and with the help of Expert Choice software,

prioritizing the identified barriers in each branch was studied and the results

showed that the lack of proper evaluation system in the structural branch, the

weakness of the sections implementation And Safi in behavioral dimension and

organizational culture in the context of the context are the most important

obstacles to the implementation and implementation of strategic decisions.

Keywords: Strategy-Implementation -Agenda-Strategic Solutions-Marine

Organizations

Offshore oil and gas technologies Offshore drilling Oil and gas well cementing technology Reservoir engineering and management Marine reservoir production

Offshore oil and gas industry2 Offshore oil and gas technologies Offshore drilling Oil and gas well cementing technology Reservoir engineering and management Marine reservoir production

Offshore oil and gas industry2



21 | P a g e

Reliability Assessment of Offshore Pipelines

Against VIV Fatigue

Mohammad Daghigh1, Mohammad Mahdi Shabani2, Abbas

Etemadian3 Associate Prof. of Offshore Structures, Pars Oil and Gas Company (POGC),

[email protected]

2M.SC student in offshore structures, Petroleum University of Technology (PUT),

[email protected]

3B.S. student in Nautical machinery, Petroleum University of Technology,

[email protected]

Abstract

Free spanning as one of the of the effective parameters on the pipeline

fatigue life capacity happens due to the uneven seabed, scoring, and

artificial supports. Under special conditions, free spanning can lead to

pipeline fatigue. If the shedding frequency close to pipeline natural

frequency, pipeline failure may occur. In this paper, the most popular limit

state functions on pipeline spanning are discussed and reviewed. Then,

using First-Order Reliability Method and Monte –Carlo Sampling, health

and integrity of a pipeline located in the Persian Gulf considering different

limit state functions corresponding different span length to pipeline

diameter and different soil classes are assessed. Furthermore, in order to

determine the effect of each parameter on failure probability, several

sensitivity assessments are carried out. It is concluded that First-Order

Reliability Method can be applied in case of large span length to pipeline

diameter and hard soil. Also, no failure didn’t happen for soft soils.

Keywords: pipeline, probability of failure, free span






22 | P a g e

Optimizing Of Globe Valve Based on

Hydrodynamic Numerical Model in Different

Situations

Amir Ramtinpoua1, Mohsen Faghihifard2, Arman Adamian3 1 Msc. graduated, Department of Mechanical Engineering, Islamic Azad University

Central Tehran , tehran, Iran, [email protected] 2 Msc. graduated, Department of Mechanical Engineering, Isfahan Univ. of Tech.,

Isfahan, Iran, [email protected]

3 Assistant professor, Department of Mechanical Engineering, Islamic Azad University

Central Tehran , tehran, Iran, [email protected]

Abstract

The spigots widely use in different industries and based on different

circumstances have different duty such as rectifiers – chokers surrenders –

regulators and mixers the flow in the pipe. one of the kinds of the spigots

is spherical type. In this paper one spherical spigot is numerically

simulated and has been used mixture model to calculate cavitation too.

Result showed that three main hydrodynamic vortices explain the current

in the spherical spigot. The third vortex has a lot of effects in the span of

the pressure drop’s area in front of the spherical spigot and the cavitation

occurs in high angles of the spigot. Therefore, we can use this kind of

spigot when we don’t have high cavitation. Also it is noted that low

pressure differences is determinative factor to prevent cavitations'

phenomenon.

Keywords: Globe valve numerical model, cavitation, turbulence model,

Fluent program.

http://iauctb.ac.ir/en/news/1510/islamic-azad-university-central-tehran-branch





3 Marine traffic and transport Marine logistic and services Bunkering

Seafaring and marine transportation3 Marine traffic and transport Marine logistic and services Bunkering

Seafaring and marine transportation



23 | P a g e

Estimation of Competitiveness of Container

Terminals in Iran Using Multi-Criteria Decision

Making Methods

Hamid jafari1, Hassan jafari2, Mahmoud ghiasi3, Mesbah saybani4 1MSC. student in maritime transportation engineering, amirkabir university of

technology

2MSC. in maritime transportation engineering, khorramshahr marine science and

technology university (KMSU)

3Assistant professor faculty of marine technology , amirkabir university of technology

university

4Assistant professor faculty of marine technology , amirkabir university of technology

university

Abstract

This research has been conducted to determine the effective factors on the

competitiveness of the containerized terminals on the basis of

competitiveness indices using the topsis method and the hierarchical

analysis process method in two steps. In the first stage, using Delphi

method and investigating the research background, the indices effective in

the competitiveness of terminals in the country were identified and in the

second stage, the identified indicators were weighted using the hierarchical

analysis process method, and then the terminals were considered based on

These indicators are ranked by the Topsis method. The final results

obtained from the TOPSIS method highlighted that Terminal 4 with the

final rating of 0/85533 ranked first, Terminal 2 with the final rating of 0/

48228 is ranked second and Terminal 3 with the final rating of 0/43417 is

the third place and finally the terminal 1 with the final score of 0/1717

with a very low score was fourth. The results of this study showed that the

TOPSIS method has a very high rating for ranking and can be used as an

efficient and accurate tool. In marine shipping research The results of this

study showed that The TOPSIS method has a very high rating and can be

used as an efficient and accurate tool in marine transportation research.

Keywords: Container terminal, Maritime transportatin, Competitiveness,

Topsis, Hierarchical analysis process



24 | P a g e

Energy, Exergy, Environmental and Economic (4E)

Analysis of Using Hybrid Compression-Absorption

Refrigeration System on a Merchant Ship

Seyed Sajjad Jalali1, Seyed Mohammad Hesein Sharifi2*,

Gholamreza Salehi3, Majid Eshagh Nimvari4

1Department of Energy Systems Engineering, Petroleum University of Technology,

Mahmood Abad, Iran. [email protected]





4Faculty of Mechanical Engineering, Amol University of Special Modern

Technologies, Amol, Iran. [email protected]

Abstract

This paper presents a steady-state energy, exergy, environmental and

economic (4E) analysis for hybrid compression-absorption refrigeration

system on a merchant ship. Exhaust gases of auxiliary engines are used to

vaporize high pressure water as a heat source for the generator of the

absorption section. The results show that exhaust gases of auxiliary engine

unlike main engine is an appropriate and permanent heat source for the

system. based on tropical conditions, fuel consumption and total

irreversibility rate of the proposed system are 91.8% and 26% less than

conventional system (vapor compression refrigeration system)

respectively. Because of the anxiety about environmental issues, an

environmental analysis has been conducted that the results show that the

application of hybrid compression-absorption refrigeration system causes

68664 $ annual saving versus vapor compression refrigeration system due

to reduction in CO2 emission penalty(cost). Also, economic analysis has

been done where the results show 3 years and 3 months for payback time

of proposed system.

Keywords: air conditioning, refrigeration, waste heat recovery, auxiliary

engine







25 | P a g e

Detection And Classification Types Of Ships By

Using Image Processing New Algorithms

Iman Golchin Chafi1, Asghar Eskandari Chechaglou2, Mahdi Hariri3 1Faculty of Electrical and Computer Engineering, Islamic Azad University, Zanjan,

[email protected]

2Faculty of Mathematical Science, University of Guilan, Rasht,

[email protected]

3Faculty of Electrical and Computer Engineering, Islamic Azad University, Zanjan,

[email protected] Abstract

Detection and classification of various types of ships that pass through a

waterway is one of the issues that have been considered by many

researchers nowadays. Detection and classification of the ships can be

considered from many aspects such as security, control, and military,

which in each of the cases mentioned, special measures are taken with

regard to the type of the ship. In this paper, we are trying to provide a

method for detecting and classifying five different classes of ships. In this

research, first, the key points related to the images of different classes are

extracted using the speeded up robust features extraction algorithm. Then

using the bag-Of-Words model and applying the K-Means function, the

key points obtained are clustered. Then, we obtain the histogram of the

centers of the clusters as the visual words for the existing images in

different categories, and finally, detect the type of the ship by categorizing

it using the support vector machine. Experimental results show that with

the proposed method, ships are classified with high precision in these five

groups.

Keywords: Clustering, classification, speeded up robust features, bag-of-

words model



26 | P a g e

Assessing The Dangers Involved In Pipeline

Operations And The Separation Of Tanker Ships

Into The Quay On Khar Island

Seyed Bakhtiyar Ghasemi Fard, Gholamreza Jafar Ganji

Abstract

The purpose of this study was to assess the dangers of pipeline operations

and the separation of tanker vessels from the quay in Kharg Island. In this

research, the risk factors in the process of pipeline operation and the

separation of tankers from the quay in Kharg Island have been evaluated

and analyzed using the method of analyzing the state of failure and its

effects using the theory (FMEA). Estimation of risk factors by collecting

data from a working group of five experienced and experienced experts in

the island of Kharg, which included two tanker captains, two guides and a

tugboat captain. The results of the FMEA method show that, according to

the FMEA group, the potential risk of falling into the sea when towing, the

fall of the people to the sea, the time of joining the ship, the fall of the

people to the sea when they landed, and the technical violation or

inefficiency of the tow Operations accounted for the highest RPN rating

and were unbeatable in the group. Hence, measures to reduce the level of

risk have been defined, among which the most important is the supervision

of the commander of the ship on the equipment and work of the personnel

involved in the operation of the transfer of guidance. Also, the guy's

knowledge of the standards of the equipment guidance and checking it

before using them has a lot of effect in reducing the level of risk.

Investigating and using the experience of guides can change and improve

the forwarding system in the future.

Keywords : Dropping and separating, tankers, docks, Kharg Island,

Dangers



27 | P a g e

Review Strategies To Increase Transit Capacity Of

The Bushehr Port

Hasan Daryanavardi 1, Ahmad Talebizadeh 2, Gholamreza Delbar 3 1 MSC Student, Azad Islamic University of Kharg; [email protected]

2 Instrucor, Azad Islamic University of Kharg; [email protected]


Abstract

Competition in global markets and the development of domestic and

foreign trade is very important. Planning and training in any field requires

knowledge of the status quo. The multi-dimensional analysis and multi-

criteria evaluation with high flexibility and capacity to indicate the priority

for corrective action, the ability to demonstrate the strengths and

weaknesses, allowing graphical analysis, direct the allocation of resources

and infrastructure in developing the reform strategy is needed. IPA model

(analysis of the Importance - Performance) is analytical instruments and

effective. In order to analyze the current situation of surveys and

interviews with professionals and experts in the field of to port transit

capacity, the most important factors to increase Bushehr port transit

capacity were identified. After determining the important factors affecting

to increase Bushehr port transit capacity, two questionnaires was prepared.

One of the questionnaires was the importance and other questions were the

performance of each index. Questionnaire based on Likert theory and its

validity and reliability with using Cronbach's alpha and SPSS software

were demonstrated. 80 employees Bushehr port responded to the

questionnaires. By the average output of questionnaire, the matrix of

importance - performance was drawn. This matrix was performed based

on data-driven.

Keywords: Transit, Bushehr port, Transit capacity



28 | P a g e

Vorticity Changes Due To Atmospheric And

Marine In The Caspian Sea Basin

M. malekilonbar1 , D. Mansoury2 , A. Rashidi Ebrahimhesari3 1MSC. student in Physical Oceanography, College of Marine Science, University of

tarbiyat modares, Iran.

[email protected]

2Assistant Professor, Physical Oceanography, College of Marine Science, University of

tarbiyat modares, Iran. [email protected]


tarbiyat modares, Iran. [email protected] Abstract

In this research, the variability in Curl pressure gradient and surface

vorticity and advection and diffusion of the Middle Caspian Basin for

February and August was studied using POM model. The POM model is

an oceanic model with vertical sigma coordinates. In this model,

temperature and salinity field’s data and River data from monthly average

and Bathymetry data were collected from WOA , NRL and GEBCO08

with an spatial resolution of 30 seconds is used, respectively. The

atmospheric flux data were collected from ECMWF, with a resolution of

7.5 minutes and the time step of 6 hours. After examining the stability of

the POM output with observation data available were compared, that good

agreement between their temperature and salinity changes observed. From

the results of this study, the Curl pressure gradient can be mentioned as the

most influential component on the vorticity. The maximum values of the

Curl pressure gradient and surface vorticity and advection and diffusion

are respectively 113 e ,

102 e and 112 e per second squaredin the

northwestern and western parts of the basin can be seen.

Key words: Vorticity, POM model, Caspian Sea




29 | P a g e

Review Of Effective Factors On Success Of Oprc

Convention Against Oil Pollution In Iranain

Seaports

Ramin Rajaee NITC Operation and Commercial Manager Asaloyeh Branch; [email protected]

Abstract

Annually more than 50 thousands ship pass through Persian Gulf that an

accident or oil spill from these ships can extreme damage to environment

of Persian Gulf. OPRC is one of Oil Pollution response convention which

Iran is its member. This research use explore mix methodology. In

qualitative section, effective factors on successful implementation of this

convention identified by study creditable national and international

resources. Then these factors designed in questionnaire and replied by 86

of pollution experts and managers of south ports to determine status these

factors in these ports. Validity of research approved by content way and

reliability is acceptable refer to Cronbach's alpha result (0.83). Use T test

for analyzing of questionnaires. Findings of research show implement of

identified factors impact on success of OPRC convention is appropriate in

Iranian south ports.

Keywords: OPRC Convention, Port and Maritime Organization, Oil

Pollution




30 | P a g e

The Effect of The Propeller Geometry on The Ships

Fuel Oil Consumption

Ali Montaser Kouhsari1, Hassan Ghassemi 2, Hamid Alirezaloo3 1M.Sc of Naval Architecture-Ship Hydromechanics , Ports & Maritme Organization of

Iran; [email protected]

2Professor of Maritime Engineering, Amirkabir University of Technology;

[email protected]

3 M.Sc of Naval Architecture-Ship Hydromechanics, Imam Khomeini Naval

University; [email protected]

Abstract

Fuel costs are one of the most important sectors affecting shipping costs

and the shipping industry. Fuel consumption in large vessels of about 1,000 to

5,000 liters per hour. And the cost of energy consumed during the life of the

vessel will be at $ million. On this basis, making even small changes to the body

system, thrust and propulsion that reduces fuel consumption, it will have

significant effects on reducing shipping costs. The global energy crisis and on the

other hand, the establishment of international maritime conventions to reduce the

environmental pollution caused by fuel consumption of the ships have led to

research into reducing fuel consumption and pollution caused by it. In this

research, the effect of changes in geometric characteristics (pitch ratio, cord ratio

and thickness ratio) of the propeller has been taken into account on the fuel

consumption of the ship and the resulting pollution. For this purpose, has been

tried to rely on the theory of elemental elements, the role of the geometric

variations of the propeller on the fuel consumption of the system and the index

of pollution in operational conditions are analyzed. Investigations have shown

that the changes in propeller efficiency are inversely proportional to changes in

the cord and pitch ratio and a change in the thickness ratio will have a negligible

effect on the propulsion efficiency. On the other hand, the process of changing

fuel consumption and pollution index are directly proportional with changes in

the pitch and cord ratio. Considering the operational profile of the ship and the

price of the fuel used, it was determined. Forty percent reduction in the pitch and

cord ratios, as compared to the original design, would result in cost savings of

425.77 and 179.978 milion toman per year, respectively. In addition, the

operational efficiency index of ship energy efficiency is reduced by 20.67% and

8.74%, respectively.

Keywords: Blade element theory, Hydrodynamic characteristics, propeller

optimization, Trust, Torque, Efficiency, Fuel consumption, Energy efficiency

index



31 | P a g e

Identify The Risk Assessment Of The Ship To Ship

Operation At Kharg Oil Terminal And Providing

Appropriate Solutions

Mehrdad Behrouzifar1, Madjid Mousavi 2, Mohsen Vaezzadeh3 1 MSC Student, Azad Islamic University of Kharg; [email protected]


3 Instrucor, Azad Islamic University of Kharg; [email protected] Abstract

Ship to ship (STS) transfer operation is the transfer of cargo between

seagoing ships while stationary or underway. The ship of Recipients of the

goods is called daughter vessel and ship of Provider of goods that to be

lightened is called Mother Vessel. The reasons for turning to these methods

include the lightening of a ship before entering the harbor or to recover

floating force of ships that have been deducted floating force due to

accidental incidents, Fueling operations, reserving time in a very compact

schedule, Commercial reasons such as changes in owner of the cargo while

the ship is at sea. Since ship-to-ship operations are very complex and the

occurrence of an incident for the two ships during the operation may cause

significant or irreparable damage or loss of human life on both sides.

Identifying the potential hazards of ship to ship operation is essential and

it is necessary that after identifying them, appropriate strategy or strategies

are presented to prevent the risk. Therefore, in this thesis, the potential

risks of ship to ship operation at the Kharg oil terminal have been identified

and appropriate strategies to prevent the risk have been presented. In this

research, after the study of others' research, standards and instructions

related to ship to ship operation and interviews with experts in the field of

ship to ship operation, the potential hazards of ship to ship operation were

identified and on the basis of a questionnaire that answered by 50 experts

of ship to ship operation, data were analyzed by using a paired analysis

method.

Keywords: Danger, ship to ship Operation, Oil terminal



32 | P a g e

Air Conditioner Unit Designing And Its

Optimization In A Vessel Using The Wasted

Energy Of Engines Cooling Water

Mohammadreza Akef1, Mohamad Mehdi Layeghnejad2 1Mohammadreza Akef, Master of mechanical engineering; [email protected]

2M. M. Layeghnejad, Instructor, Islamic Azad University of Anzali,

[email protected]

Abstract

In the present study, a central air conditioning system is designed to

provide the comfort for the crews. Since the accurately calculation of the

thermal loads and the inflow of air for each section is a most important

factor in choosing an air conditioner system. At the first, the thermal load

created by the walls, floor and ceiling, windows, people, lighting are

accurately calculated by the code that is written in MATLAB with couple

by Excel software, and then the air inflow was revealed to any room.

Second, at the first step, an air conditioner and a condensing chiller were

introduced as a central air conditioning system.Then at the second step, an

air conditioner and an absorption chiller were introduced as a central air-

conditioning system and when floating engine is on, a heat exchanger was

suggested that by using the water used for cooling engine, enough hot

water for the absorption chiller is supplied. A boiler is also foreseen for

shutdown periods of the floating engine. The results show that with regard

to the higher efficiency coefficient of compression chillers than absorption

chillers, in the absence of cooling engine water for heating water in the

adsorption chiller, compression chillers are more useful. But in the current

situation and with regard to the availability of having and using engine

cooling water, absorbing chillers is the best choice. The results also show

that optimum use of cooled water heat can save fuel consumption in diesel

generator, so after a while, the higher cost of recuperating chillers is

compensated by reducing fuel consumption.

Keywords:Adsorption chiller, Buoyant air conditioner, Compression

chiller, Heat exchanger, photovoltaic, Solar cell.



33 | P a g e

Surface-Piercing Propeller Model Testing In The

Free-Surface Water Tunnel Of Babol Noshirvani

University Of Technology

Mohioddin Siavoshian1, Rouzbeh Shafaghat2, Seyyed Mostafa

Seyyedi3 1Masters Student, Babol Noshirvani University of Tech; Sea Based Energy Research

Group; [email protected]

2Associate Prof, Babol Noshirvani University of Tech; Sea Based Energy Research

Group; [email protected]

3PhD Student, Babol Boshirvani University of Tech; Sea Based Energy research Group;

[email protected]

Abstract

Nowadays, according to the high benefits of Surface-Piercing propeller

compared to immersed propellers, they are used in Planning hulls. Since

the modeling of these groups of Propellers is limited by theoretical

methods, experimental studies are carried out on them. Experimental

studies of Surface-Piercing Propellers are carried out in devices known as

Towing Tank and Free surface water tunnels. In this study, a free surface

water tunnel constructed in Babol Noshirvani University of Technology

was used to test the model of a Surface-Piercing Propeller. Since the

dimensionless Advanced Coeficient parameter in the surface-Piercing

Propeller test is great importance, speed calibration was performed in the

test section. Then the uncertainty analysis was done to verify the accuracy

of the data. In order to calculate the hydrodynamic coefficients of the thrust

and torque, a dynamometer system has been used. This system has been

constructed and Calibration of dynamometer was done for measurement.

By providing the test conditions of the propeller model, the test was carried

out at an shaft angle of 0 ° and for different immersion ratios. In this study,

a 5-blade propeller with a diameter of 135 mm and a 26 mm hub diameter

was used. The results indicate that, with increasing imersion ratio, the

hydrodynamic coefficients also increase. The critical Advanced ratio for

this propeller is in the range of 0.65 ≤ J ≤ 0.75 .

Keywords: Surface-Piercing, Calibration, Uncertainty Analysis,

Dynamometer, Thrust coefficient, Torque coeficient



34 | P a g e

Shipping Business and its Players Relation in

Future

Reza Razavi Sayad1, Marzieh Shahrezaei2 1MSC in Marine engineering, Sharif University / IRISL; [email protected]

2MSC in IT Management, Alzahra University / IRISL; [email protected]

Abstract

The structural and operational model governing the bulk and container

shipping markets and its prospects is investigated. The breadth of the bulk

market, along with the efforts of the players in this market to reduce costs

and maximize the use of ships, has been examined. It seems that the

models that these markets are operating in will change in coming years.

One aspect of this change would be more interaction with customers.

Majority of these changes has been to reduce costs and increase the

survival and competitiveness of companies. The place of competition

between shipping companies would be more likely the kind of relationship

between companies and their customers, which can affect a large part of

the supply chain of these markets. Issues such as future financial

conditions and major environmental regulations affecting the shipping

industry, its consequences for the maritime shipping market and the

various solutions proposed by the International Shipping Organization to

comply with these regulations have been addressed.

Keywords: Shipping market future, supply chain, customer relation, risk

control, brokers, bulk, container, regulations

National and international rules, standard and conventions Marine insurance Law of the sea Marine Labor convention

Rules and standards4 National and international rules, standard and conventions Marine insurance Law of the sea Marine Labor convention

Rules and standards4



35 | P a g e

Role of Training in Improving the Performance of

Port Logistics Staff

Gholam Reza Emad 1, Negar Alimohammadi 2, Milad Eidani3 1 PhD, University of Tasmania, Maritime Education and Training;

[email protected]

2 MSc, Maritime Transportation; [email protected]

3MSc, Port and Shipping Management, Imam Khomeini port complex;

[email protected]

Abstract

Safety of human resource is one of the most vital factors in safe operation

of ports. Promoting safety of logistics workers can be accomplished by

effective training.This research has been carried out in order to improve

the level of safety of port security logistics personnel through the

effectiveness of the provided trainings in a qualitative and case study

Chabahar port. At first, the logistics officers of the affected port were

interviewed and the incidence of accidents was investigated. Then,

different levels of organization were interviewed from high to lower

grades. In order to find the effective factors in reducing the effectiveness

of training after the relevant research, the researchers derived six main

codes. These six floors include the use of unskilled port logistics workers,

Chabahar Special Conditions, cultural and ethnic differences, lack of

effective monitoring of the performance of private contractors in ports,

lack of obligation and enforcement of laws and there is also a lack of port

security equipment.

Keywords: Training Efficiency, Port Logistics Staff, Harbor Safety

Improvement, Chabahar Port

Marine Industries Conference th9Abstract Book of 1 Iran d, Kish Islan –Dec. 2017 14 -11


36 | P a g e

The Role of the Iranian Ports in the Improvement

of the Ballast Water Management Program

According the Provisions of the International

Ballast Water Convention in the Persian Gulf

Mostafa Zarenejad Ashkezari1, Farshad Haeri2, Abbas Zarenejad

Ashkezari3 1Second officer, Islamic Republic of Iran Shipping Lines (I.R.I.S.L);

[email protected]

2Research Manager, I.R.I.S.L maritime training institute; [email protected]

3Assistant Professor, Imam Khomeini Maritime University of Noshahr;

[email protected]

Abstract

Recognizing the potential effects on marine ecosystems from introductions

of harmful non-native animals and plants from ballast waters, the IMO has

taken action by developing guidelines which aim to minimize the risks of

environmental damage, whilst maintaining ship safety. This paper will

provide an overview of the current international provisions, mainly those

established by the IMO on the matter, as well as describe how the subject

is currently treated in Iran, including through a review of national

legislations, institutions, and observations on the limitations of the current

approaches and the conduct of a Port State Control Inspection, to verify

compliance with the requirements of the International Convention for the

Control and Management of Ships’ Ballast Water and Sediments, 2004

(BWM Convention),which is not intended to limit the rights the port State

has in verifying compliance with the BWM Convention. Regarding the

role of ports in the national ballast water management program, this study

will also review the possibility of establishing standardized procedures for

environmental licensing of ports and terminals in Iran, including the

necessary criteria for ballast water management.

Keywords: BWM, PSC, Persian Gulf



37 | P a g e

Study of the Effectiveness of Trainings for Port

Logistics Workers in Improving the Safety Level of

Ports

Emad Gholam Reza 1, Alimohammadi Negar 2 1 PhD, University of Tasmania, Maritime Education and Training;

[email protected]

2 MSc, Maritime Transportation; [email protected]

Abstract

The success of a port depends on its performance in an environment with

an acceptable level of risk. This can be achieved when their trained

competent workforces perform their duties in a safe workplace.

Workforce-related mishaps not only create severe problems for the port

and its productivity but also their impact may extend beyond the port

boundaries. Improving the safety level for port logistics workers is directly

related to the effectiveness of their training. The main objective of this

research is to study the effectiveness of the training offered to port logistics

workers and its impact on enhancing their safety. This paper is based on

the findings of a qualitative case study research performed in the Chabahar

port. The research shows the inefficiency of port logistics workers’

competency development and training system. The underlying factors can

be summarized in three major areas, namely; funding, safety awareness,

and operational issues. To address these factors a number of

recommendations have been suggested with the aim to resolve the

impediments that hinder the increasing effectiveness of training.

Keywords: Port safety, Training effectiveness, Port logistics workers,

Iranian ports

Marine Industries Conference th9Abstract Book of 1 Iran d, Kish Islan –Dec. 2017 14 -11


38 | P a g e

The Investigation of Maritime P&I Insurance Law

Exclusions (Cargo Insurance)

Mokhtar Moradi1, Niloofar Malekifar2 1Master Mariner & BSc in Marine Engineering, IRISL Company (QITA P&I Club),

[email protected]

2MSc in Industrial Engineering, IRISL Company (QITA P&I Club),

[email protected]

Abstract

Although Iran has a long shipping history but no impressive development

can be seen in the legal issues. There has been many factors causing such

lagging behind, including low knowledge of all those who involved in

marine insurance, legal issues and maritime law and wrong assumption

when dealing with such rules and legal issues. The other factor which can

be noticed is the shortcoming in the marine contracts. In this article we

tried to investigate the few important non liability of the carriers due to

exceptions in the rules in this regard. We also noted on the privileged rules

in case of existence of more than one rule, hopping to be used as a guide

line for those who need to be more conversant in these fields.

We opine that the best way of solving the difficulties in maritime legal

issues is that all who are involving with marine industries, update

themselves and study the regulation and rules including local and

internationals. Contracts of carriage, contracts of insurance, policies, all

required to be carefully written to avoid any ambiguities.

Keywords: Cargo Insurance, P&I Cover, Both to Blame Collision Clause,

Carrier Liability, Maritime Disputes, Hague Law

Prevention of marine accidents Marine search and rescue Marine pollution Marine environment protection methods

Health, safety,and environment in marine industry5



39 | P a g e

Studying And Identifying Of Adverse Stability

Effect Of Imported Japanese Vessels And It’s

Recommendations

Hojjat Khosravi 1. MS in Maritime Transport, Marine Casualty Department, Ports and Maritime

Administration of the Bushehr province; Email:[email protected]

Abstract

Despite repeated efforts on building safety vessels and using advanced

equipment such as navigation equipment and safety equipment, marine

accidents still occur, resulting in personal injury and property damages and

pollution of the marine environment. According to the studies, a large

percentage of the accidents are rooted in human errors, and some are due

to structural defects. However, the second category also converts to

accidents because of human error, but paying more attention to structural

defects can prevent similar accidents in the future. Therefore, the purpose

of this report is to investigate the accidents caused by adverse stability

(sustainability) of vessels in Bushehr province, which should be specially

considered according to the importance of the investigation and the

number of similar accidents.

Keywords: Human Error, Marine Casualty, Stability

Conference Marine Industries th9Abstract Book of 1 Iran d, Kish Islan -14 Dec. 2017 -11


40 | P a g e

Assessment And Management Of Environmental

Consequences And Safety Of Possible Fire In

Rolling Industries As A Supplier Of Marine

Industries

R.Karimzadeh1, Sh.Jahanbin2 1Head of fire department of Oxin Steel Company of Khuzestan,

[email protected]

2 Master of Environmental Management, Head of Environmental Protection, Oxin Steel

Company, Khuzestan

Abstract

The purpose of this study was to identify and assess the health,

environmental and environmental consequences of fire in the rolling

industry as a major supplier in the sea-based industries. The occurrence of

possible fires in industries creates environmental and safety effects and

impacts. This research has been carried out to minimize injury damage in

four operational-research phases. In the first step, the survey of rolling

industry, field visits and international records was conducted. In the

second step, the safety, health and environmental implications of possible

fires were identified using the Delphi technique. In the third step, the most

significant outcomes identified for determining the most effective

improvement strategies were identified using the Analytical Hierarchy

Model (AHP). In the end, strategies for preventing and combating

potential fires with the goal of minimizing injury damage were identified

using the Internal Factor Assessment Matrix (IFE)

Keywords: Fire Management, Environmental and Safety Consequences,

Rolling Industry, AHP Model, IFE Matrix




41 | P a g e

Bio-Fouling Organisms And Their Effects On

Marine Ecosystems Mohammad Gorgij Jaski, Kiomars Roohani

Abstract

All surfaces in the marine environment are exposed to a variety of

biological, physical and chemical factors that result in the formation of a

complex layer of attached microorganisms and macroorganisms referred

to as biofouling. This organisms are known as a settlement or an

attachment of a community of usually visible plants and animals on

manmade structures (Immersed structures such as hulls, navigational

buoys, underwater equipment, seawater piping systems, industrial or

municipal intakes, beach well structures, oil rigs and cages) and farmed

species (mussels, scallops, oysters etc) exposed to seawater environment.

Biofouling includes diverse organisms such as barnacles, bivalves,

bryozoans, polychaetes, ascidians, hydroids, sponges and algae. Because

of their attachment to manmade structures barnacles are viewed as major

biofoulers. Biofouling promotes corrosion of materials. The principal

objective of biofouling control technique is to prevent the growth of

unwanted aquatic organisms on manmade structures. The direct economic

costs of biofouling control to the aquaculture industry are substantial, with

estimates of 5–10% of production costs attributed to biofouling. Most

control strategies are designed to treat the larval and juvenile stages of

fouling organisms, although some of these strategies are effective against

adults as well. Traditionally, the control of biofouling has involved costly

and labor intensive mechanical processes coupled with the use of toxic

antifouling coatings. Coating marine structures with paints containing tri-

butyl tin (TBT) or copper are the most common method to deter fouling

organisms from settling and attaching. In this review we will discuss the

fouling of marine structures and marine organisms, the problems

associated with biofouling in manmade structures and aquaculture, and a

range of control or antifouling technologies currently available in the

world.

Keywords: Biofouling, barnacles, marine structures, control strategies.



42 | P a g e

Safety and Risk Analysis in Human Hazards for a

Coastal Missile Launcher System Using Fuzzy

Fault Tree Analysis

Behrang Sakhaee1, Mohammad Esmaily2, Mahdi Ardeshiri3 1Master of Science in Electrical Engineering, Ferdowsi University of Mashhad ,Iran;

[email protected]

2 Master of Science in Master of Business Administration, Ferdows university of

Mashhad, Iran;[email protected]

3 Ph.D. student of electrical engineering in shahrood university of technology,

shahrood, Iran; [email protected] Abstract

Today, to avoid in large-scale losses as well as life and substantial financial

disadvantages in defense systems, strengthening immunity of this systems

against human casualties and system, have become one of the hottest topics

discussed by scholars and experts of central defense. In this paper,

different potential causes for the reduction in personnel safety in coastal

missile launch system, using statistical data collected from similar systems

experts and system administration have been identified. Also according to

the system lifetime, including maintenance, transportation, loading and

launch, the fault tree is made to identify the causes of damage to personnel.

In conventional fault tree analysis, the likelihood of main event was based

exact probability of basic events. However often in defense systems is

difficult obtain of accurate and adequate information for basic events.

Thus, in this paper, a hybrid approach from the fuzzy sets and fault tree

analysis is used for evaluation probabilistic safety of personnel in this

system. Also using the resulting probability of this method and derived

severity of hazards from expert’s opinions, risk of hazards is calculated.

The calculated results hazards can be defined as a perfect platform to make

decisions and prioritize corrective actions for these risks.

Keywords: Costal missile launcher system, Safety, Risk analysis, Fuzzy

Fault Tree Analysis.



43 | P a g e

Investigation, Evaluation And Updating Of

Specified Courses For Tug Boat’s Commanders

And Their Effect On Oil Terminal Safety

Enhancement

Mohsen Ghorbani 1, Behrouz Omarai 2, Bahram Shomalipour 3 1 Mohsen Ghorbani, Azad Islamic University of Kharg;

[email protected]

2 Professor assistant, Azad Islamic University of Kharg; [email protected]

3 Instructor, Azad Islamic University of Kharg; [email protected]

Abstract

The quality of human resources for secure and safe maritime affairs is most

important factor. Captain of the tugboat has assignments like as guidance,

berthing of larger vessels into a port and bringing larger ship from a port.

Working on an oil terminal, because of the risks and safety is a very

sensitive. Command responsibility of tugboat in the oil terminal is also

responsible jobs. Hence, investigation, evaluation and updating of

specified courses for tug boat’s commanders and their effect on oil

terminal safety enhancement is important. The statistical society of this

research includes the country's oil terminals tug boat’s commanders and

their senior officers which they are 50 persons. Using a questionnaire and

likert scale, the t-test, Kolmogorov-Smirnov test and regression analysis,

the data was analyzed and the following results were obtained. Education,

improve the safety of an oil terminal. A specified course for tug boat’s

commanders of oil terminal plays an important role in its safety promotion.

Also updating of specified courses for tug boat’s commanders will make

better response and decision of their leaders at crucial moments, and this

plays an important role in improving the safety of an oil terminal.

Keywords: Oil terminal, Education, Safety, Tugboat, Tugboat’s

commander



44 | P a g e

Identifying and Studying the Effects of Biofouling

on Concrete Docks in Khorramshahr Port

Mahdieh Boshagh1, Mohammad Ali Salari-Aliabadi*2, Babak

Doustshenas2, Ahmad Savari2, Masoumeh Jahanpanah3 1- MSc in Marine Biology, Faculty of Marine and Ocean Affairs, Marine Science and

Technology University of Khorramshahr

2- Department of Marine Biology, Faculty of Marine Science, Khorramshahr University

of Marine Science and Technology, Khorramshahr, Khuzestan, Iran.

3- Department of Ports and Maritime Khorramshahr

Abstract

The purpose of this study is to investigate the effects of Biofouling on the

structures and construction coastal of Khorramshahr port. Sampling was

carried out in January 2015 and June 2016 from the docks in the tidal zone

of the port with the assistance of a quadrature 15×15 cm diameter. After

identifying and investigating the Fouling species, 11 species belonging to

10 families, were calculated, which consisted of 79% Maxillopoda, 5%

Bivalvia, 3% Green algae, 4% Malacostraca, 3% Bryozoa, 1%,

Polychaeta. The dominant species was Amphibalanus amphitrite with

density of 4261 individuals per unit plane. The most damaged docks of the

port are by other environmental factors. And the effects of Biofouling are

very superficial and caused by the jaw excrementof the Isopoda and or the

Green algae from produced secretions and Bivalvia that make the digestion

of concrete structures. Due to the unevenness of the Barnacles' coating on

concrete surfaces, it not only prevents the insulation of these organisms,

but also exacerbates corrosion and erosion at the naked surfaces of

Barnacle.

Keywords: Identification, Biofouling, Destruction, Dock Port, Arvand

River



45 | P a g e

Declare SOS at Sea by Chaff Fibers

Mohammad Omid Kankash M.Sc. Passive Defense Engineering, Maleke-ashtar University of Technology;

[email protected]

Abstract

Chaff is lighted fiber with metal coating (usually aluminum) that scatters

the radar waves, after blooming on air. Chaff is used for countermeasure

in military equipment but we also can use it for rescue purposes such as

apply of chaff to declare SOS by vessels stuck and life rafts at sea. Actually

chaff in military usage is for deception of the enemy but in rescue

application is using for detection the SOS massage. The purpose of this

research is preparing the blooming chaff gun as one of the material in

emergency survival kit in the vessels and life rafts. This research is

presenting the rescue application of chaff by the blooming chaff gun as

one of the material in emergency survival kit in the vessels and life rafts at

sea. The radar scattering wave of chaff cloud is shown by CST’s

simulation software.

Keywords: Chaff, Radar wave reflection, Life raft, SOS.



46 | P a g e

Identification And Management Of Technical

Mechanisms In Implementing The Environmental

Component Of The Sixth Development Program In

The Industry

Sh.jahanbin1, h.amiri2 1 Master of Environmental Management, Head of Environmental Protection, Oxin Steel

Company, Khuzestan

2 Environmental Protection Expert, Oxin Steel Company, Khuzestan

Abstract

This study has been completed with the aim of evaluating and managing

the technical and strategic mechanisms in implementing and optimizing

environmental provisions, the Sixth Development Plan of the Islamic

Republic of Iran in the industries. The issue of environmental protection

has been identified and identified as an effective component of sustainable

development. Therefore, this research has been carried out in four

operational phases for effective environmental management of the sixth

program. In the first phase, documents, documents, international records

and industrial operational process were reviewed to dominate the research

team. In the second phase, effective technical mechanisms were identified

in the optimal environmental management of the sixth programUsing

expert surveys and AHP's analytical model. In the third phase, in order to

determine the roadmap for management at the macro level in the

industries, the mechanisms identified were evaluated using TOPSIS multi-

criteria decision making model. In the fourth phase, the conclusion was

made based on the output of the analytical models.

Keywords: Sixth Five-Year Development Plan, Environmental

Management, TOPSIS Model, AHP Model, Technical Mechanism



47 | P a g e

Harmful Algae Blooms Pollution and their effects

on marine Ecosystems

K. Roohani, E. Abdolalian, H. Fourooghifard, M. Moezzi, M. Zahedi,

M. Mortazavi

Abstract

Studies have shown that the most phytoplankton blooms usually provide

positive impacts on marine ecosystems. However, blooming of certain

species of phytoplankton may also have negative impacts which this type

of blooms is called Harmful Algal Bloom (HAB). Evidence suggests that

over the past few decades the frequency and duration of Harmful Algal

Blooms (HABs) have been increasing both nationally and worldwide.

Therefore, HABs can cause severe problems on marine organisms and

public health often via toxin transfer through the food web, tourism, or

mechanical damage on seawater desalination facilities. Several factors

such as environment, climate change and human activities contribute to

this phenomenon that can leave harmful impacts on animals and

ecosystem. This paper provides an overview of HABs occurring along the

Persian Gulf and Oman Sea coastline with special emphasis on the

Cochlodinium polycrikoides. A large and sudden outbreak occurred from

August 2008 to May 2009 and lasted for more than eight months. It caused

massive fish kills and limiting traditional fishery operations, damaging

coral reefs, impacting coastal tourism, and forcing the closure of

desalination plants and ultimately resulting in economic losses. Moreover,

this paper aims to provide brief results of research projects on C.

polykrikoides in the Persian Gulf of Iran.

Keywords: Harmful Algae Blooms (HABs), Cochlodinium polycrikoides,

fish kills, Persian Gulf



48 | P a g e

Heavy Metals (Cd, Cu,Zn, Pb And Hg) Monitoring

In The Green Sea Turtle (Chelonia Mydas) Egg

From The Northern Coast Of Oman Sea

Mahmood Sinaei 1*, Mohamad Talebi Matin 2, Mohammadreza

Alimoradi3 1Department of Fisheries, Chabahar Branch, Islamic Azad University, Chabahar, Iran

2Deputy of Marine Environment, Department of Environment, Tehran, Iran.

3PHD student, Department of Geography and Environmental Sciences, Hakim

sabzevari university.

Abstract

The green sea turtle (Chelonia mydas) has been a species of global concern

for decades. In this study, heavy metals ((Hg,Cd, Pb, Cu and Zn) were

measured three egg fraction from green sea turtle (C. mydas) nesting on

the northern coast of oman sea. There are no significant differences

between concentrations of heavy metals in eggs laid at different times.

Low concentrations of heavy metals support the information about green

sea turtles’ food resources being from the low levels of the food chain.

Further research is required concerning the effects of heavy metals on

green sea turtles, especially on the extent that they influence fetal

development of these turtles. Moreover, studies must be conducted on

hatch rates because environmental contaminants are maternally

transmitted.

Keywords: Chelonia mydas, heavy metals, egg



49 | P a g e

Investigation on Mercury pollution in seawater,

Plankton and Pony fish (Leiognathus bindus) of

Mahshahr Creeks Alireza Safahieh, Eshagh Hashemi, Mohammadali Salari Aliabadi,

Kamal Ghanemi

Abstract Located in the North West Persian Gulf, Khor Musa is an important water body

due to presence of various industries such as petrochemicals, fisheries, Ports,

marine shipping and oil installations. There is not enough information on the

trend of mercury variations in different food chains in this ecosystem. This study

aimed to evaluate the concentration of mercury in seawater and different parts of

marine food chain in Khor Musa (Mahshahr creeks), including plankton and

orange fins pony fish Leiognathus bindus. Sampling was carried out at five

stations including Petroshimi, Majidieh, Ghazaleh, Aboukhozair and

Doraghestan creeks in October and November 2012. After digestion of the

samples in the laboratory, the concentration of mercury was measured using cold

vapor method. The results showed that by moving from lower trophic level to the

higher level, concentration of mercury increases in living organisms. The lowest

concentration of mercury was measured in seawater followed by planktons (90

μg / kg). The concentration of mercury in fish (which is plankton feeder and is

considered as consumer) was 1090 μg / kg which was increased by about 10 folds

compared to plankton. The concentration of mercury in seawater, plankton and

fish samples from Mahshahr creeks was higher than what is reported for some

locations and available standards which is indication of mercury pollution in the

area. Significant correlation was found between the concentration of mercury in

seawater and its level in plankton (P<0.05). Similar positive and significant

correlation was found between the concentration of mercury in plankton and fish

(P<0.05), which could be noticed as an indication of mercury biomagnification.

Mercury concentration was higher in seawater of petroshimi and jafari creeks

which are closer to petrochemical installations and provides evidence for

contribution of the mentioned industry in mercury pollution. By moving far away

from petrochemical complex, the concentration of mercury in seawater and other

components reduced dramatically. The minimum amount of mercury was found

in seawater and components of Doraghestan and Aboukhozair creeks. Generally,

the trend of mercury concentration was increasing toward the higher trophic level.

More precise monitoring and more stringent management practices are needed to

prevent the release of mercury into the seawater of this region and continuous

monitoring of mercury in the region is recommended.



50 | P a g e

Assessment Methods of Overall Readiness of

Measures for Reduction of Green House Gas

Emissions of Ships

Pouyan Saeidi Moghaddam1, Emran Moradpour Tayebi2 1Master of Science in Maritime Transportation, Asalouyeh Ports and Maritime

Authority; [email protected]

2 Master of Science in Physical Oceanography, Asalouyeh Ports and Maritime

Authority; [email protected]

Abstract

Today, one of the main issues addressed by the Marine Environment

Protection Committee (MEPC) in the International Maritime Organization

(IMO) is the matter of the annex 6 of the Marine Pollution Convention

(MARPOL) and the IMO strategy to reduce Greenhouse gas emissions in

international shipping. Differences in the countries level of technology for

the production of low sulfur fuel and manufacturing of engines to obtain

an efficient combustion have led to not being fully compatible with this

annex of convention. In this paper, we consider methods to assess the

overall readiness of measures and outline areas where further action is

needed to increase the respective measures uptake with taking into account

three key factors of technological readiness, implementation time and

system readiness. By comparing proposed alternative resources, three

factors which are ease of implementation, cost of implementation and

impact of measures for the member states are explained. One of the

important measures for replacing of the energy resource is massive

production of non-fossil energy sources, structure modification of

propulsion systems and modification of the maritime transportation

infrastructure to supply fuel and carry out bunkering operations.

Keywords: Green House Gases, overall measures, technological

readiness, alternative energy source, infrastructure



51 | P a g e

Upcoming Environmental Regulations for Shipping

Industry

Reza RazaviSayad1, Marzieh shahrezaei2 1 MSC in Marine engineering, Sharif University / IRISL; [email protected]

2 MSC in IT Management, Alzahra University / IRISL; [email protected]

Abstract

With increasing environmental concerns from activists in this field, we

have witnessed the more activites from International Maritime

Organization (IMO) in reviewing the existing situation and introducing

new environmental regulations in the form of conventions and other laws.

These conventions are always one of the concerns of ship owners. Because

it is necessary for owners to have enough knowledge about conditions of

regulations before they are implemented in order to maintain the

seaworthiness and continuation of their fleet business activity, and to

anticipate and define sufficient measures to comply with its requirements

before the deadlines set. These measures usually involve restrictions and

costs for shipping companies, and the volume of changes and

improvements needed along with the market's unfavorable conditions

often tend to encourage ship owners to even scrap their ships. In this paper,

we have tried to consider the environmental regulations affecting the

shipping industry, its consequences for shipping market and the various

solutions proposed by the International Shipping community to comply

with these regulations.

Keywords: environment, Marpol convention, IMO, CO2, Sulphor,

shipping pollutants, fuel



52 | P a g e

Identification And Evaluation Of The Most

Effective Strategic Component Of HSE Culture In

Industries

H.Afraie1, S.A.jazaieri2, Sh.jahanbin3 1,2,3 Oxin Steel Company of Khuzestan,

Abstract

The aim of this study was to evaluate and manage the most effective

strategic components in the implementation and implementation of the

HSE culture in the industry. Always the risks and incidents of possible

accidents due to the lack of knowledge and culture of protecting the safety

and the environment have created irreparable consequences. So in this

regard, creating a HSE culture-building process in the industry and

creating awareness can significantly reduce the probable damage. This

research has been carried out to minimize injury damage in four

operational-research phases. In the first phase, due to the familiarity of the

research team with a process of industries as a case study, the rolling

industry affiliated to the marine industry was selected. In the second phase,

using the Delphi technique, an expert survey was conducted to identify the

strategic components for effective implementation of the HSE culture. In

the third phase, due to the optimal management and prioritization of

identified components for running the flow, they were placed in the AHP

hierarchical analytical model. Finally, improvements to the HSE culture of

excellence have been proposed and proposed in the industry.

Keywords: HSE culture, Strategic management, rolling industry, AHP

model



53 | P a g e

Routing of Systems with dust in Province

Hormozgan

Marziyeh Sisipoor1, Saeid Ranjbar2 1 Master of Science in Meteorology , Hormozgan Weather Center;

[email protected]

2 PhD in Climatology, Hormozgan Weather Center; [email protected]

Abstract

Gulf islands have always had dusty days during the year. In this

study dusting systems are studied. This study is based on meteorological

data of the synoptic stations of the Persian Gulf (wind, pressure, horizontal

visibility, temperature and relative humidity) also The study is based on

maps of the Earth's surface and the intermediate levels of the atmosphere.

Results showed The two systems play a significant role in creating dust in

the Persian Gulf. One of which is influenced by low pressure in the warm

seasons of the year and one of its type is High pressure in cold seasons.

The first type is the more frequent expansion of its activities from the west

and south of the Persian Gulf and it is affected by low thermal pressure

And it's more abundant in the western islands. The second type has a lower

abundance and durability compared to the first type and It is caused by

Siberian high pressure system. This system is specially for fall and winter,

And more is seen on the eastern islands.

Keywords: dust, Siberian high pressure, thermal low pressure.



54 | P a g e

Review and identify factors contributing to

accidents in the maritime vessels with GT ≥500

engaged in international and unlimited travels

Behzad Mohmedi1, Behrouz Omarai2, Majid Mousavi3 1MSC Student, Azad Islamic University of Kharg; [email protected]

2Professor assistant, Azad Islamic University of Kharg; [email protected]

3Instrucor, Azad Islamic University of Kharg; [email protected]

Abstract

Today, the creation of a safe working environment and the proper use of

tools and equipment, and in particular safety equipment, are essential

throughout the world, and mariners, boats and passengers are not excluded

from these rules. Accidents in various transport sectors are inevitable that

they annually bring a lot of losses to the players in this industry. The

maritime industry is no exception to this phenomenon, and as a rule,

incidents are occurring for a variety of reasons. Therefore, it is necessary

to minimize the occurrence of incidents and minimize the consequences

and costs of identifying the effective factors in the occurrence of accidents,

control and eliminate or minimize them, and play important role in the

development of the transportation industry. After investigating and

identifying the factors affecting the occurrence of marine accidents on

vessels engaged in international and unlimited travel, using the paired

comparison analysis method, the priority of marine events were assessed

in terms of the extent of the impact and continued on how to reduce the

incidence of marine events and institutionalize the culture of Marine

safety, considering the important role of human error in occurring marine

accidents and increasing the level of safety of ship personnel.

Keywords: marine events, international travels, human error, safety




55 | P a g e

The Effect of Anti-Folding Coatings on Biofinging

Phenomenon And Their Properties

Sara Jamshidizadeh1, Narges Amrollahi Biuki2 1PhD student of marine biology, Faculty of Marine Science and Technology,

Hormozgan University; [email protected]

2Assistant Professor, Department of Marine Biology, Faculty of Marine Science and

Technology, Hormozgan University; [email protected]

Abstract

Meeting and gathering sea creatures on immovable surfaces immersed in

seawater under the name of biofouling can inflict irreparable damage to

large, engineered marine structures. These annoying sticky creatures are

one of the most important problems facing the world's maritime industry.

Today, various biological and chemical methods are used to prevent the

accumulation and accumulation of sticky and annoying organisms. One of

these commonly used anti-fouling coatings is more of a type of paint.

Colored coatings are used in ships in a wide range of applications such as

corrosion of metals, ease of protection, better appearance, as a coating to

prevent the presence of unwanted intruders. The function of these colors

is as anti-folding, with release or biomass in the sea. The toxicity of these

biochemical agents is known as anti-folding properties of the paint and

therefore has limited its use. In this review, new methods have been

considered, including the use of nanoparticle-based coatings.

Keywords: Bio-fouling, Anti-fouling



56 | P a g e

Enter Marine Invasive Species Into The Persian

Gulf Identify Them In Biofolding Communities Seyedeh zahra seyyedi1 jalal mohamadi baghmolaei2 narges alipour

estahbanati3, ali ebrahim zadeh4 1Environment expert of Bushehr province of port and maritime organization,

[email protected]

Industrial safety expert of Bushehr province of port and maritime organization,

[email protected]

Crisis Management expert of Bushehr province of port and maritime organization,

[email protected]

Maritime Transportation expert of Bushehr province of port and maritime organization,


The arrival of non-indigenous and invasive marine species has increased

dramatically in most areas of the water over the last century, and the

evidence suggests that this trend continues. These species are considered

as one of the four major threats to the oceans as a result of various

contaminations. Invasive species, in addition to transferring water through

equilibrium, are also transported to the body of the ship through

biofouling. The most important law on water balances and invasive species

is the Convention on the Control and Management of Water Balances and

Waste Sediments, which, in accordance with Article 6 of the Convention,

all members should "promote and facilitate scientific and technical

research on water-balance management, and the effects of water

management Monitor the balance in the waters under their jurisdiction. "

Therefore, the introduction of standard and scientific methods in the study

of these species can be an introduction to the implementation of this

Convention, which has been in force since September this year. The

purpose of this research is to introduce a scientific method for studying

invasive species in Biofolding communities.

Keywords: Invasive Species, Persian Gulf, Marine Transportation,

Biofouling Communities.

Marine hydrodynamic Oceanography Marine meteorology Marine parameters measurement Hydrography

Oceanographicand meteorological Conditions6 Marine hydrodynamic Oceanography Marine meteorology Marine parameters measurement Hydrography

Oceanographicand meteorological Conditions6



57 | P a g e

Performance Evaluation of SWAN Model in Wind

Wave Modeling of the North of Persian Gulf using

CCMP wind data (Case Study: Farur Island)

Taheri, Hamid1; Kazeminezhad, Mohammad Hossein2; Yeganeh-

Bakhtiary, Abbas3 1M.Sc, School of Civil Engineering, Iran University of Science and Technology,

Tehran, Iran, [email protected] 2Assistant Professor, Iranian National Institute for Oceanography and Atmospheric

Science, Tehran, Iran, Email:[email protected] 3Associate Professor, School of Civil Engineering, Iran University of Science and

Technology, Tehran, Iran, Email:[email protected] Abstract

The importance of wind waves in the marine environment, especially in

coastal areas, has led researchers in recent years to identify the

characteristics of these waves using various methods. Among the several

methods, numerical modeling is one of the most widely used methods for

achieving the mentioned goal. That way in this study SWAN spectral-

numerical model was used in wind wave modeling in the north of the

Persian Gulf, and in particular near the Farur Island using CCMP wind

field data. The results of three different methods of modeling based on the

interaction between air and water, and the whitecapping were compared

with the measured data. It was determined that WAM4-AB method has the

best performance compared to the other two methods. At the end of the

study, the sensitivity analysis performed on the WAM4-AB whitecapping

coefficients as the best method of the first stage of modeling and the

selection of values 4e-5 and 2.25e-3 for the whitecapping coefficient and

the threshold saturation level. It reduces the error by 8.5% of the spectral

peak period and decreases by 10% of the underestimation of significant

wave height.

Keywords: Hindcasting, SWAN, Persian Gulf, Wind Input, Measured

wave data, Farur, Whitecapping

Marine Industries Conference th19Abstract Book of Iran d, Kish Islan –14 Dec. 2017 -11


58 | P a g e

Interacting Modeling of Two Submarine Intelligent

Robots for Exploring the Oceans

And Analyzing the Closest Optimal Distance in

Order to Support each other

Mehdi Farzaneh1, Mahmod Rostami2 1 Master of Engineering in Marine Engineering, Malek Ashtar University of Isfahan;

[email protected]

2 Assistant Professor, Faculty of Engineering, Isfahan Malek Ashtar University;


Today the basis of human exploration in the sea and in the oceans will be

submarine robots in different ways. With the prosperity of the maritime

industry and the presence of these small craft, the Marine Corps set a new

stage and The design and manufacture of these objects is increasing day

by day, so that all the photographs and filming, marine searches such as

the identification of the ships destroyed and rescued by the diver and etc

will be handled by these small but powerful bodies. These robots are

present in all parts of the sea and the oceans and even in the tough areas of

the sea where no human being has ever been exposed, so wait for these

ships to arrive in all the deep waters of the world. In this paper, the effect

of the interaction of two underwater robots with similar bodies intersection

with the underwater flow was investigated and evaluated for optimal

distance in depths. Then the forces imposed on both bodies were calculated

and evaluated and good matching was achieved. In the end with the

analysis of collisional currents and velocity components around the bodies,

there were significant results in the behavior of two or more intelligent

submarine robots at different distances.




59 | P a g e

Sea Level Variability Analysis In The Northwest

Indian Ocean

Nasrin Eshghi1, Amirhossein Barzandeh2, Fahimeh Hosseinibalam3,

Smaeyl Hassanzadeh4 1M.Sc. in Physical Oceanography, Physics Department, Faculty of Sciences, University

of Isfahan; [email protected]

2 M.Sc. in Physical Oceanography, Physics Department, Faculty of Sciences,

University of Isfahan; [email protected]

3 Associate Professor, Physics Department, Faculty of Sciences, University of Isfahan;

[email protected]

4 Professor, Physics Department, Faculty of Sciences, University of Isfahan;

[email protected]

Abstract

Considering the importance of regional sea level evaluation, sea level

anomaly, net surface heat flux and wind stress data have been obtained on

northwest Indian Ocean. According to trend analysis, sea level change in

the northwest Indian Ocean is increasing with the rate of 0.5 – 4 mm/year.

Although, the maximum trend of sea level changes is calculated about 8

mm/year around western coasts of India that show the coastal waves

effects on the sea level trend. Spatial leading modes and time-series for

each of three mentioned datasets are computed by using the EOF analysis.

Then, the frequencies of leading modes of EOF are recognized by the

spectral analysis. Correlation analyses between sea level anomaly and net

surface heat flux leading modes are support the thermal expansion effects

on sea level but, this effects in second leading mode (37.7%) is more

significant than first leading mode (48.9%). Also, correlation analyses

results between sea level and wind stress anomaly reveal that the nature of

wind blowing and stress on the northwest Indian Ocean cause the warm

water pumping downward and increasing in the depth of tropical

thermocline, so wind stress mostly leads positive sea level anomaly on this

area.

Keywords: Sea level, Heat flux, Wind Stress, Statistical analysis.







60 | P a g e

Inverted Barometer Effect on the Sea Level

Fluctuations of Arabian Sea

Amirhossein Barzandeh1, Nasrin Eshghi2, Fahimeh Hosseinibalam3,

Smaeyl Hassanzadeh4 1 M.Sc. in Physical Oceanography, Physics Department, Faculty of Sciences,


2 M.Sc. in Physical Oceanography, Physics Department, Faculty of Sciences,


3 Associate Professor, Physics Department, Faculty of Sciences, University of Isfahan;

[email protected]

4 Professor, Physics Department, Faculty of Sciences, University of Isfahan;

[email protected]

Abstract

It is very important to assess how the components affecting the regional

sea level anomalies. In general, sea level fluctuations can be decomposed

to three components including Barotropic, Steric and Inverted Barometric.

In the present study, the effect of inverted barometer was investigated on

the Arabian sea. For this purpose, datasets of sea level anomaly, sea

surface temperature, salinity and pressure were obtained and the annual

cycles of inverted barometer anomaly were calculated. According to the

interpretations, variability of inverted barometer effects on the sea level

fluctuations are seasonal with two cycles per year which the variabilities

are reversed from high latitudes to low latitudes. Inverted barometer

effects on the sea level fluctuations are significant along the whole months

except December. The range of positive values of non-barometer

component is more than negative values, across the region, that is revealed

the non-barometer component more contributes to positive sea level

anomalies. Distribution of non-barometer effects over Arabian sea show

that the non-barometer effects are originating and entering from south area

of Arabian sea due to interaction with Indian Ocean, and attenuating during

the year with deviation to the north and west.

Keywords: Sea Level Anomaly, Inverted Barometer, Arabian Sea.







61 | P a g e

Reproducing Tidal Dynamics and Energetics in

Chabahar Bay Considering Hydrodynamic

Classification of Bottom Roughness

Akbar Rashidi, Hasan Rabeie, Vahid Cheshmsiyahi

Abstract

In this study the modified version of non-linear 3D finite elements

hydrostatic QUODDY-4 model is used to investigate the sensitivity of

dynamics and energetics of tidal constituents M2, S2, K1 and O1 in

Chabahar bay to variability of bottom friction coefficient. This version

differs from the original version in that it has a module introduced to

calculate the bottom friction coefficient in the bottom boundary layer,

based on Kagan's resistance laws for different types of underlying surfaces

from hydrodynamic perspective. Model is run in two modes for each four

tidal constituents, considering constant and variable friction coefficient.

According to the results, the use of constant and variable resistance

coefficient does not make significant changes on dynamics and energetics

in the Chabahar bay. Comparison between the results of the simulations

and available observational data shows that the model has good accuracy

in reproduction of diurnal and semidiurnal tidal dynamics in the studied

basin.

Keywords: Chabahar Bay, QUODDY-4 Model, Bottom Friction

Coefficient, Barotropic Tidal Dynamics and Energetics



62 | P a g e

Numerical Study on added resistance of KCS in

different sea states

Ali Maleki1, Hossein Janbazi1*, Ali Ahmadi1, Ebrahim Alizadeh1 1- Shomal Research Institute of Defence Science and Technology, Malek Ashtar

University of Technology, Freydounkenar, Mazandaran, Iran

*P.O.B. 47515373 Freydounkenar, Mazandaran, Iran

Abstract

The prediction of the added resistance and attainable ship speed under

actual weather conditions is essential to evaluate the true ship

performance. In this study, added resistance of the KCS ship under random

waves in different sea states is estimated with numerical simulation. At

first, the numerical simulation of the ship model was carried out in calm

water, and then calculated added resistance and motions of ship under

regular waves in the design speed (Fr = 0.26). Results show that the

numerical results have a reasonable agreement with the available CFD and

EFD results. Finally, using the RAO and wave spectrum in each sea states,

the added resistance in the real sea is estimated under irregular waves.

Numerical methods based on URANS (Unsteady Reynolds-Averaged

Navier-Stokes) equations and STAR CCM+ software has been used. The

flow around the hull is incompressible turbulence flow (K-Epsilon

turbulence model) and to simulate the free surface flow around the body

VOF method is used. Also to improve and develop solution in region with

complex geometry (bow and stern) mesh cell size is adopted smaller than

other areas. The results of this study indicated the required margin of ship

performance, which should be considered in the early stages of design,

especially the choice of propulsion system.

Keywords: Added Resistance, Numerical Simulation, ship motions, KCS,

Star ccm+



63 | P a g e

Study of Numerical Model salinity prediction in

northern part of the Persian Gulf

Rokni, S.A. M.Sc of Meteorology, Space Physic Department, Institute of Geophysic, University of

Tehran, Iran Abstract

The northern part of the Persian Gulf due to climatic, military, politic

commercial and economic sensitive conditions, is important for its

countries bordering, For this reason, the study of water salinity pattern at

this basin has a high importance. wind stress is one of the most important

factors on water salinity pattern. The investigation of salinity pattern in

Persian Gulf especially in north areas based on the obtained results

illustrate a fixed trend. The minimum of salinity is in spring and the

maximum in fall. Thanks to Persian Gulf’s shallow nature salinity stems

two factors ones wind stress and second heat and humidity fluxes.

Minimum salinity in Iranian coasts especially in spring occurs due to

water penetration from oman sea into Persian Gulf. The investigation of

salinity trends in Persian Gulf especially in north areas based on the

obtained results suggests that salinity changes in this area follow a fixed

trend whose average during the whole year is 𝟑𝟗. 𝟏𝟐𝑔𝑟

𝑙𝑖𝑡⁄ that decreases

to𝟑𝟔. 𝟔𝟖𝑔𝑟

𝑙𝑖𝑡⁄ minimum in summer and rises to 𝟑𝟗. 𝟑𝟒𝑔𝑟

𝑙𝑖𝑡⁄ maximum

in winter. In this study, monthly salinity pattern is computed due to wind

stress through COHERENS, a three – dimensional sigma-coordinated

model, is employed to perform the simulation. The obtained results and

salinity field output show that salinity patterns extracted from

COHERENS Model and real amounts cosely match. Based on the results

of the study, it seems that the changes of existing winds in indian ocean

area and oman sea have an effect on salinity changes in Persian Gulf that

occurs through the flow of water from Hormoz strait into Persian Gulf.

Keywords: Persian Gulf, Salinity pattern, Wind stress, Heat flux,

Humidity flux, Oman sea, COHERENS model, Simulation,



64 | P a g e

Real-time prediction of Water Level Fluctuation

Using Adaptive Neuro-Fuzzy Inference System

(ANFIS) in the Caspian Sea

Masoud Dehbashi1*, Seyed Ali Azarmsa2, Mehdi Vafakhah3 1M.Sc., Faculty of Marine Sciences, Tarbiat Modares University;

[email protected]

2Associate Professor, Faculty of Marine Sciences, Tarbiat Modares University;

[email protected]

3Associate Professor, Faculty of Natural Resources, Tarbiat Modares University;


The Caspian Sea is the world’s largest enclosed basin of the water that

terms of oil and gas resources as well as its significant role in the areas of

shipping, trade, economy and its impacts on the neighboring countries

climate, has a very importance of international. On the other hand, rapid

variations in sea level, especially uplift the last few decades in sea water

surface had substantial social and economic consequences and caused

much damage in the coastal areas of Caspian Sea. Hence, evaluation,

modeling and prediction of water level fluctuations essential for the

comprehensive management of sea and coastal sustainable development in

this area. Therefore in the present research, models of various adaptive

neuro-fuzzy inference system (ANFIS) using the data measured monthly

sea water level in two coastal gauges of Anzali and Noushahr respectively

for 40 years and 14 years, in the of South Caspian Sea, have been

developed. Comparison of predicted values of water balance by final

models with measured values at each station and according to the statistical

indices of R2, RMSE and CE indicate that the adaptive neuro-fuzzy

inference system in learning and forecasting of complex and non-linear

behavior of the Caspian Sea is very good performance and can be

considered as a new approach for predicting the state of fluctuations in this

basin.

Keywords: Water level modeling, Caspian Sea, Adaptive Neuro-Fuzzy

Inference System, Neuro-Fuzzy, ANFIS




65 | P a g e

The Wind-Wave Climate of the Makran Coastlines

(B: appraising of Wave Watch III results)

Mahdi Shafieefar 1, Mohammad Bagheri 2, Mohammad Reza

Alahyar3, Mohammad Hosein Nemati 4,Ahmad Rezaee Mazyak 5,

Mohammad Reza Khosravi6 1 Prof. Marine Structures, Tarbiat Modares University; [email protected]

2 MSc. Marine Structures, Ports & Maritime Organization; [email protected]

3 MSc. Marine Structures, Ports & Maritime Organization; [email protected]

4MSc. Physical Oceanography, Ports & Maritime Organization; [email protected]

5 MSc. Marine Structures, Pars Geometry Consultants; [email protected]

6 MSc. Marine Structures, Pars Geometry Consultants;

[email protected]

Abstract

It is important to understand the waves' climate to plan and design marine

structures in coastal zone. In this study, we have evaluated the results of

these models by the use of field measurements and the results of the global

models, ERA-Interim and Wave Watch III (WWIII). In the following, by

classifying the characteristics of the waves into three chapters, before

Monsoon, Monsoon and after Monsoon, the strengths and weaknesses of

these models are discussed for the future studies. The evaluation and

results of global models led to the provision of criteria for controlling wave

modeling in this area. The results show that the WWIII model has a better

performance in ocean wave modeling and ERA-Interim model results have

a higher quality in western wave modeling.

Keywords: Wave Watch III, ERA-Interim, Wave climate, Makran

Coastline.



66 | P a g e

Tropical Cyclone Impacts on the Pattern of Ocean

Currents in Makran Coastal Region

Case study: Tropical Cyclone Ashobaa

Ali Ghasemi1, Mohamad Bagheri2, Mohamad Hosein Nemati3,

Mehdi Shafieefar4, Ahmad Rezaei Mazyak5 1M.Sc. Marine Structures Engineering, Pars Geometry Consultant;

[email protected]

2 M.Sc. Marine Structures Engineering, Port and Maritime Organization;

[email protected]

3 M.Sc. Physical Oceanography Engineering, Port and Maritime Organization;

[email protected]

4 PhD Marine Structures Engineering, Tarbiat Modares University;

[email protected] 5M.Sc. Marine Structures Engineering, Pars Geometry Consultant; [email protected]

Abstract

Generally, ocean currents are generated by winds, density differences in

water masses caused by salinity and temperature variations, ocean floor

topography and earth’s rotation and gravity. These currents move through

the ocean and control the oceanic climate. In the present study, the

generation and effects of Tropical Cyclone Ashobaa on the Makran coastal

region was studied. On this account, the study was divided into three main

sections, including analysis of field measurements, satellite images

processing and investigation of Hybrid Coordinate Ocean Model

(HYCOM) results. Field data analysis showed that sea surface temperature

and current speeds were both increased during Tropical Cyclone Ashobaa

occurrence, while satellite images processing indicated that water surface

temperature get colder at the same time. Investigation of HYCOM model

results clarified that while the storm was occurred, warm water flowing

was moving through Indian and Pakistan coasts and finally, Makran

coastal region was affected by the warm water.

Keywords: Tropical Cyclone Ashobaa, Makran coastal region, Field

measurements, Satellite image, HYCOM



67 | P a g e

Investigation of Sediment Transport Process at

Lengeh Port By CERC Model Kamran Lari1 , Mohammad Taghi Sadatipour2, Mostafa

Mamaghani3 1 Iecturer , Tehran Shomal Islmic Azad University; [email protected]

2 Assistant Professor , Tehran Shomal Islmic Azad University;

[email protected]

3 Msc , Port & Maritime Organization,Oceanic And Marine Science-Hydrography ;

[email protected]

Abstract

One of the important problems in ports is sedimentation in access channels

and variations of coastline and sea bed, So that dredging for the optimal use

of port has considerable price. One of the most important problems in coastal

engineering is sediment transportation; because sometimes the lack of

residual materials show the existence of erosion in the region and in other

points association of sediment , indicates sedimentation. In this research at the

first , on the basis of field observations, it was found that the coasts in the east

of Bandera Lengeh are very rocky and mountainous in parts, and the role of

an uncaused echo system (fen) in the trap The control of seasonal precipitation

floods in the upper reaches of the region indicates that the sediment

production capacity in the region is negligible and, according to these

evidences, it can be concluded that the amount of sediment transmitted from

the land to the sea They are inconsiderable. Then, comparing two aerial

images with a nine-year interval, coastal variations in Bandarlenghe area has

been evaluated, which shows that the modal line, and consequently the coastal

pattern, has not changed significantly over these two years and then using

LITPACK software related to DHI, and applying waveguide, tidal flow and

sediment gradient through sampling and output of ECMWF and MIKE21-SW

models ,to model sediment and coastline In the study area, the net result of

the sediment transport rate obtained from the LITDRIFT model, taking into

account the wave and current of 6186 cubic meters per year, is low, indicating

that the coasts around Lengeh port There has been no significant change over

the past years. Due to the low sedimentation rate of the studied area, about 2

millimeters per year and access to infrastructure facilities; this is one of the

most optimal places to constrauct or develop a port in the north of the Persian

Gulf.

Keywords: Sedimentation ,Lengeh Port , Wave & Current ,CERC

mathematical models , LITPACK




68 | P a g e

Assessment of The Distribution of Heavy Metals

(Nickel and Vanadium) in The Southeastern Ports

of The Caspian Sea Mehrnaz baniamam1,kazemdarvish bastami2, Ali sheykhbahaei3

1Mehrnaz baniamam,Agriculture planning,Economic and rural development Institute;

[email protected]

2kazem darvishbastami, National Oceanic and Atmospheric Research Center;

[email protected]

3Ali sheykhbahaei, National Oceanic and Atmospheric Research Center,

[email protected]

Abstract

In this study, in order to assess the ecological health status in the south East ports

of Caspian Sea, The oil pollution and heavy metals of macrobentose and their

relationship with environmental stress were investigated.Sediment samples were

collected using a Van Veen grab at 12 sampling points, seasonally during 2015-

2016,In this study, the mean (range) of nickel in sediment samples (65/1 ± 19/18)

to (49/2 ± 23/41) and vanadium ranges between (96/1 ± 34/15) to (53/9 ± 13/90)

were recorded in four seasons.Chrosocal-Valis test results showed that metal

concentrations were significantly different among different stations(P <0.05), so

that the lowest concentration of nickel and vanadium in the Turkmen stations and

the maximum concentration observed in Fereydunkenar station .general pattern

of distribution of metals at various stations on Fereydunkenar> Noshahr> Amir

Abad> Turkmen. Chrosocal-Valis analysis showed significant differences

between seasons have concentrations (P <0.05) as the nickel distribution patterns

in different seasons as summer> autumn> spring> winter distribution patterns of

vanadium as Fall> Winter> Summer <spring. Igeo pollution index for nickel and

vanadium in Fereydunkenar stations respectively 1/2 and 2/2 (moderate

pollution) and other stations less than 2 (low pollution) was observed.The

geochemical contamination index (Igeo) of metals was used to determine the

severity of the contamination in the study area because the geochemical

properties of heavy elements cause different reactions in the physico-chemical

environment of the environment, due to the establishment Long-term and

environmental impacts are considered as environmental pollutants Do not These

elements are naturally occurring in geogeneous origin, as well as through human

activity and artificial and anthropogenic origin (Shajan, 2001). The process of

changes in this metal index (nickel) was from low to moderate molar standard

and the process of change The index of this metal (vanadium) shows a low to

high Muller standard.

Keywords:Ni, V, Geochemical Index Igeo( Igeo), Caspian Sea.


Design methods Ship hydrodynamics Ship maintenance and repair Recycling methods Equipment, machinery and propulsion systems

Ship design and construction7 Design methods Ship hydrodynamics Ship maintenance and repair Recycling methods Equipment, machinery and propulsion systems

Ship design and construction7



69 | P a g e

Investigation Of Side Hull On Roll Of Trimaran

Surface Ship

Ali Maleki 1, Ghader Mirzaei2*, Ali Ahmadi3, Amin Mohammadi4,

Ebrahim Alizadeh5 2*Shomal Research Institute of Defence Science and Technology, Malek Ashtar


*P.O.B. 47515373 Freydounkenar, Mazandaran, Iran, [email protected]

Abstract

Although experimental results have higher accuracy but numerical

methods have been considered due to lower cost and proper accuracy. With

the development of numerical methods, used and affecting factor of this

method is one of the important research topics of ship hydrodynamic. In

this paper, the effect of side hull has been investigated on trimaran surface

ship. For this purpose the STAR-CCM+ commercial software is used to

solve the viscous and incompressible flow field. Turbulence model is K-ε

standard . The same mesh, boundary conditions, and solution techniques

are used for main hull and trimaran surface ship. For validation of

numerical metod, model test result of DTMB5512 is used and accuracy of

solution method is approved. Result of simulation is compared for main

hull and trimaran and the effect of side hull on roll decay is calculated. The

side hull has a great influence at period of roll decay on trimaran due to

distance between side hull and main hull.

Keywords: Trimaran, Roll, Roll Decay, Hydrodynamic, Star-CCM+

Marine Industries Conference th19Abstract Book of Iran d, Kish Islan –7 14 Dec. 201-11


70 | P a g e

Simulation of Merchant Ship Maneuvering by

MMG Method

Mohammadreza Javanmardi1, Mohammadreza Fathi Kazerooni2, Mohammad Saeed Seif3, Mahdi Kebriaee4

1Adjunct Assistant Professor, Center of Excellence in Hydrodynamics & Dynamics of

Marine Vehicles; [email protected]

2PhD Candidate, Center of Excellence in Hydrodynamics & Dynamics of Marine

Vehicles; [email protected]

3Professor, Center of Excellence in Hydrodynamics & Dynamics of Marine Vehicles;

[email protected]

4Msc, Ports & Maritime Organization; [email protected]

Abstract

The steering and maneuverability are the main features of a vessel. By

increasing ports’ traffic and waterway limitations, an adequate prediction

of ship maneuvering at the beginning steps of designing is essential.

Precision of maneuvering simulation result depends on the input data

accuracy. A practical model for vehicle maneuvering simulation for the

ship design centers is necessary. In this paper a mathematical model based

on Maneuvering Modeling Group for commercial vessel with propeller

and rudder is presented and hull, propeller and rudder hydrodynamic

forces are taken into the account. A software was developed which is able

to predict commercial vessels’ maneuvering. The simulation results were

compared with full scale vessels trials and the accuracy of results were

validated.

Keywords: Ship Maneuvering, Simulation, MMG Model, Trial Test



71 | P a g e

Propulsion Performance Of Spanwise Flexible

Wing Using Unsteady Panel Method

Saeed Najafi PhD of Marine Engineering, Sharif University of Technology,

[email protected]

Abstract

In this paper propulsion performance of a spanwise flexible oscillating

wing which is broadly similar to undulation of fin fluke is investigated.

The geometry of the fluke was simultaneously undergoing of three

harmonic oscillating motion while surging with constant velocity. The

effect of deflection phase angle, flexibility parameter and wing tip

deflection amplitude in thrust coefficient and swimming efficiency was

studied. A low order unsteady panel method coupling with a time stepping

algorithm for free wake alignment is implemented into a computer

program to estimate propulsion efficiency of lifting bodies. This is an

efficient method to accelerate computational speed via reducing the order

of problem from R3 to body boundaries. The results present the significant

effect of phase angle in propulsion characteristics of oscillating fluke.

Keywords: propulsion performance, fin whale fluke, flexible wing, panel

method, wake alignment




72 | P a g e

Effect of Cavitating-bubble Generators on the

Dynamics of Unsteady Cloud Cavitation

Ebrahim Kadivar1, Khodayar Javadi2 1University of Duisburg-Essen, Institute of Ship Technology, Ocean Engineering and

Transport Systems; [email protected]

2Sharif University of Technology, Department of Aerospace Engineering, Flow

Control Research Lab; [email protected]

Abstract

The present paper is devoted to the 3D numerical study of unsteady cloud

cavitation around the CAV2003 benchmark hydrofoil using a passive

cavitation controller method called cavitation-bubble generator (CGs). We

investigate this passive controller on the hydrofoil surface to affect the

whole processes of vaporization, bubble generation and bubble implosion.

Firstly we simulate the unsteady cavitating flow around the hydrofoil

without CGs using a Partially-averaged Navier Stokes (PANS) method.

The turbulence approach is coupled with a mass transfer model which

implements to an open source finite-volume package. Then we tested

different sizes and angles of CGs on the hydrofoil surface. The results of

an appropriate design of the CGs shows a significant decrease of the

maximum length of the attached cavity and a large decrease of wall-

pressure fluctuation intensity on the hydrofoil surface.

Keywords: Cloud cavitation, passive flow control, Cavitation Control



73 | P a g e

Fluid Structural Interaction Analysis Of The Water

Entry Phenomenon In Two-Dimensional Cross

Section Of Twin-Hull Ship In Regular Diagonal

Waves

Mobin Masoumi, Mahdi Tousefifard, Abbas Ramiar

Abstract

Investigation of fluid structure interaction for a twin hull vessel under the

effects of regular diagonal waves is the mail objective of the current study.

For this purpose, various numerical methods have been implemented and

a logical relationship between strip theory, computational fluid dynamics

and finite element methods have been created using Tribon, OpenFoam

and ABACUS softwares. Initially the interaction between the elastic

wedge water impact is verified, until a standard solution with optimized

answer for the ship hall water entry problem is found. In ship water impact

problems, dynamic effects and ship seakeeping behaviors are very

important. Strip theory has been used in Tribon software to estimate the

slamming probability and vertical velocity at forward sections of ship.

Finally, using the mentioned methods, stress and strain values can be

obtained in structure. It is important to know the values of these variables

in order to design the instruments.

Keywords: Fluid structure interaction, Computational fluid dynamics,

OpenFoam, ABACUS, Tribon



74 | P a g e

Fuzzy Modeling Centre of Buoyancy Modification

and Optimization of Seakeeping Functions Using

Genetic Algorithm

Mohsen Khosravi Babadi1, Pezhman Mazaheri2, Hasan Ghasemi

1PHD Marine Engineering, Amirkabir University of Tehran; [email protected]

2MSC Industrial Engineering, Amirkabir University of Tehran;

[email protected]

Abstract

In recent years, more attention has been paid to the seakeeping forecast.

As fast as floating ships and vessels, the speed of the boat increases, the

significance of these calculations increases. The purpose of this study is to

Modify the Floating Point Factor (KB) so that the least impact on other

hydrodynamic coefficients of floating in its modeling is applied. For this

purpose, by designing a fuzzy system, the floating body lines were

modeled at three angles of 120, 150, and 180 degrees in the range of KB

2% + and 2% coefficients, and the floating geometry lines were made for

each Modification and the Seakeeping functions (including Heave, Pitch,

Roll, AddedResistance, and MSI) Each body shape is calculated at each of

the angles. Then, the changes of each of the Seakeeping functions were

calculated using the mathematical modeling of polynomial fitting and the

optimal KB value was calculated using the multi-objective optimization

method of the genetic algorithm. The method presented in this paper is

implemented and tested on a Cruise ship, and the results obtained from

simulating Hull form lines in optimal KB and comparing its Seakeeping

function with the original model proved the efficiency of the proposed

method.

Keywords: Seakeeping Optimization, Genetic Algorithm, Hull Form

Fuzzy Modeling, KB, Cruise



75 | P a g e

The Formation of A Surface Vessel Bulbous Bow

By Using A Flexible Forming Method

Ghaum Noormohamadi1, Majid Elyasi2, Mohammad Javad Mirnia3 1Faculty of Mechanical Engineering, Babol Noshirvani University of Technology;

[email protected]

2Faculty of Mechanical Engineering, Babol Noshirvani University of Technology;

[email protected]

3Faculty of Mechanical Engineering, Babol Noshirvani University of Technology;

[email protected]

Abstract

The body of surface vessels is made up of intricate and special curvatures

to maintain balance, fight against drag, and avoid collision damage and

many other engineering considerations. In the construction of the surface

vessels body due to the complexity of the curves and the large dimensions,

the use of conventional forming methods is limited to more integrated

body production. So these parts are produced by connecting smaller

sections to each other. In this paper, a new method for forming a bulbous

bow is provided which has the ability to produce workpieces integrated.

For this purpose, a new die that has high flexibility in the production of

various parts was designed. This die includes side-by-side pins which are

adjustable height. By creating the proper arrangement and adjusting the

height of the pins, different geometries can be created. In order to form,

the sheet is closed on a die which mounted on a numerical control device,

and a spherical head tool connected to the device, on a continuous path

that is part of the geometry of the piece, moved in contact with the sheet

and formed the sheet. The results of this study showed the repeatability in

forming, high dimensional accuracy, and the speed of the new process.

Keywords: Surface vessel body, New forming method, Flexible forming,

Complex workpiece forming



76 | P a g e

Numerical simulation of side forces acting on

double-stepped planing hull at asymmetric

condition

Saeid Panahi1, Parviz Ghadimi2 1M.Sc. of Hydromechanics, Dept. Maritime Eng., Amirkabir University of Technology;

[email protected]

2Full Professor of Hydromechanics, Dept. Maritime Eng., Amirkabir University of

Technology; [email protected]

Abstract

The current paper numerically investigates the side forces acting on

double-stepped planing craft in both zero and non-zero heel angles. To

analyze the problem, the Navier Stokes equations using Finite Volume

Method (FVM) are solved. Also, Volume of Fluid method is exerted for

modeling free surface effect. Due to turbulent nature of flow around the

hull, the k-ε model is applied. Planing craft is considered in 0, 5 and 10

heel/drift angles. Mesh study has been conducted and in order to assess the

validity of the presented simulation, results of the current simulation are

compared against Dominic Taunton’s experimental data and good

agreement is displayed. The aim of the current study is to compute side

forces acting on double-stepped planing hull at asymmetric condition. The

computational results suggest that, an increase in drift angle may lead to

an increase in yawing moment at constant heel angles. Also, the computed

contours of the wetted surface area, water spray, and wave pattern around

the hull as well as the sway force coefficient are presented and analyzed.

Keywords: numerical modeling, double-stepped planing hull, yawing

moment, water spray, wave pattern




77 | P a g e

Modeling of Catamaran vessel by Hydro-Elastic

Method

Ibrahim Soleimani1, Mohammad Saeed Seif2, Mohammad Reza

Tabeshpour3 1 Ph.D. student, Department of Mechanical Engineering, Sharif University of


2 Professor, Department of Mechanical Engineering, Sharif University of Technology;

[email protected]

3 Assistant professor, Department of Mechanical Engineering, Sharif University of


Abstract

The use of new bodies in today's vessels is very useful for responding to

ever-increasing needs. Realizing this, it will facilitate the achievement of

goals such as increasing the stability and speed of the vessel. One of these

emerging body forms is Catamaran vessels. This type of vessel has two

underwater bodies and an intermediate deck. One of the most important

steps in designing vessels is to find loads on their bodies during their

lifetime and time of specific operations. These times have different causes,

one of the most important of which is the waves. The tensions and

deformations created in the vessel due to these loads can be effective in

designing sheets and reinforcements and other structural elements of the

vessel. This paper describes the process of modeling the hydro-elastic

catamaran vessel step-by-step, which includes numerical analysis in

software and experimental testing in towing tank.

Keywords: Catamaran vessel, Hydrodynamic analysis, Test model,

Structural analysis, Software modeling, Segmented model



78 | P a g e

Designing, Numerical Simulation And Dynamic

Analizing Of Modern Semi-Swath Two Body Vessel

Karim Akbari Vakilabadi1, Hossein Bardide 2,Gholamreza

Omidirad3 1 Department of Mechanic Engineering Faculty, Imam Khomeini Maritime University;

[email protected]

2 Department of Mechanical Engineering, Babol Noshiravani University of Technology

; [email protected]

3 Msc student, Imam Khomeini Maritime University; [email protected]

Abstract

The main goal in designing two body high speed vessels is the

development of a vessels with proper seakeeping in frontal impact with

waves in high speed traveling. This issue gain more importance when pitch

motion, immerging the vessel in the water and structural dynamic loads

in two body vessels with small waterline including swatch vessel increase

suddenly in harsh sea conditions and high travel speed in comparison with

one body vessels. This issue threat the safety and welfare of the crews of

this vessel. Several solutions suggested for improving the performance of

swatch vessels in high speed. One of these suggestions is modifying the

body form of the vessels. In this report, a modified body of a swatch

buoyant which called semi swath has been simulated and required

hydrodynamic studies include predicting the strength, the forces acting on

the body and heave and pitch motions on this body has been performed.

Hydrodynamic reaction of the two bodies and effect of these bodies on

each other has been obtained by simulating a semi swath vessel and

comparing it with a full vessels. Effect of the distance between the two

body on the strength of the vessel and on the dynamic movements of the

vessels has been investigated.

Keywords: Semi-SWATH vessel, Computational fluid dynamics, Hull

resistance coefficient, Heave and Pitch motions




79 | P a g e

Review of structural integrity Monitoring

Approaches: from Traditional NDE to In-situ

Structural Health Monitoring

Abdollah Rahmani MS Graduate of Mechanical Engineering of Tarbiat Modares University, Tehran.

[email protected]

Abstract

In Present work first necessity of inspection work to achieving most

important object of structure i.e. safety is explained then traditional non-

destructive inspection and recent in-situ structural health monitoring

approach as two generic monitoring approaches presented and capability,

features، and present technology of each approaches explained

respectively. With the focus of present work on latter approach, in third

section two case study of implementation of second approach in marine

application followed. At the end the final comparison between these two

approaches is done and vision of monitoring technology in marine section

expressed.

Keywords: Safety, Non-destructive inspection، In-situ structural health

monitoring



80 | P a g e

Achieving suitable form of trimaran surface vessel

side hulls to improving of dynamic behavior

A. Maleki1, A.Mohamadi2, Gh.Mirzaee3, E.Alizadeh4 1 M.Sc., Department of Marine Eng, Malek Ashtar University of Technology

2 M.Sc., Department of Mechanical Eng, Malek Ashtar University of Technology

3M.Sc., Department of Marine Eng, Malek Ashtar University of Technology

4 Associate Professor, Department of Mechanical Eng, Malek Ashtar University of

Technology

Abstract

Design and construction of multi-hull vessels is one of the important goals

of the future of surface vessels. In this way improving the dynamics

behavior of these vessels using appropriate design techniques can have a

profound effect on the road ahead. Side hulls in multi-hull vessels have a

lower percentage of total resistance but with proper design, they can play

a significant role in reducing overall resistance and improving dynamic

behavior. In this paper using numerical simulation of a trimaran surface

vessel movement with different forms of side hulls is investigated. Side

hulls in tree forms of inboard, outboard and symmetric are placed in close

up main hull and in each case, the overall resistance, trim and sinkage are

calculated. Simulations are performed using of star CCM software and

solving RANS equations in calm water and different Froud numbers and

results compared with experimental data. According to the results, side

hulls with symmetric form have better hydrodynamic behavior and less

overall resistance.

Keywords: Surface vessel, Trimaran, Resistance, Trim, Sinkage,

Hydrodynamic behavior.



81 | P a g e

Design and Simulation of an Improved Three-

Phase Multilevel Inverter for use in Electrical

Propulsion Vessels

Mohammad Afiyatlou1, Seyed Hossein Hosseini2, Mehran Sabahi3 1Power Electronic Student, University of Tabriz; [email protected]

2Power Electric P.H.D, University of Tabriz; [email protected]

3 Power Electric P.H.D, University of Tabriz; [email protected]

Abstract

Electric propulsion system based on the principle of controlled electric

power. Each electrical system is based on the fundamental parts; that is

power generation and consumptions. The motors uses from electrical

drivers in electrical propulsion systems. Harmonic topics at the high power

levels produces many problems as torque impulse and power losses in the

motor, so to mitigate the harmonic adverse effects are provided an

improved multilevel inverter circuit in this paper to drive high power

engines. Analyze of output waveforms done with connecting ohmic-

inductive loads and induction motor to inverter output in PSCAD

Software.

Keywords: Electrical Propulsion System, Ship Propeller, Multi-Level

Inverter, Constant V/f Control



82 | P a g e

Corrosion behavior of aluminum vessels in the

presence of silane and cathodic protection

KarimAkbari Vakilabadi1, Abbas Hasanabadi2 1Assistant Professor, Marine Faculty of Imam Khomeini Maritime University;

[email protected]

2Msc, Marine Faculty of Imam Khomeini Maritime University;

[email protected]

Abstract

In this research, in order to evaluate the performance of aluminum alloy in

radial boats exposed to sea water, the effect of speed on the corrosion

process of this alloy under cathodic polarization under flood conditions

using rotary cylinder electrodes by scanning electron microscopy and

electrochemical impedance spectroscopy in chloride Sodium 3.5% has

been investigated.

The results of the studies show that in the studied conditions, the main

process of rupture is local corrosion that occurs around iron-containing

cathode-intermetallic particles as a result of the concentration of

resuscitation reactions on these metals and severe alkalization around

them. . Finally, the results showed that under static conditions the

corrosion resistance decreases for the cathodic polarization sample, with

the growth rate of the cavities dropping only at -0.9 volts. On the other

hand, in silane conditions, with the passage of time, the 1-volt potential

improves corrosion resistance.

Keywords: Aluminum alloy, cathodic polarization, rotary cylinder

electrode, corrosion





83 | P a g e

Determining The Service Speed of The Ship in The

Real Sea Condition Hamid Alirezaloo1, Azadeh Chamkoori2, Ali Montaserkouhsari3,

Hassan Ghassemi4 1M.Sc of Naval Architecture- Ship Hydromechanics, Imam Khomeini Naval University

of Noshahr; [email protected]

2 Student of M.Sc of Naval Architecture-Ship Structure, Amirkabir University of

technology-Tehran; [email protected]

3 M.Sc of Naval Architecture-Ship Hydromechanics, Ports & Maritme Organization of

Iran; [email protected]

4Professor of Maritime Engineering, Amirkabir University of technology-Tehran;

[email protected]

Abstract

Obtainable Service speed of a ship in real weather conditions when sailing

on a given shipping route, is one of the major parameters which have great

impact on ship operation costs. so far, approximation methods of service

speed based on “service margin”, have been less exact. In this thesis a new

method based on additional ship resistance dependent on mean statistical

parameters of wave and wind occurring on a given shipping route, is

presented.In order to obtain the service speed, first resistance, thrust and

torque of a specific propeller is calculated and then by using the charts, it

is estimated. The hull of the ship is S-175, modeled and its calm resistance

is calculated in Maxsurf software using Holtrop approach. For additional

resistance for Bandar-Abbas to Japan route, which is devided by several

parts- special altitude for each zone is observed and then with specifing

wave spectrum of those zone with help of Motion module of Maxsurf, that

parameter is obtained. In this paper, the effect of variations in geometrical

characteristics (ratio of pitch, ratio of chord and number of blades) of the

propeller has been considered on the service speed of the ship. For this

purpose, tried to study the role of geometrical variations of the propeller

blade (NACA66) on the service speed of the ship, based on the blade

element theory.

Keywords: additional resistance, service speed, wind, wave, shipping

route.



84 | P a g e

The Influence of Friction Stir Processing on

Corrosion Behavior of CB7-Cu Stainless Steel Used

in SPP propeller in Sea Water

Mahdi Mirzaiee2, Hossein Olia1 , Abdoulmajid Eslami3, Fakhreddin

Ashrafizadeh4 1Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran,

[email protected]. 2 PhD. Student, Advanced Materials Research Center, Materials Engineering

Department, Najafabad Branch, Islamic Azad University, Iran. [email protected]

3Assistant Professor, Department of Materials Engineering, Isfahan University of

Technology, Isfahan, Iran, [email protected]

4 Professor, Department of Materials Engineering, Isfahan University of Technology,

Isfahan, Iran, [email protected].

Abstract

CB 7-Cu steel is a hardening martensitic stainless steel; its hardening

mechanism is characterized by copper-rich sediments. In this research, the

Friction Stir Processing, at a rotational speed of 600 rpm and a linear speed

of 80 mm / min, was used by a non-consumable tool made of rhenium

tungsten carbide with a shoulder diameter of 20 mm and a pin in the form

of an incomplete cone with a height of 1 millimeter and a large diameter

of 5 millimeters and a small diameter of 4 millimeters. After the Friction

Stir Processing, microstructural and electrochemical corrosion studies

were performed. The microstructural studies by optical microscopy and X-

ray diffraction showed that the application of the friction process caused

fine-grained and axial grains in the disturbance region, which was due to

dynamic recrystallization, and also the phase shift from martensite to

austenite. The results of electrochemical corrosion showed improved

corrosion resistance in the perturbation region than the base metal.

Keywords: Friction Stir Processing, Stainless steel, Corrosion.

http://eslamim.iut.ac.ir/







85 | P a g e

Numerical design of a muffler, in order to reduce

OM457LA diesel engine exhaust noise

Aliahmad Barati 1, Hassan Habibi Moghaddam 2 1 Mechanical Engineering, [email protected]

2 Mechanical Engineering, [email protected]

Abstract

Diesel engine is one of the most important propulsion in different

applications like automotive, marine, power generation, etc. Noise

emission of this engine causes a lot of problems and has different sources,

paths and emission manner, which demand different methods to control

engine overall emitted noise. Since exhaust system has a major part in

engine overall noise, in this work design of a muffler for non-silenced

exhaust system of OM457LA diesel engine has been carried out using

integrated simulation of combustion, gas exchange, heat transfer and noise

emission in GT-Suite. Results of this simulation has been validated by

experimental data and has been employed to execute a sensitivity analysis

for optimization of design parameters. Designed muffler is a passive, three

chamber one, which has a circular cross section. As an example, results

indicate that for rated speed of 1800 rpm, using each suggested little and

big mufflers the overall exhaust system emitted noise, could be reduced

from its initial value of 114 dB, to 92.8 and 87.5 dB respectively. Also for

other speeds, remarkable reduction of noise could be achieved. All of

these noise reduction has been achieved with sacrificing just about 1% of

power.

Keywords: Diesel engine, Noise control, Exhaust system, Muffler, Design



86 | P a g e

Hydrodynamic Optimization of Hull Ship Form

Using Dynamic Fluid Calculations (CFD) Mohsen Khosravi Babadi1 ,Pezhman Mazaheri2 , Abbas Reihani3,

Hasan Ghasemi 1PHD Marine Engineering, Amirkabir University of Tehran; [email protected]


[email protected]

3MSC Industrial Engineering, Alborz University ; [email protected]

Abstract

In many CADD computing tools (CASD), NURBS computing has been

introduced. To produce different body forms, a large variety of ship hull

forms can be obtained. In the case where only part of the body needs to be

optimized, the optimized area can permanently link the main body without

degradation By maintaining the operating system, various geometric

constraints can be easily implemented in the optimization process. In

addition, a NURBS based networking tool is designed to break the body

form and produce the mesh needed to simulate CFD flow around the body.

The hydrodynamic design of the ship consists of several steps, from the

initial design and the initial stage to the final design. Measuring the tension

and / or ultimate tension. Although SSF is a highly efficient CFD tool, the

need to optimize the body shape for several design speeds by reducing

computational time has led to the development of an approximated model.

The response level of a problem that is limited to a single target function

is directly evaluated by CFD. Based on the response level, the variable

analysis function (ANOVA) is designed to analyze the importance of each

of the problem variables. In order to obtain the optimal body form response

level, optimization using evolutionary algorithms has been used.

Computational tools developed in this paper, integrated CASD, CFD and

provide optimization techniques to optimize hydrodynamic guarantee the

hull form geometry. The application of the proposed method in a real ship

(Wigley) suggests that the current tool is an effective and inexpensive way

to optimize body shapes at the initial design stage. It also provides useful

analysis of the importance of different design variables.

Keywords: NURBS ، Optimizing Hull Form ، Hydrodynamics ،CFD




87 | P a g e

A Study on Thrusters’ Failure Effects on Open-

loop and Close-loop Behaviors of Remotely

Operated Vehicles (ROVs)

Mojtaba Afshar1, Mehdi Loueipour2

1MSc. Electrical engineering, Research Institute for Subsea Science and Technology;

[email protected]

2Assistant professor, Research Institute for Subsea Science and Technology;

[email protected]

Abstract

This paper addresses the problem of actuator fault detection for a Remotely

Operated Vehicles (ROVs) widely used in underwater missions. The study

of ROVs’ open-loop and close-loop behaviors under thrusters’ failure can

bring us a bright sight into the ROV’s operational conditions. So, thruster

dynamic responses have been experimentally extracted to have a more

accurate thruster model. Then, dead zone and saturation dynamics which

are the most dominant thruster dynamics are imported into the simulation

model. Also, some scenarios are simulated to investigate the ROV’s

motion performance under healthy and faulty conditions in both open-loop

and close-loop operational modes. The simulation results express that, in

the open-loop condition, distribution of the force under faulty condition

influence on ROV’s motion behavior. Also, those inform us the PID

controller can regulate ROV under both healthy and faulty condition.

Keywords: Thruster’s faults, Remotely Operated Vehicles (ROVs),

Thruster dynamic model




88 | P a g e

Dynamic behavior of Reinforcement plate under

underwater explosion load by numerical method

Ahmad Rahbar Ranji 1, Sajad Taghipour 2 1 Associate Professor, College of marine Engineering, Amirkabir University of


2 Masters Student of Marine Engineering, College of marine Engineering, Amirkabir

University of Technology; [email protected]

Abstract

The main difference between the underwater explosion and the usual

explosions (explosion in the air) is the dynamics of explosive products. In

a underwater explosion, the gas mass produced by the explosion produces

a special pressure field in water, which includes a primary shock wave and

secondary pulses. This paper studies the parameters of near-underwater

explosions and its effects on the structure by Lsdyna software numerical

solution, which has high ability and efficiency in the simulation of

underwater explosion phenomena and structural - fluid interaction

problems. The propagation of the underwater explosion wave in the fluid

medium and the transfer of the wave pressure in the fluid on the structure

are modeled using a multi-material Lagrangian-Eulerian method. Then, by

comparing with an experimental experiment, the error rate is obtained and

the software is validated. The following is a parametric study to Effect of

different reinforcement models on increasing the strength of steel plate

failure and checking the optimum cost of reinforced plate welding. The

method proposed in this project is capable of recording explosive shock

without the need for a very small element and provides a thorough

understanding of the prediction of the effects of the early response of near-

underwater explosions.

Keywords: Underwater explosive loading, reinforcement plate,

Permanent deformation, Plate Rupture, Nonlinear Dynamic Analysis,

Numerical analysis, LSDYNA software



89 | P a g e

Optimal Operation Of The Integrated Floating

Power System With Interruptible Load

Majid Sadeghi Ardestani1, Seyyedmustafa Armaghan2 2Master of Electrical Engineering, NEDAJA; [email protected]

2Master of Electrical Engineering, Amirkabir University of Technology (Polytechnic);

[email protected]

Abstract

The concept of an all-electric wagon and integrated power system (IPS)

has progressed greatly in marine applications. So that the tendency towards

the use of electric propulsion in boats is of increasing interest. The use and

application of electric motors in the electrical propulsion system is

inevitable. These systems use power supplies as well as energy storage to

provide consumers with energy. In the utilization of gridmen, various

goals such as the ability to cut off load, reduce losses, and cost of

production are examined. In this project, GAMS software has been tried

to optimize a network with network connectivity and take into account the

economic purpose that has led to cost reduction in the network.

Keywords: ship microgrid, diesel generator, load shedding, GAMS



90 | P a g e

Multi-objective optimization hybrid model of

Suctioning function using parametric modeling of

Cruise Hull Forms

Mohsen Khosravi Babadi1, Pezhman Mazaheri2, Hasan Ghasemi

1PHD Marine Engineering, Amirkabir University of Tehran; [email protected]


[email protected]

Abstract

The application of metaheuristic techniques to design different Hull ships

in research and industry has seen remarkable growth. The output of these

techniques is to obtain the Hull ship lines in recent years. The research is

based on two parts of the simulation of the initial model, the construction

of different models, and the optimization of the parameters from the

produced samples. In this paper, a hybrid model involves the modeling of

effective hull form coefficients including CWP, CB, CP, LCF, CM, KB,

and L, with the design of a Back-propagation neural network and

mathematical modeling of variations of the Seakeeping functions;

influenced by models made from variations of each of the hull form

coefficients with polynomial matching method and finally optimization of

the modeling functions in the previous step using a multi-objective genetic

algorithm and its combination with the PROMETHEE fuzzy algorithm are

presented. Optimization involves optimizing the seakeeping parameters of

the fast attack craft body including Heave, Pitch, Roll, AddedRsistance,

and MSI in the Oman Sea. Finally, the hydrodynamic parameters in

the optimal state of the seakeeping functions are specified and the Hull

ship lines are modeled in accordance with new parameters. The new model

has been optimized for seakeeping performance.

Keywords: Genetic Algorithm, Hull Form Coefficients, Seakeeping

Performance, Optimization of Hull Form ship



91 | P a g e

Investigating the use of alternative fuel in the

marine gas turbine and its effect on pollution

Mohammad Javad Rostamani 1, Kamran arshtabar2 1, MSc in Mechanical Engineering, Babol Noshirvani University of Technology;

[email protected]

2, MSc in Mechanical Engineering, Islamic Azad University Tehran;

[email protected]

Abstract

International monitoring organizations and national environmental

organizations of many countries are working to reduce greenhouse gas

emissions and pollutants in marine resources through legislation and

regulations. Therefore, the shipping industry faces challenges to reduce

emissions from the engine and greenhouse gases from ships. In this study,

the feasibility of the use of natural gas as an alternative fuel for marine gas

and its parameters affecting emissions are investigated. In order to

investigate the effect of alternative fuels, a thermodynamic model for

turbine has been developed and then its performance for diesel and natural

gas has been compared. The results show that the use of natural gas as a

hydrocarbon fuel has the thermodynamic performance close to diesel fuel

and its thermal efficiency is lower than diesel fuel. Paying attention to the

importance of emission levels and the cost of fuel used in propulsion

systems, natural gas engines are far more polluting and cost less fuel than

diesel engines.

Keywords: gas turbine, alternative fuels, natural gas, pollutants.



92 | P a g e

A Sample Design Of Corrugated Bulkhead In

Aluminum Craft And Comparison It With A Plain

Bulkhead

Farid Habashi M.Sc., Faculty of Marine Engineering, Amirkabir University of Technology,

[email protected]

Abstract

Transverse Corrugated bulkheads are often used in chemical tankers and

bulk carrier in order to help facilitate cargo tank washing efficiently- easier

and faster construction also cargo tank capacity arising. But rarely consider

design of this type of bulkhead in lightweight aluminum crafts. In this

paper we try to design a corrugated bulkhead in the real case study

according to DNV.GL rules. Results are compared stiffened bulkhead.

Results include strength analysis based on the finite element method in

Maestro also compare the natural frequencies and weight that is one of the

basic parameters in fast crafts.

Keywords: Corrugated bulkhead, Fast craft, Finite element



93 | P a g e

Numerical and Field Test Investigation of Static

Hydrodynamic Coefficient of Autonomous

Underwater Vehicle near Free Surface

Mustafa ZarriniLarimi1, Ibrahim alizadeh2, Javad Babaie3 1Maste of Science, Malek-e-Ashtar University, North Institute;

[email protected]

2PHD, Maleke-Ashtar University, North Institute; [email protected]

3 Master of Science, Maleke-Ashtar University, North Institute;

[email protected]

Abstract

This paper contains the numerical and field test investigation of

hydrodynamic force and moment on autonomous underwater vehicle near

free surface. When the body moves near free surface, it faces different

hydrodynamic condition in relation to the open water case. Better control

performance was gained with considering this condition. Current

investigation shows the numerical hydrodynamic simulation on different

depth which calculates the force and moments on body during steady state

motion in a fix depth. This condition describes the steady motion of body

near free surface. The hydrodynamic force and moments on body are

calculated in velocity and depth criterion of 2-5 meter per second and 0.4-

2.5 meters respectively. The numerical results in accordance with field test

show that increasing of body axial velocity near free surface; make an

increasing-decreasing trend of normal force value and changing moment

sign. So, the control effort of the system would be decreased.

Keywords: Autonomous Underwater Vehicle, Hydrodynamics, Free

Surface, Field Test.



94 | P a g e

Sensitivity Analysis of Cross-Deck Plate of a

Trimaran Under Biaxial Compression Loads

Esmail Sadeghian, Sina Tousi

Abstract

In this the reliability concept used to simulate the plate buckling failure

under biaxial compressive loads. Biaxial compression loads due to

splitting loads acts on a trimaran structure, and buckling criterion is

defiend as limit state function, then Monte Carlo simulation were applied

to investigate the buckling of plate. failure probability and reliability index

were calculated and sensitivity analysis of relevant parameters were

investigated using IS and DS methods. The results show that the plate

thickness has the most effect on plate buckling probability of failure.

Keywords: Plate buckling, Probability of failure, Reliability, Monte

Carlo, Sensitivity analysis



95 | P a g e

Study of RCS Reduction methods based on hull

form in stealth surface ships and its implementation

on a corvette class warship

Mehran Taslimi1,Rouhollah H. Goudarzi2*, Ali Maleki3,Ebrahim

Alizadeh4 1-3MSC, Department of Marine; Malek Ashtar university of technology

4Associate professor, Department of Marine; Malek Ashtar university of technology

Abstract

One of the most important and applicable features of a fighter, naval ship

and other military equipment is theirability of being stealth from

radarobservation so that to beundetected from enemy radars. Reducing the

radar cross section is very essential for amilitary equipment like fighters

and bombersand ships since it makes them more survival and increase their

ability to make maximum damages to enemy. Successful examples of

stealth bomberare B-2 and F-117(made by USA) and in naval field are

destroyers like Visby and Zumwalt(respectively made by Sweden and

USA). One of the most important way of reducing of radar cross section is

shaping of object body, so in this paper,suitable geometrical shaping above

freeboard of a corvette classship was proposed forRCS reduction based on

the recent advanced naval ships. After shaping of the corvette hull,it’s RCS

was calculated by CST-MS software. Results show that the corvette new

hull radar cross section was reduced considerably.

Keywords:Stealth, Radar Cross Section,Naval ship, RCS Reduction



96 | P a g e

Voltage and frequency control with harmonic

correction in the shipboard Integrated Power

System

Majid Sadeghi Ardestani1, Seyyedmustafa Armaghan2 2Master of Electrical Engineering, NEDAJA; [email protected]

2Master of Electrical Engineering, Amirkabir University of Technology (Polytechnic);

[email protected]

Abstract

In this paper, a practical approach to designing a ship's power distribution

system is proposed. The use of the integrated power system (IPS) in the

Navy of the Islamic Republic of Iran has also been studied. In this research,

a network including DC fuel cell sources and AC generator diesel

generators was used to provide power for DC and AC loads in order to

avoid DC and AC reverse conversions, as well as battery and super

capacitor storage to support network also benefit We take In order to

stabilize the voltage and frequency and improve the quality of power, we

use control schemes to check for three-phase error, engine load variations

in the AC bus and fuel cell power changes. The network under study in

MATLAB / Simulink software has been implemented to show the speed

and accuracy of the system in stabilizing and recovering the voltage and

frequency, and improving the THD of the proposed grid due to these

disturbances.

Keywords: Ship’s Micro grid, Voltage Control, Frequency Control,

Power Quality, PI Controller



97 | P a g e

Numerical Simulation Of Steady Manueovers Of

An Underwater Vehicle For Calculating Pertinent

Hydrodynamic Forces Amin Ashtari1, Yasin Yalameh AliAbadi2

1Master of Mechanical Engineering, Marine Organization, Shahid Ghorbani, Shahin

Shahr; [email protected]

2 Master of Mechanical Engineering, Marine Organization, Shahid Ghorbani, Shahin

Shahr; [email protected]

Abstract

One of the important steps in the design of submarine vessels is the

determination of forces and hydrodynamic moments on the float.

Hydrodynamic forces and moments include inertial forces, increased

mass, damping, crevillus, propulsion, and force and inhibitory moments.

In recent years, with the advancement of computer science, numerical

methods (CFDs) have been increasingly used in submarine industries. The

high accuracy of numerical methods has increased the use of these

methods in determining the resistance and propulsion force of submarine

vessels. In the present study, we have calculated the two groups of

damping coefficients of a subsurface float model using numerical method.

To calculate damping coefficients, uniform tests with angle of attack and

deviation were used by AnsysCfx software based on finite volume method.

When the object moves with the angle of attack or deviation to the current,

the variation of the drag coefficient in terms of these angles is a parabolic

function and this way it is possible to calculate nonlinear damping

coefficients. Also, using the force and torque diagram of damping on the

object, in these states, linear damping coefficients can be calculated. The

results obtained from the numerical method are compared with the results.

The relatively good results show the accuracy of the numerical method

used in the hydrodynamic calculations.

Keywords: Sub-surface float, Elevation coefficient, Drag coefficient,

Attack angles, Damping coefficients, Angle of deviation



98 | P a g e

Structural Reliability Applications In Design And

Maintenance Planning Of Ships Subjected To

Corrosion

Ahmad Izadi1, Mehdi Najafi Charmini2 Mohsen Sadeghian

Kerdabadi3*

1 PHD student, Amirkabir University of Technology, Tehran, Iran;

[email protected]

2 MSc, Amirkabir University of Technology, Tehran, Iran; [email protected]

3 PHD student, Amirkabir University of Technology, Tehran, Iran;

[email protected]

Abstract

In the present study, the reliability evaluation application in design and

maintenance has been investigated for the ship hull. In order to evaluate

the structure strength, the extended model of ultimate limit-state of hull-

girder regarding corrosion defect has been used based on probabilistic

analysis that depends on time. The time-dependent reliability has been

evaluated using minimum elastic section modulus required; this process in

the case of fatigue in ship deck has been done using S-N curve. The results

from the reliability evaluation using Monte-Carlo and first order reliability

methods (HL-RF), indicates that these two methods match very well.

Analysis of corrosion defect reliability shows decrease of the structure

reliability during its lifetime, hence one can use the reliability criteria in

design phase in order to reach a better perception of structure operation

during its lifetime regarding environmental conditions.

Keywords: Reliability, Probability of Failure, Ship Hull, Fatigue,

Corrosion




99 | P a g e

Fair the body of the ship with Teaching-Learning-

Based Optimization (TLBO) algorithm

Ali Maleki1, Hamid Amiri Ara1, Hossein Janbazi1*, Ebrahim

Alizadeh1 1- Shomal Research Institute of Defence Science and Technology, Malek Ashtar


*P.O.B. 47515373 Freydounkenar, Mazandaran, Iran

Abstract

Body optimization is one of the most attractive areas in all scientific

research, design and construction of ship. Create fair hull form is an

important optimization issue in the body design. This paper developed an

automated software for create fair hull form from the initial unfair hull

form. The proposed optimization method is based on a swarm intelligence

algorithm which the fair of curve surface as the target function and the

unfair curve points are selected as problem variables. Also, constrains were

made to ensure the fix hydrostatic coefficients and tonnage in the final

body form. In the following, to solve this non-linear problem, we use the

Teaching-Learning-Based Optimization (TLBO) algorithm, as one of the

most efficient meta-heuristic methods based on swarm intelligence

algorithm. To illustrate the efficiency and capabilities of the proposed

method, this method was applied to various samples body lines, which

were manually disturbed. The new curves, compared with their initial

curves, shows this method is a very good agreement by maintaining the

hydrostatic properties of the body.

Keywords: Fair, Optimization, Body Form, TLBO Algorithm



100 | P a g e

Modification of porpoising and slamming Behavior

of Two-Stepped high speed planning vessel by

Experimental method

Keshtkar, A 1 , Hashemi, S.J 2 , Dashtimanesh, A 3 1MS Marin Engineering , Shahid Mahallati Industrial Shipyard; [email protected]

2MS Mechanical Engineering, Shahid Mahallati Industrial Shipyard;

[email protected]

3Ms Marin Engineering, Shahid Mahallati Industrial Shipyard;

[email protected]

Abstract

The problem of proposing is one of the most important parameters that

has been taken into consideration during the recent years in planning

vessels, and solving this problem has attracted the attention of many

researchers.

In this paper, the problem proposing of a stepped planning vessel by the

switching of engines has been investigated. At the same time, the

fluctuation phenomenon in the intake of engine water and the increase in

engine temperatures have also occurred, which has made the problem more

complicated.To solve this problem, the hydrostatic and hydrodynamic

state of the planning vessel has been studied and compared with the

previous and current engine in different conditions.

Then, by installing a lifting level at different angles, the effect of this on

the planning vessel behavior was investigated, which resulted in a

significant reduction of the proposing.Resistance, power and variation of

planning vessel trim in different conditions are calculated with Max surf

software and then compared with the test results.

The results have shown good agreement between experimental and

numerical results.

Keywords: Planing Vessel, Proposing, Lifting Level.



101 | P a g e

An Efficient CFD Procedure For Calculating

Hydrodynamic Linear Damping Coefficients Of

Underwater Vehicles

Javad Amini Foroushani 1, Mohammad Gandomkar 2 1 School of mechanical engineering, Kashan university; [email protected] 2 Department of marine science and technology, Malek-e-Ashtar university of

technology; [email protected]

Abstract

In this paper, a practical procedure is demonstrated to calculate

hydrodynamic coefficients using computational fluid dynamics. Strategy

in current pages is to use a specific combination of preexistent methods by

the prospect of minimizing numerical costs such as applying single mesh

topology for all maneuvers, hybrid mesh, near wall treatment function, and

moving reference frame. The key to this goal is to use a single mesh

topology to simulate various maneuvers without concerning about

boundary conditions and the shape of numerical domain. Steady motion

tests such as rotating arm, pure roll, and rectilinear towing tests can be

simulated with a single grid topology by inducing translational and

rotational motion through moving reference frame method. Owing to these

maneuvers, the damping type of hydrodynamic coefficients can be

obtained. Two-equation RANS turbulence model 𝑘 − 𝜀 is used for

simulating turbulent effects. Hydrodynamic coefficients of various

configurations of SUBOFF model geometry are evaluated applying this

procedure. Comparison with other numerical studies shows the efficiency

of the proposed procedure. Validation of computational results is done due

to comparison with experimental data reported in literatures. It shows

acceptable accuracy of the procedure in engineering applications.

Keywords: hydrodynamic coefficients, computational fluid dynamics,

underwater vehicle, dynamic maneuver



102 | P a g e

Electromagnetic transients Analysis in Shore to

Ship Power Supply System Mohammad Mehdi Hosseini1, Beytollah Payvand2, Iraj Hosseini3,

Mansour Ehsanipour4 1MSc, Khaje-Nasir University of Technology, Tehran, Iran; [email protected]

2MSc, Power Electrical Engineering; [email protected]

3MSc, AmirKabir University of Technology, Tehran, Iran; [email protected]

4MSc, AmirKabir University of Technology, Tehran, Iran;

[email protected]

Abstract

Commercial and Military Ships require an electrical energy source for their

lighting and machinery loads whilst berthing. If this energy be provided

by on-ship diesel generators, it pollutes the seaport area considerably. To

prevent that, modern seaports are equipped with electrical source plugs

that connect to standards plugs on ships and provide their required energy.

This type of connection brings about new consequences for electrical

networks on ships and in the seaport as well. These consequences include

TOVs (TOV) due to switching, lightning and ferroresonance in cables, all

can have destructive effect on insulation of transformers and cables. This

phenomena becomes more considerable regarding military ships, since

they need a lot higher reliability in their electrical networks. In this study

EMTP software is used to simulate all elements of electrical connection

system between a ship and the seaport in transient state. Using medium

voltage surge arresters with optimized parameters in particular points of

this network can control the TOVs and keep them in standard range. In

addition, impedance drive starters can restrain the over voltages due to

starting current of motors. Optimum places to use surge arresters and

impedance starter drives has been found in this study and according the

results, TOVs could be limited in standard range.

Keywords: Shore-to-Ship Connection, Cold Ironing, Transient

overvoltage, Transient Analysis, Overvoltage Protection



103 | P a g e

Development a conceptual model to floating hotel

Hosein Javanmardi Masters in ship structure, Sharif University of technology;

[email protected]

Abstract

Floating marine hotels are a new subject in the maritime industry around

the world, and so far no analytical studies have been carried out either

inside or outside the country. In the present paper, a model of the floating

hotel and the geometric properties of this structure are presented. The basic

hydrodynamic analysis of the structure is presented using the BEM

method. The purpose of this analysis is to obtain hydrodynamic

coefficients arriving from the sea environment and analyze the behavior of

this structure. It is only here that the heave motion of the construct is

optimized. The cylindrical body of the hotel is not very conducive to

hydrodynamic behavior, but by adding a disc to the below, heave motion

can be decreased by increasing the mass coefficient and damping

coefficient. Also, by changing the dimensions of the disk and its

immersion position relative to the water surface, it can be shown that by

increasing the disk diameter and increasing the depth of immersion, the

hydrodynamic coefficients will be larger and the domain of heave motion

will be smaller. The resonant frequency and its position is improved in

comparison to the cylindrical body.

Keywords: floating hotel, boundary element method, heave motion,

hydrodynamic coefficients



104 | P a g e

Overview of Catamaran vessels Structural Analysis

Methods with experimental and numerical

Approach

Ibrahim Soleimani1, Mohammad Saeed Seif2, Mohammad Reza

Tabeshpour3 1 Ph.D. student, Department of Mechanical Engineering, Sharif University of



[email protected]



Abstract

One of the most important steps in designing vessels is to find the loading

applied to their bodies during their lifetime and the time it takes to perform

specific operations. These times have different causes, one of the most

important of which is the waves. The tensions and deformations created

on the vessel due to these loads can be effective in designing sheets and

reinforcements and other structural elements of the vessel. Various

methods have been developed to obtain responses for movements and

loads caused by waves and their estimates over the past 50 years. These

methods are needed to improve the performance of design tools used to

estimate loads and movements that have had a significant impact on the

reliability of the operation and safety of the structure. In this regard, the

present paper reviews the methods of structural analysis of Catamaran

vessel with a numerical and experimental approach. Considering these

methods is helpful in choosing the most suitable path for analysis along

the desired parameters.

Keywords: Catamaran vessel, experimental analysis, structural analysis

of vessel, segmented model



105 | P a g e

Investigation Effect of Rake Angles on a B-

Wageningen Propeller performance in Open Water

Condition Ali Maleki1,RajabaliBishe Jafarnzhad2, Rouhollah H. Goudarzi1*,

Ali Ahmadi4,Saeed karami1 1*Shomal Research Institute of Defence Science and Technology, MalekAshtar



Abstract

Today, conventional marine propellers remain the standard propulsion

mechanism for surface ships and underwater vehicles, due to the extensive

benefits of using them. A propeller is a propulsion device that creates

relative motion by forcing the environmental fluid axially backwards, by

means of azimuthally rotating blades mounted in a shaft that is driven by

an engine. A pressure difference is produced between the forward and rear

surfaces of the aerofoil shaped blades, producing thrust that is transmitted

from the blades to the shaft, and finally to the vehicle through the engine

supports. One of the important parameters in the design of a propeller is

the rake angle. Rake is the slant of the propeller blade with respect to a line

perpendicular to the propeller axis of rotation. In this paper, the effect of

rake angle on the performance of a four bladed propeller, designed based

on B-Wageningen series was investigated numerically in free water. To

this end, the propeller was simulated at five different rake angles (50, 100,

150, 200). The results showed that by increasing the rake angle of the

propeller, both thrust and torque coefficients were reduced, while there

was not any significant change in the efficiency of propeller. Also the

results of two phase analysis of fluid flow in propeller, showed that the

amount of cavitation was reduced at higher rake angles.

Keywords: Propeller, Rake Thrust coefficient, Torque coefficient, CFD,

Cavitation




106 | P a g e

Investigating the Effect of Cross-section Geometry

on Pressure Distribution and acceleration planning

vessel

1 seyedmojtaba alavijam,2 amin najafi,3 seyed abolfazl hashemi 1 researcher,national Iranian marine laboratory, [email protected]

2 researcher,national Iranian marine laboratory, [email protected]

3 researcher,national Iranian marine laboratory, [email protected]

Abstract

In this paper, the problem of water entry into two sections of two different

vessel is investigated, and for each of these sections, the values of the

pressure and vertical accelerations are extracted and compared, so that the

effect of cross section geometry on the distribution of pressure and

acceleration Vertical Determine. The comparison between the distribution

of pressure in various states shows that in any case, due to the change in

geometry, the distribution of current around the object has changed,

thereby changing the pressure distribution and pressure coefficient. For

validating the problem, the experimental results used in other papers. The

results show that the cross-sectional variable deadrise is due to better

geometry More optimal than any other section with a more appropriate

pressure distribution. Also, the results of this research can be used to

design the planning vessel, replacing sections constant deadrise with

variable deadrise. With this replacement, the lifting force will increase on

the vessel by increasing the pressure distribution parameter, which will

result in better vessel stability.

Keywords: water entry, Pressure Distribution, Vertical

acceleration,constant deadrise,variable deadrise, Lifting force



107 | P a g e

Parametric Study Of Incident Angle And

Wavelength Effect On Ship Added Resistance In

Regular Wave

Shahrzad Nikbakht, Ahmad Hajivand, Mostafa Jafarzadeh

Khatibani

Abstract

Wave added resistance is a second-order problem and is highly dependent

on wave-wave parameters. Amplitude of this additional resistance is up to

30 percent of the ship calm water total resistance. There are several

numerical viscous and non-viscous method like strip theory, panel method

and RANS method. With respect to accuracy and cost calculations, 3-D

panel method is the best choice for analysis ship behavior in wave. By

using frequency domain Green's function 3-D panel method added

resistance of S-175 containership is computed by far filed and near field

approaches. To investigate the effect of wave incident and wavelength,

calculations are performed in different incident angle and wavelength.

Also by using an accurate and fast empirical validated method that have

recently been proposed, added resistance in head sea are calculated for

different wavelength and ship speed. Far field and near field results are

consistent with good accuracy. Numerical and empirical results are

compared with experimental that shows high accuracy results.



108 | P a g e

Study of the Model Scale Effect on the Resistance

Model Tests of Planing Hulls

Mohammadreza Fathi Kazerooni1, Mohammad Saeed Seif2 1PhD Candidate, Center of Excellence in Hydrodynamics & Dynamics of Marine

Vehicles; [email protected]

2Professor, Center of Excellence in Hydrodynamics & Dynamics of Marine Vehicles;

[email protected]

Abstract

Scaled model test in the towing tank is a common method to predict the

ship resistance in the calm water. The scale effects are dominant in these

tests because the Reynolds and Froude numbers of the model cannot be

equal to full scale simultaneously. There is sufficient knowledge about

displacement hulls that their speed ranges are limited in the most cases,

while inadequate published data is available for high speed crafts. The

influence of the model length on ship resistance is different for various

speeds and it should be studied in more detail. The extrapolation method

of model ship resistance to full scale for high speed monohulls is studied

in this paper. Resistance model tests of semi-displacement hull and planing

hull are performed for two different sizes. The frictional resistance

coefficient is calculated by ITTC57 correlation line and residual resistance

coefficient is derived in each case. According to the results it was

concluded that the major part of ship resistance is dedicated to frictional

resistance in low speed up to length Froude number 0.3 and length Froude

number more than 0.9. In moderate speeds that is of interest for semi

displacement hulls small portion of hull resistance is dedicated to frictional

resistance and model size has small influence on the residual resistance

coefficient.

Keywords: Towing tank, Model test, Scale effect, Resistance, Planing hull



109 | P a g e

Comparison of Dynamic Performance of Harth

vessel with Mono-Hull ship and Catamaran in Sea

Waves

Ibrahim Soleimani1, Mohammad Reza Tabeshpour2, Mohammad

Saeed Seif3 1 Ph.D. student, Department of Mechanical Engineering, Sharif University of





[email protected]

Abstract

At present, there are various forms of vessel underwater geometry

currently used in the design of mono-hull and multi-hull ship structures.

The use of new bodies such as HARTH vessel, aims to achieve such goals

as increasing stability and speed of the vessel. One of the most important

steps in ship design is the prediction of ship movements in the waves of

the sea. Dynamic performance of ships can be demonstrated using vessel

response amplitude operator (RAO) charts. This paper first introduces the

Harth vessel and features it to other mountaineers. In addition, the dynamic

performance of the Harth vessel and the mono-hull ship and catamaran by

the RAO diagrams of these vessels extracted from the ANSYS AQWA

software It is also compared. Advantages of the Harth vessel, including

low resistance, reduced engine power due to reduced wave resistance,

speed at high sea waves and proper seawater specifications, has made

research into this body shape one of the favorites of researchers.

Accordingly, they are referred to as next-generation vessels.

Keywords: HARTH vessel, Hydrodynamic analysis, Software modeling,

RAO charts

https://en.wikipedia.org/wiki/Response_amplitude_operator



110 | P a g e

Model Reference Adaptive Control of a surface

vehicle based on integral line of sight in the

presence of disturbances and uncertainties

Mostafa Faramin1, Rouhollah Hadipour Goudarzi2*, Ebrahim

Alizadeh3 1Master of Science, Electrical Engineering, Malek Ashtar Technology of university;

[email protected]

2*Master of Science, Naval Architect Engineering, Malek Ashtar Technology of

university; [email protected]

3Assotiate Professor, Mechanical Engineering, Malek Ashtar Technology of university;

[email protected]

Abstract

The Objective of this paper is to design an adaptive control with integral

feedback to track desired heading angle that is output of guidance

subsystem. A dynamic and kinematic 3 degree of freedoms model in the

state space form has been written. Then integral of error between output of

plant and reference input defines as a new state variable to augmented

model of state space has been earned. A Lyapunov function is defined to

analysis and design adaptive controller with adaptive laws. Modeling of

wind effects as disturbances of the system demonstrates. An integral line

of sight has been presented to design desired path based on predefined

waypoints. Finally the performance of proposed method for a surface

vehicle has been shown using numerical simulations.

Keywords: Model Reference Adaptive control, Integral Line of sight

(LOS) algorithm, Surface vehicle, Environmental disturbances



111 | P a g e

Investigation the Effects of Idle Conditions on the

Outboard Engines Failures

Hossein Nasri1, Mahmood Bari2, Hojjat Shabgard3 1Master of Science of Mechanical Engineering, Payam-Noor University of Mashhad

2 Mechanical engineering, Petroleum University of Technology; [email protected]

3PHD Student of Mechanical Engineering, University of Birjand,

[email protected]

Abstract

Outboard motors have a widespread usage in different marine industries.

These engines are classified in two major type 2-stroke and 4-stroke.

Recently high-performance and modern engines are attended by outboard

owners. Due to those modern technologies, inappropriate utilization of

outboard motors could seriously affect the engines. This paper relates to

the study of idle condition effects on the engine failures. Based on the

results, in low RPM and idle condition the probability of these failures

significantly increases.

Keywords: Outboard Motors, Failure Analysis, Idle Condition, Oil

Analysis



112 | P a g e

Dynamic Behavior Of Plate Under Underwater

Explosion Load By Numerical Method Ahmad Rahbar Ranji 1, Sajad Taghipour 2

1 Associate Professor, College of marine Engineering, Amirkabir University of


2 Masters Student of Marine Engineering, College of marine Engineering, Amirkabir


Abstract

The main difference between the underwater explosion and the usual

explosions (explosion in the air) is the dynamics of explosive products. In

a underwater explosion, the gas mass produced by the explosion produces

a special pressure field in water, which includes a primary shock wave and

secondary pulses. This paper studies the parameters of near-underwater

explosions and its effects on the structure by Lsdyna software numerical

solution, which has high ability and efficiency in the simulation of

underwater explosion phenomena and structural - fluid interaction

problems. The propagation of the underwater explosion wave in the fluid

medium and the transfer of the wave pressure in the fluid on the structure

are modeled using a multi-material Lagrangian-Eulerian method. Then, by

comparing with an experimental experiment, the error rate is obtained and

the software is validated. The following is a parametric study to determine

the effect of Cooper-Symonds coefficients on strain rate problems, Effect

of materials on plate dynamic behavior, Relationship between plate

strength and failure and Effect of plate Geometric Parameters on failure.

The method proposed in this project is capable of recording explosive

shock without the need for a very small element and provides a thorough

understanding of the prediction of the effects of the early response of near-

underwater explosions.

Keywords: Underwater explosive loading, Steel plate, Permanent

deformation, Plate Rupture, Nonlinear Dynamic Analysis, Numerical

analysis, LSDYNA software



113 | P a g e

Presentation of optimization model for General

allocation of military vessels using genetic

algorithm

Karim akbari vakilabadi, Mohsen rahmani, Hossien khanzadi,

Vahid heidari,

Abstract

General layout and equipment on military vessels is one of the most

complex and sensitive processes for ease of use in service life. Utilizing

the genetic algorithm and using expert opinion can be a relatively suitable

method for optimal layout in military vessels.

In this study, after studying all the features, capabilities and applications

of the genetic algorithm, a model for this purpose is developed using

MATLAB programming software.

This model briefly considers the naval vessel general arrangement in

matrix form and, by deducting the space for the standard equipment

location, receives the user of the shape and amount of space needed to be

placed on the deck, and after implementing the standard steps of the

algorithm Genetically, considering the assumptions concerned, the user

presents the optimal modeling of the equipment on the deck to the user.

Using this method, you can see certain reports, including the number of

replications and the optimal amount.

Keywords: Generic algorithm, optimization, general arrangement,

MATLAB Software



114 | P a g e

Investigating The Effects Of Airborne Dust And

Dust Particles On The Electronic Components Of

Marine Vessels And The Introduction Of Systems

Required For Ip Tests

Ali Rezvanifar

Abstract

Suspended particles of dust and moisture in the air and passing from the

body of the electronic systems of marine systems cause problems in the

performance of these components and cause problems in their proper

functioning. The IEC in its publications lists the two above-mentioned

properties for the electrical device body by means of two numbers. The

first digit indicates the degree of protection of the device against the entry

of foreign bodies into the body, as well as the contact with electric or

moving parts, and the number The second indicates the degree of

protection of the device against the penetration of water into it. The two

above-mentioned numbers are used with two IP letters, which, according

to the definition of IEC, replace the word INTERNATIONAL

PROTECTION. For better performance, longer term and less tolerance of

electronic systems in marine vessels, as well as doing the right behavior

with them, they should have the degree of protection of each. The purpose

of this paper is to provide some methods for determining the degree of IP

protection in accordance with marine standards. This causes the body to

be exposed to dirt or dust if it is necessary to do so, and if this level of

protection is low, then it will be necessary to think of it. Prevent equipment

breakdown.

Keywords: IP, Humidity, Dust, Protecting electrical equipment for marine

floating



115 | P a g e

Effect Of Electrodeposition Coating Parameters On

Wettability Behavior Of Tin Oxide Surface,

Experimental Design And Discussion

Seyyed Mohamad Sadati Tilebon

Abstract

Surface is one of the most important parts of different tools and

instruments. Wettability of surface is effective on quality of surface and

several another specifications of surface. In high speed submarine, super-

hydrophobic surfaces can improve the different qualities of surface such

as corrosion, shear stress and intermediate adhesion. However, recently

huge number of researchers focused on super-hydrophobic surfaces. Tin

oxide because of good properties such as self-cleaning and photo-catalytic

activities is focused. In this study, effective electro-deposition coating

parameters is discussed by experimental design method. Results showed

that highly super-hydrophobic surfaces (with WCS higher than 160) is

achievable by electro-deposition coating.

Keywords: Electro-deposition, super-hydrophobic, tin oxide.



116 | P a g e

Experimental research about friction and wear of

antifriction materials for port’s/coastal and

maritime machinery or equipment and analysis of

parametric oscillations of ships shafting with new

composite stern-tube bearings Grebe E.1, Loshadkin D.V.1, Kushner G.A.2, Haljavkin A.A.3,

Dudanov A.A.1 1Skolkovo Foundation's resident «Innovation Center Plastmass Group»; [email protected],

[email protected]

2Astrakhan State Technical University; [email protected]

3Gazprom Dobycha Astrakhan; [email protected]

Abstract

The series of new antifriction self-lubricating composites on base of

thermoplastic of our own invention (molecular composites). The friction

and wear of molecular composites, sliding against iron, were investigated

in different conditions by a reciprocating tribometer. The physical

mechanical properties were measured by standard tests. The tribological

characteristics of molecular composites were determined by applying to

iron several composite specimens of advanced compositions, containing

friction modifiers. With water present in the experimental cell, friction and

wear are effectively reduced. The composites were used in order to make

a model specimen of tube bearing stern. The analysis of the work our

bearing was made by using the experimental set for the study of parametric

oscillations of ship shafting. The set is universal and allows studying the

longitudinal, transversal and torsional oscillations. The results of the

calibration load of the node are exposed. As a result of testing the new

material for the stern-tube bearing, based on molecular composite, is

concluded that the new material conforms to the requirements of materials

for stern tube bearings.

Keywords: molecular composite, thermoplastic, antifriction material,

tribology, ship shafting, stern bearing, parametric oscillations.

Port and coastal structures Offshore platforms Marine pipeline engineering Fabrication and installation of offshore structures Marine geotechnics Corrosion and protection of marine structures

Coastal and offshore facilities8 Port and coastal structures Offshore platforms Marine pipeline engineering Fabrication and installation of offshore structures Marine geotechnics Corrosion and protection of marine structures

Coastal and offshore facilities8



117 | P a g e

Investigation Effect of Pitting Corrosion on Oil and

Gas Pipeline Collapse Using Theory of Probability

of Failure

Abdolrahim Taheri1, Mohammad Mahdi Shabani2, Abbas

Etemadian3 1Assistant Prof. in Offshore Structures, Petroleum University of Technology,

[email protected]

2M.Sc. Student in Offshore Structures, Petroleum University of Technology,

[email protected]

3B.Sc. student in marine machinery, Petroleum University of Technology,

[email protected]

Abstract

Pitting as one of the most destructive types of sweet corrosion happens due

to crude oil/ natural gas production in pipeline environment. It causes

thinning in pipeline wall thickness and consequently, causes decrease in

pipeline strength against operational and environmental loading which in

some cases lead to pipeline bursting. The current paper, reviews the most

popular empirical models for estimating maximum pitting depth and then

the health and integrity of a pipeline located in South Pars is assessed

considering two statuses; intact and corroded based on DNV, API and

ASME codes. Finally, in order to investigate effect of pitting on the

pipeline design parameters, sensitivity analysis is carried out. It concluded

that pitting as an ineligible effect on health and resistance of a pipeline

against bursting and operating pressure and pipeline wall thickness are the

most effective parameters on pipeline failure.

Keywords: Subsea pipeline, corrosion, probability of failure, bursting




Marine Industries Conference thAbstract Book of 19 Iran d, Kish Islan – 2017 14 Dec. -11


118 | P a g e

Determine the Optimal Level of Water Harvesting

at the Jengin Dam Using Intelligent Models

H. Rezaian Asl1, A.Raisi Makyani2, Somayeh.Angabini3*

1Managing Director of Far Coast Shipping Company

2 Managing Director of Shipbuilding Expansion

3 Department of Watershed Sciences and Engineering, Science and Research Branch,

Islamic Azad University,Tehran, Iran.

Abstract

In water construction projects, river engineering, and irrigation and

drainage engineering, it is vital to estimate the accurate volume of the

sediment transported by rivers. As the sediment transport phenomenon is

an immensely complex problem, therefore presenting an appropriate

solution for precise evaluation of the suspended load in rivers is tedious

and the mathematical models are not also accurate enough to be applied.

Nowadays application of artificial intelligence systems has been

developed as a novel solution in analysis of water resources problems. In

this research, the Adaptive Artificial Neural Network (ANN) and fuzzy

models were utilized to determine suspended sediment rate of Jagin River.

Correlation coefficient (R2) and Root Mean Square Error (RMSE) are

considered the model's assessment criteria. The results show a higher

accuracy of fuzzy model assessments in comparison with neural networks

and sediment rating curve assessments and According to calculations done

by the software Abaqus, and determining the amount of sediment in the

dam water level of the lake to remove the code elevation 232.5 meters.

Keywords: Sediment, Intelligent Models, Jagin River, optimum level



119 | P a g e

Reliability Analysis of TLP Tendon under Extreme

Tension in both Intact and Damaged Condition

Mohammad Reza Tabeshpour1, Negin Nazari2, Mohammad Reza

Mahmoudi3 1Assistant Professor, Sharif University of Technology; [email protected]

2Engineer, Sharif University of Technology; [email protected]

3Engineer, Sharif University of Technology; [email protected]

Abstract

Tension-leg platform (TLP) is one the proven technologies for deep

explorations. These structures are moored with pretensioned tendons to the

sea bed. So its integrity in harsh environment is vital. In the present study

a TLP is simulated in North Sea environmental condition in depth of 800

meters using MOSES software. Stress time histories are so obtained

utilizing 3-dimensional diffraction theory for intact tendon condition and

one tendon missing condition. Two conditions consisting 12 and 16

equivalent tendons are assumed for the structure. Reliability indices and

probabilities of failure are calculated with Rt software using Monte Carlo

simulation. It is seen that missing of one tendon drastically increases the

probability of failure. Also, increasing the number of tendons from 12 to

16 may lead to a better performance of the structure.

Keywords: TLP, Tendon, Extreme Tension, Reliability, Monte Carlo

Simulation,



120 | P a g e

Determination of Residual Strength of Composite

Over-wrapped Pressure Vessel

Abdulreza Kabiri AtaAbadi1, Mohamad Khorashad2, Mohamad

Reza Zarei3 , Hassan Rayegan4 1Department of Marine Engineering, Malek-Ashtar University;

[email protected]

2 MSc, Bonyan Sanat Kariz Company; [email protected]

3 Department of Marine Engineering, Chabahar Maritime University;

[email protected]

4 Department of Mechanical Engineering, Birjand University;

Abstract

Composite materials are used extensively over the last decades. It is

because of low weight and high strength to weight ratio. Pressure vessels

are used in different industries. In this paper, low velocity impact analysis

of composite over-wrapped pressure vessel is investigated. So, a

progressive damage model based on continuum damage mechanics and

non-local theory is developed. Finally, residual strength of composite

over-wrapped pressure vessel was determined and it was resulted that

damage could decrease the strength of the composite pressure vessel up to

55%. Also, it was found prepared damage model is suitable and can

predicte damage modes in laminated composite material under dynamic

loads.

Keywords: Continuum damage model, Impact analysis, VUMAT

subroutine, Non-local theory, composite pressure vessel



121 | P a g e

Investigation on the Effect of Pile Scouring on the

Structural Behavior of a Recently-Built Fixed

Jacket Platform

Ghafour Emamverdizadeh beyg1*, Abdolrahim Taheri2

1 M.Sc. Student, Marine Engineering Department, Petroleum University of Technology,

Corresponding Author, [email protected]

2 Faculty Member, Assistant Professor, Marine Engineering Department, Petroleum

University of Technology, Mahmoudabad, Iran [email protected]

Abstract

In offshore field, several past studies reveal that most of collapse failures

are caused by lack of sufficient piles strength because loads are distributed

and transmitted through piles body. Therefore, scour phenomena affects

load transition and eventually pile strength. The necessity of the scouring

phenomena investigation emerges when the scour depth becomes

remarkable which can endanger jacket stability. In this paper, the simple

stepping up method of soil curves is used for the sake of regarding scour

by push over analysis of software SACS. A recently-built existing jacket

platform namely SPD 19C is opted as a case study. Results shows that

recently-built jacket platform RSR decreases with scour depth increasing.

RSR decreasing becomes more sensible as scour depth increases.

According to API RP2A collapse will be occurred in the range of RSR<

1.6, results show that at RSR=1.6, collapse will be occurred in the scouring

depth of 13.5m for recently-built platform, which approximately 27%

lower RSR than their original state. So scour protection methods should be

addressed in vulnerable areas as preventive alternatives.

Keywords: Jacket Platform, SACS, Pushover Analysis, Scour, Persian

Gulf




122 | P a g e

Study of the storm on the Caspian Sea

N.hatamibavarsad1, D. Mansoury2, M.khalilabadi3

1MSC. student in Physical Oceanography, College of Marine Science, University of

tarbiyat modares, [email protected]


tarbiyat modares, Iran. [email protected]


malek ashtar, Iran. [email protected]

Abstract

Sea surface oscillation depend on two reasons for the storm: the first cause

is the storm winds that, by introducing stress on the surface of the water,

causes the transfer of momentum to the surface of the water, and the

second reason is the drop in atmospheric pressure during the hurricane,

causing turbidity of the sea surface. This effect, commonly referred to as

the "pressure inversion effect", has been studied. In this paper effect of low

atmospheric pressure on fluctuations in water surface and wave height of

the Caspian Sea is studied. In this study, Caspian Sea Wind patterns were

studied for the year 2012 on a daily basis. For this purpose, wind data with

a 6-hour time interval of 0./125 The ECMWF data bank was used for one

year for 2012. From the results of this study, there could be a cyclone due

to wind in the southern part of the Southern Caspian Sea in the cold month

(February), also a cyclone due to wind on the southern shores of the

Caspian Sea in the warm month (August). The speed of the storm in

February was 9.26 m / s on 16th day, after 6 hours reaching 8.11 m / sec.

Also, in August, the storm speed is 2.6 m / s.

Keywords: Storm, cyclone, Caspian Sea





123 | P a g e

Investigation of Local Scour Below Offshore

Pipeline Under Steady Current Using Flow 3d

Numerical Model

Sobhani. R1, Naeeni. S.T.O2

1Master graduate, Civil Engineering Department, University of Tehran;

[email protected]

2Assistant Professor, Civil Engineering Department, University of Tehran;

[email protected]

Abstract

In this paper, local scour below offshore pipeline under steady current has

been investigated by Flow 3D numerical model in different situations.

Then the results compared with similar physical experiments to evaluate

the reliability and quality of the Flow 3D sediment scour model. The

results show that the Flow 3D model can predict scour depth almost good

but it can’t simulate the scour shape and the downstream process of local

scour. Also, by conducting experiments for different gap ratio (pipeline

distance to bed on pipeline diameter G/D), the effect of pipeline gap on

scour depth is investigated. When G/D gets larger, scour depth and width

gets bigger and the scour shape centerline moves to downstream of the

pipeline.

Keywords: local scour, Flow 3D, current, offshore pipeline



124 | P a g e

Structural Strength Analysis of Super-Cavitation

projectileOblique Water Entry

Jalal Mohammadi1,Sajad Taghipour2

1Assistant Professor, College of marine Science and Engineering, MalekAshtar


2Masters Student of Marine Engineering, College of marine Engineering, Amirkabir


Abstract

This paper deals with the analysis of components of structural strengthof

a supercavitating projectile when entering water using Abaqus

software.The projectile in this article is a supercavitation conical head fin

stabilityprojectile that used to destroy underwater purposes.What follows

in this study is the investigation of the structural strength of the projectile

in relation to the materials intended for it to prevent the projectile from

becoming deformed at the moment of contact with the water surface and

to achieve the desired purpose.To simulate the penetration phenomenon in

the finite element analysis, a damaging behavioral model called Johnson

Cook's Damage Model is used.In this modeling pressure analysis on a

projectile, the force is obtained from the reference point, which is actually

entered into the structure when the projectile enters the water from the

fluid.The material intended for supercavitating projectiles in software

modeling is tungsten carbide with 6% cobalt. The results of this analysis

are presented in terms of bearing pressures associated with the projectile

and design coefficient of design.

Keywords:High speed projectile, Water entry numerical analysis, Johnson

Cook's behavioral model, Abaqus software




125 | P a g e

The Effect Of Mechanical Properties Of Mooring

Systems On The Dynamic Response Of The Semi-

Submersible Platform

Seyyed Mohammad Hossein Sharifi1, Masoud Bolfakeh2

1Assistant professor of marine engineering, Petroleum University of Technology;

[email protected]

2 Student master of engineering marine structures, Petroleum University of Technology;

[email protected]

Abstract

It is very important to study the behavior of semi-submersible platforms

that are used for drilling operations and extraction in deep waters. Due to

the importance and the role of mooring systems in limiting the platform

movements, in this study the effects of different mooring models as well

as the type of mooring materials on dynamic behavior response are

investigated and a numerical method is used to solve the coupled motion

equations for analyses the platform response. The results indicate that, the

change in materials has a great effect on the platform response such as the

effect of changing mooring model. Among mechanical properties, in

addition to weight, elasticity and hydrodynamic effects of the mooring

system, play a decisive role in this response. Increasing hardness by double

and weight density of materials by 50%; surge response, sway response

and heave response are reduced on the average 6%, 8% and 14%

respectively. It is also observed that in some cases the elasticity of the

mooring system is more effective than the weight and has more effect on

the platform response.

Keywords: semi-submersible platform, mooring system, dynamic

analysis, numerical method



126 | P a g e

Application Of Differential Quadrature Method

(Dqm) In Buckling Analysis Of Marine Composite

Sandwich Structures

Ali Maleki*1, Ali Ahmadi2, Ebrahim Alizadeh3

1*Shomal Research Institute of Defence Science and Technology, MalekAshtar



Abstract

In this paper, buckling of an orthotropic cylindrical sandwich shell under

the action of uniform external lateral pressure is studied using differential

quadrature methods. Governing differential equations are driven based on

the second Piola–Kirchhoff stress tensor and three dimensional elasticity

solution. Buckling equations are reduced to a homogenous linear system

of equations using differential quadrature method. Numerical results are

obtained for sandwich shells with face sheets made out of graphite/epoxy

or glass/epoxy. The results obtained by the present method are verified

with finite element solutions and those reported in the literature. Results

shown that presented method can be used to evaluate buckling pressure of

any types of cylindrical composite sandwich shells.

Keywords: Buckling, Differential quadrature method, Sandwich shell,

Composite materials.




127 | P a g e

Damage fatigue in riser fixe platforms according to

regulation api

case study region pars south

Hamid anbarestani

Graduated MSc, Engineering Offshore Structures, [email protected]

Abstract

Riser is one of the components of offshore platforms, Which consists of a

narrow cylinder that connects vertically from one side to the deck of the

platform and from the other side to the sea bed, And the transfer of oil and

gas from the sea bed to the platform. Marine risers are exposed to many

environmental forces, Which forces the oscillatory vibrations of the risers

in different directions, which are the so-called common the Vortex Induced

Vibrations, resulting in fatigue damage and shorter lifetime of risers. One

of the important issues with structures exposed to dynamic loads is the

accumulation of fatigue damage. Calculation of these stresses involves

checking the vibration of the raiser along the fluid flow and also in the

direction of the vertical movement of the fluid. In this article, the damage

caused by risers fatigue is based on the regulation API, Using finite

element method, Has been investigated and finally, the estimated useful

life of Riser against the fatigue phenomenon in the region is a case study.

Keywords: Marine risers, platform jacket, Vortex Induced Vibrations,

fatigue damage, regulation API



128 | P a g e

Investigation of Hydraulic Stability of DezhPod

Armour Unit

Seyed Abbas Mousavi1, Aghil Hajmomeni2

1Design Expert of Coastal and Port department, Sazeh Pardazi Iran Consulting

engineering; [email protected]

2Director of Coastal and Ports Department Basic Studies, Sazeh Pardazi Iran Consulting

engineering; [email protected]

Abstract

The DezhPod new Armour is a forge of the third generation of concrete

armour units, which is deployed as a single layer and random placement.

In order to develop this armor, it is necessary to test the physical model in

different conditions on it as well as in comparison with other similar

armour units. In this paper, the study of the DezhPod Armour hydraulic

stability and its comparison with Xbloc armour has been carried out by

performing physical experiments in the Flume of Tarbiat Modarres

University. A series of experiments with a scale of 1:51 has been done on

armor DezhPod and Xbloc and a scale of 1:66 was done on armor DezhPod

alone. The experiments show that both armor DezhPod and Xbloc have

been completely stable under 1.25Hs wave conditions. So that no blocks

were removed from the body of the breakwater. Separation of blocks was

observed for waves above 1.5Hs. Despite the separation of about 1% of

the fork blocks (9 Pcs), the protective layer was completely stable.

The results of the experiments show that the hydraulic stability of the

DezhPod unit is good compared to Xbloc Armor unit. Due to the low

porosity of DezhPod armour Layer, the amount of overtopping in sections

with DezhPod units is more than the Xbloc units.

Keywords: DezhPod armour unit, Hydraulic stability, armour layer,

breakwater



129 | P a g e

Failure Probability Based Analysis of Dropped

Object on Submarine Pipelines

Sina Taghizadeh Edmollaii1, Pedram Edalat2

1M.Sc. Student, Faculty of Marine Engineering, Petroleum University of Technology,

Mahmoudabad, Iran; [email protected]

2Assistant Professor, Faculty of Marine Engineering, Petroleum University of

Technology, Mahmoudabad, Iran; [email protected]

Abstract

One of the safest and the most economical methods to transform oil and

gas is pipeline system. Prediction and prevention of pipeline failures

during its assessed lifecycle has considerable importance from industrial

experiences point of view. The dropped object is one of the accidental

scenarios in the failure of the submarine pipelines. In this paper, the

influence of the dropped object on a submarine pipeline located in near

platform of 19C South Pars gas field and having 32” diameter is considered

as a case study. According to the DNV-RP-F107- the probability of failure

analysis of the pipeline due to a dropped object- firstly, the impact

frequency is calculated. Secondly, the probability of damage due to box-

shaped object is determined by using energy transfer analysis and Monte

Carlo method. Annual frequency of failure of the pipeline is equal to

4.5×10-7 that is less than the rule-based acceptance criteria of 10-5. In

other words, this level of protection is safe for the pipeline.

Keywords: Submarine pipeline, Dropped object, and Probability of

failure.



130 | P a g e

Single Point Mooring (SPM) System Analysis under

Wave and Current Environmental Forces B. Eghbali1, M. Daghigh2*, Y. Dagigh3, F. Azarsina4

1MSc student, Department of Marine Structures, Faculty of Marine Science and

Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;

[email protected]

2 Assistant professor Department of Marine Structures, Faculty of Marine Science and

Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran and

Member of Pars Oil and Gas Company; [email protected]

3Assistant professor, Department of Civil, Faculty of Technical and Engineering, Karaj

Branch, Islamic Azad University, Karaj, Iran; [email protected]

4Assistant professor, Department of Marine Structures, Faculty of Marine Science and

Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;

[email protected]

Abstract

Single Point Mooring (SPM) is used as offshore mooring facilities for the

loading and unloading of oil and gas in the sea. In Iran, it is called briefly as

“floating buoy”. This offshore structure is fixed or floating. In this research,

floating type was discussed and it was fixed to the seabed with mooring chain.

In this study, mooring chain of SPM, which is considered one of the important

parameters of its design, in different environmental conditions will be

evaluated.. OrcaFlex Ver. 4.9e (UK) software is used for moorings analysis

that is related to the Orcina Company. For this purpose and to calculate the

environmental forces in the mooring chains (in our case 6 mooring chains

with 60 degree angle), the diffraction analysis and time history has been used.

The results show that, by decreasing and increasing the diameter of the

mooring, the force applied to the mooring also decreases and increases. Also,

the effect of chain diameter, direction, and amount of wave and current has

also been studied. The behavior of wave and current shows when the direction

of the wave and the current are closer to the direction of each mooring chain,

the force applied to the mooring increases. In this research, a case study of the

environmental forces of the SPM project was used to export the Azadegan

extra heavy crude oil in the Behregan oil terminal, which was carried out by

the Tehran Berkeley Consulting Engineers. By analyzing the SPM, the

minimum safety factor of the mooring force is calculated to be 2.67, indicating

the adequacy of the technical specifications and the mooring geometry against

the environmental forces.

Keywords: Moorings Force, Floating Buoy, SPM, OrcaFlex, Safety Factor




131 | P a g e

Evaluation of Environmental Load Factors for

Persian Gulf Jacket Platforms by Reliability

Analysis Mohammad Saleh Akrami1, Naser Shabakhty2, Farhood Azarsina3 1MSc in Marine Structures, Marine Science and Technology Department, Science and

Research Branch, Islamic Azad University; [email protected]

2Assistant Professor, School of Civil Engineering, Iran University of Science and


3Assistant Professor, Marine Science and Technology Department, Science and

Research Branch, Islamic Azad University; [email protected]

Abstract

In recent years, many researches have been carried out to Localize ISO-

19902 standards for design of fixed steel offshore platforms in different

regions of the world. The use of API WSD standards is currently common

in design while the LRFD method, that consist of both partial load and

resistance factors, is expanding. In this regard there has been brief research

for the Persian Gulf region, so there is a huge vacancy for the offshore

industry of Iran. Evaluation of environmental load factors are usually

calibrated through Reliability analysis. In this type of analysis, the

performance of a structure is defined by the limit state function for the

critical mode of failure. In this paper, at first, uncertainties in load and

resistance are investigated and statistical parameters are obtained. Then,

using the structural component based reliability method, the reliability

index of the jacket platform cylindrical members were obtained and

measured with the values of the target reliability index, obtained from the

WSD method, and finally the factor of 1.28 for the Persian Gulf

environmental load has been set. This factor is lower than the factors

obtained for the Gulf of Mexico and the Mediterranean Sea, and is greater

than Indonesia and the Central and South North Sea, but close to the

Northern North Sea and Malaysia.

Keywords: Uncertainty, Environmental Load Factors, Reliability, Persian

Gulf



132 | P a g e

Investigation Of Launching Of A Truss Spar

Platform By A Launch Barge Under Wave With

Zero Degree Angle

Mojtaba Khalifehie1, Keyvan Sadeghi2

1Student of MSC Civil Engineering, Offshore, Hormozgan University;

[email protected] 2Assistant Professor, Buein Zahra Technical University; [email protected]

Abstract

The launching of a truss spar platform in conditions close to reality is

considered under regular wave power with zero degrees. In the launching

process, it is necessary to correctly predict all forces acting on the platform

and the barge and the trajectory of them to prevent problems such as

capsizing, collision or hitting of the platform to the sea bed.

The launching process is simulated by Moses software. Time histories of

the motions of the barge and the truss spar platform and the forces acting

on them are derived. The output graphs of Moses show the behavior of

platform and barge in every stage of the launching process. Comparison of

the results with other numerical results shows that the performed analysis

can be used as an aid for proper design of launching process, as the most

critical stage in the installation of the platform.

Keywords: Offshore launching, Dynamic analysis, Truss spar platform,

Boundary element, Wave force



133 | P a g e

An Overview Of Frictional Stir Welding In

Offshore Structures

Gelare Fereydoni1, Ahmad Rahbar Ranji2, Eslam Ranjbar Nodeh3

1Msc Student, Amirkabir University; [email protected]

2 Professor of Maritime Engineering, Amirkabir University; [email protected]

3 Professor of Mining Engineering, Amirkabir University; [email protected]

Abstract

In offshore structures industries, one of the most important construction

processes is related to structural welding. Therefore, one of the most

important steps in the construction of marine structures is the choice of

proper welding method along with the recognition of its features and

requirements. Among the various welding methods, Friction Stir Welding

method is one of the well-known processes that has advantages such as

low distortion, optimal microstructure, environmental pollution reduction

and the ability of aluminum metal welding in offshore and offshore

structures (for helium Deck was in it. Therefore, in this paper, after

presentation of the method of operation of this welding process, its main

characteristics are presented. Then, the role of welding speed and different

weld areas in this process has been investigated. Finally, the impact of the

welding tool and tool geometry in this welding method has been studied

extensively. One of the advantages of this type of welding process in terms

of fusing welding and common in the current industries of shipbuilding

and offshore is to reduce the distortion and reduce the post-heating

processes after welding and, as a result, the speed and quality of the

manufacturing process, Attention.

Keywords: Structural Welding, Friction Stir welding, Aluminum

Welding.



134 | P a g e

The Importance Of Monitoring The Health Of

Offshore Fixed Platforms

Mohammad Amin Adibipoor 1, Arno Petrosian2, Khaled Pourail3,

Saba Dehghan4, Marzieh Ali Akbari Karimi Sheikh Abadi5,

Manouchehr Fadavie ardestani6

1 M.Sc. Student, Marine Engineering Department, Amir Kabir University of


2 M.Sc. Student, Marine Engineering Department, AmirKabir University of





Technology; sahar123 @aut.ac.ir



6 Assist. Prof., Marine Engineering Department, AmirKabir University of Technology;

[email protected]

Abstract

The strategic role of the Persian Gulf in the Middle East region and the

importance of the oil and gas fields have necessitated the continuous study

of large structures into an appropriate research field. In this study, the types

of platforms and offshore structures and loads entering the platform in the

Persian Gulf region and some of its common failures are under the

influence of these failures. Then, the definition and description of the

health monitoring system of the structure at different levels and the main

components of this system are discussed. Further, according to the results

of the study and comparison of theoretical and practical studies of health

monitoring of structures in offshore industries and similar industries, the

criteria the choice of sensors is introduced and reviewed in terms of type,

number and layout. At the end, it is recommended to use appropriate

sensors and appropriate combination of sensors for long-term monitoring

of health and diagnosis of damage to the platform in the Persian Gulf.

Keywords: Structural Health Monitoring, Marine Platform, Dynamic

Response, Damage Detection



135 | P a g e

Study on Transient And Stationary Response Of

Jack-Up Platforms

Saghy Saeidtehrani1, Behrouz Asgarian2, Mohammad Daghigh3,

Fereydoon Kiaei4 1Port and maritime organization; [email protected]

2K.N.Toosi University of Technology; [email protected]

3Pars oil and gas, [email protected]

4 Javab consulting engineers

Abstract

This study investigates the effect of nonlinearities on the maximum

response of Jack-up platform to waves. The total response incorporates

two components, transient and stationary; which the transient response can

be highly affected by the presence of some special wave periods depending

on the period of the structure. Five foundation models including: perfect

hinge and fix bases and more advanced models based on soil properties

including linear springs & nonlinear springs with strain hardening

plasticity models and a hinge base with linear rotational spring were

incorporated in F.E models of structure. The effects of these support

conditions on the maximum dynamic response are studied in detail.

From the results of deterministic dynamic analysis for the waves with the

heights 0.25 m to 12.25 m, it was concluded that change in the transient

response are extremely dependent on the nonlinearity involved in the

response which are due to numerous sources in the structural behavior such

as geometrical, soil-structure-wave interactions.

Keywords: jack up, stationary response, transient response, nonlinear

dynamic behavior




136 | P a g e

Optimization And Automation Of Slipway Marine

Repairs (Case Study: Slipway Of Shahid Rajaee

Port)

Hamed Asadi1, Mahboobeh Asadi2

1M.Sc. in Mechanic Iratec consulting engineers; [email protected]

2B.A. Bussiness Management, University/Institute; [email protected]

Abstract

The ship repair industry is always one of the most profitable industries,

and most importantly, employment among the various industries, due to

the need and requirements of classification rules. In such a way that with

the initial cost less than the other industries, there is a possibility to return

the capital principle in the short run and to create more jobs with proper

and principled planning. Achieving these goals requires compliance with

the requirements while increasing the productivity of each industry with

the need of the day. In such a way that any industry or commodity is

condemned to failure in the event of its lack of growth and promotion in

accordance with market demand. The subject discussed in this article after

introducing a brief overview of Shahid Rajaee harbor repair slipway and

its defined function, explores solutions to eliminate bugs and change the

methods of execution in order to increase productivity, attract more market

share, create more prosperity and create more jobs, And will address the

proposed and applicable solutions.

Keywords : slipway, optimization, productivity, job creation,

Instrumentation and control methods Marine navigation, communication and electronics Composite and new material Robotic and underwater equipment Fishing and aquaculture methods Marine renewable energy New Methods of Exploitation for Marine Biological

and Non-Biological Resources

Marine renewable energyand new technologies9 Instrumentation and control methods Marine navigation, communication and electronics Composite and new material Robotic and underwater equipment Fishing and aquaculture methods Marine renewable energy New Methods of Exploitation for Marine Biological

and Non-Biological Resources

Marine renewable energyand new technologies9



137 | P a g e

Large-eddy simulation of flow around a sphere:

Comparing cavitating and non-cavitating

conditions

Mohammad-Reza Pendar1, Ehsan Roohi2

1 Ph.D. Student, Department of Mechanical Engineering, Ferdowsi University of

Mashhad; [email protected]

2 Associate Professor, Department of Mechanical Engineering, Ferdowsi University of

Mashhad; [email protected] Abstract

In this work partial and supercavitation over a sphere at a constant

Reynolds number of 1.5×106 and a broad range of cavitation numbers

(0.36<σ<1) was examined. Large eddy simulation (LES) and Sauer mass

transfer model were used to simulate the dynamic and unsteady cavitation

around the sphere. Also, the compressive volume of fluid (VOF) method

is used to track the cavity interface. The two-phase flow solver of the

OpenFOAM package, intephaseChangeFoam is employed. Large-eddy

simulation of cavitating flow over the sphere is compared with the non-

cavitating flow at the same Reynolds number. This work provides a

thorough understanding of the fluid dynamic characteristics of the sphere

cavitation such as turbulent kinetic energy, pressure, streamlines and

boundary layer. Also, detailed analyses of the instantaneous cavity leading

edge and separation point location, vortex shedding, streamwise velocity

fluctuation and evolution of the cavity are reported. We report that

cavitation suppresses instability in the near wake region and delays the

three-dimensional breakdown of the vortices. The volume fraction

contours of the cavity cloud obtained from the numerical simulations are

compared with the experimental data at the same working condition with

a suitable quantitative accuracy.

Keywords: Unsteady Cavitation, Sphere, Large eddy simulation (LES),

Wake, Vortical structure.

Marine Industries Conference th9Abstract Book of 1 Iran d, Kish Islan – 14 Dec. 2017-11


138 | P a g e

Effect of convergent duct on performance of

Darrieus vertical hydroturbine

Mofid Gorji Bandpay 1, Hossein Bardide 2

1 Department of Mechanical Engineering, Babol Noshirvani University of Technology;

2 Department of Mechanical Engineering, Babol Noshirvani University of Technology;

[email protected]

Abstract

Nowadays, researchers trying to use the energy of free waters through the

energy conversion devices. Vertical axis turbines are suitable instruments

for converting the energies of rivers, oceans, and tidals. Though Darrieus

turbine is very simple to construct, it has some disadvantages when

compared to axial turbines. These are a lower power coefficient and a

variation in the torque produced within the cycle leading to periodic

loading on the components of theturbine. One of the goals of this project

is increasing the turbine’s power factor with regards to decreasing the

ripple of the torque in one cycle. In this study, a crossflow vertical axis

water turbine (Darries) was simulated using computational fluid dynamics

(CFD). For improving the performance of the turbine, a convergent duct

was used around the turbine and the torque factor was measured at

different rotational speeds. In the tip speed ratio equal to 2 , highest torque

factor with regards to the lowest torque ripple of the torque diagram was

obtained. Power factor increased 16% by using the duct in this tip speed

ratio. Then changes in the torque factor by altering the parameters of the

blade’s profile was evaluated.

Keywords: Darries turbine, Computational fluid dynamics, k-ω sst

turbulent model, Tip speed ratio



139 | P a g e

Direct Numerical Simulation Of Wall-Normal

Rotating Turbulent Channel Flow Drag-Reduced

By Hydrophobic Coating

Hamid Jahankohan1, Amin Moosaie2

1 MSc Graduate, Mechanical Engineering Department, Yasouj University;

[email protected]

2 Assistant Professor, Mechanical Engineering Department, Yasouj University;

[email protected]

Abstract

In the present paper, a direct numerical simulation of drag reduction in a

turbulent channel flow rotating about its wall-normal axis with one

hydrophobic wall is presented. Three-dimensional and time-dependent

Navier-Stokes equations are numerically solved. To model the effect of

hydrophobic coating on the wall, a wall velocity slip condition is used on

the bottom wall. To validate the numerical code, an analytical solution is

developed and used. Then, the developed code is used to study the

turbulent channel flow at a shear Reynolds number 180 with rotation about

the wall-normal axis, at various Trostel numbers and a constant rotation

number. The results of the simulation are presented and discussed.

Keywords: turbulent channel flow, direct numerical simulation, slip

boundary condition, hydrophobic coating, rotating channel flow.



140 | P a g e

Design and Evaluation of Monopile as Offshore

Wind Turbine Substructure in The Persian Gulf

Parisa Ghahari1, Mohammad Reza Bahaari2

1MSc in Offshore Engineering, University of Tehran; [email protected]

2 Professor, University of Tehran; [email protected]

Abstract

Currently, monopile is the most frequently used offshore wind turbine

support structure. This substructure consists of simple tubular sections

driven into the seabed and is suitable for a depth of 25 meters. The purpose

of this paper is to design, analyze and evaluate a monopile as a substructure

for an offshore wind turbine of 5 megawatts capacity in Dorood region

with a depth of 30 meters. Necessary analyses for evaluation of the

structures’ strength, displacement, and fatigue damage under wave, wind,

and current loading have been performed using SACS software and the

results were verified in ANSYS software. Subsequently, the feasibility of

implementing this structure in Iran has been investigated based on the

approximate costs of the project and the required facilities and equipment.

Preliminary design shows that for such an environmental conditions, a

monopile with 6.5 meters diameter and 38 meters penetration depth is

required. These dimensions challenge the current capacity of fabrication

and installation methods and vessels. The lack of these facilities makes the

project nonfinancial and costly in Iran.

Keywords: offshore wind turbine, support structure, substructure,

monopile



141 | P a g e

Selecting Optimum Location For Co-Located Wind

And Current Renewable Marine Energy Farms

Mohammad Hosein Aghvami1, Mohammad Raie2 1MSc Student, Civil Engineering Department, Sharif University of Technology;

[email protected]

2Assistant Professor, Civil Engineering Department, Sharif University of Technology;

[email protected]

Abstract

For evaluation of using wind and current marine renewable energies, as

co-located offshore energy farms, Persian Gulf waters near the Bushehr

province coast were selected. First, due to technical limitations, a specified

strip of depths of 20 to 35 meters and at a distance of 10 to 40 kilometers

from the coast was selected as a suitable place for the construction of co-

located farms. The required wind and current data were prepared using

related databases. Then the type and arrangement of turbines in each

computational mesh unit were determined. By applying the required

information and using the power calculation relationships on the

computational mesh, the results of the mesh are determined and mapped

by various statistical indices. In this method, in addition to the individual

evaluation of resources by mean annual extraction power, with using an

index, correlation between the powers of two different sources was also

determined and mapped. Finally considering synergy between energies

and with balancing different effective parameters, an index with the name

of co-location feasibility index was introduced. As result, with this index

different areas for the construction of farms was rated and suitable areas

for the construction of co-located farm was proposed by a map.

Keywords: Marine Renewable Energies, Offshore Energies, Co-located

Energy Farms, Wind Power, Current Power, Co-Location Feasibility

Index.



142 | P a g e

Experimental study on the performance of a fixed

Oscillating Water Column

Hossein Yazdi1, Rouzbeh Shafaghat2, Rezvan Alamian3

1MSc. Student, Sea-Based Energy Research Group, Babol Noshirvani University of


2Assistant Professor, Sea-Based Energy Research Group, Babol Noshirvani University

of Technology; [email protected]

3PhD, Sea-Based Energy Research Group, Babol Noshirvani University of Technology;

[email protected]

Abstract

Concerns about the global warming and environment pollution, as well as

loss of fossil resources, make renewable energies as an absolute necessity.

Ocean energy is an important kind of renewable energy which has been

extracted in various ways. Oscillating Water Columns (OWCs) installed

on the shore are one of the wave energy absorption systems which has been

paid attention due to its low operating cost and easy maintenance. In this

research, a fixed model of an OWC has been designed and tested in a wave

tank. The effect of variations in the wave frequency, draft (distance

between the water surface and edge of the front wall) and also diameter of

the air outlet have been investigated on the pressure inside the chamber,

the flow rate of the exhaust air and the pneumatic power. The results show

that increasing the draft and wave frequency to a certain value will increase

the pneumatic power and after that it will cause an decrement in the

pneumatic power. Moreover, according to the results for two different

diameters of the air outlet duct, it was observed that the pneumatic power

of the small one is bigger.

Keywords: Oscillating Water Column, experimental test, wave tank,

geometrical optimization.



143 | P a g e

A Study on Applying Underwater Acoustic

Wireless Sensor Networks in Oersian Gulf

Reza Javidan1,Hamideh Rafie2

1Shiraz University of Technology; [email protected]

2Msc Graduated in Software Computer Engineering; [email protected]

Abstract

Todays, applying underwater acoustic wireless sensor networks

(UAWSNs) has essential role in underwater exploration and

communication.The most of current researched in this field focused on

designing and managing such networks and less attentions made for their

weakness.high power transmission rate, multipath signal transmission,

attenuation, limited bandwidth, low data rate and high delay make them

appropriate for possible fault and attacks. Moreover, because of different

transmission media, usual air based methods can not be applied for

UAWSNs. In addition, Persian Guld is a shallow water and multipath case

is worth in such environment. In this paper a comprehensive study of

security challenges if such networks is performed and the proposed

solutions help to have a secure channel for UAWSNs. The results sgow

the effectiveness of the proposed method.

Keywords: Undewater Acoustic Sensor Networks, Security, Encription,

Attack



144 | P a g e

The Investigation Of Using Flow Amplifier System

And Its Performance Evaluation For Underwater

Propulsion

M. Gandomkar1 , J. Amini Foroushani2

1 Assistant Professor, Department of Marine Science and Engineering, Malek-e Ashtar

University of Technology, Iran

2 Researcher, Faculty of Underwater Sciences and Technologies, Malek-e Ashtar

University of Technology, Iran

Abstract

In this study, the usage of Coanda effect and its performance for

underwater propulsion has been evaluated experimentally and

numerically. In this system, air flow amplifier part is used and called water

flow amplifier system and thrust is produced by putting the flow amplifier

system in water environment and pumping water instead of air. To evaluate

the performance of this system, at the first Bollard pull test has been done

and the results have been compared with numerical results using

computational fluid dynamics. Then a comparison has been carried out

between this system and the commercial propellers for non-zero speed

water. It has been shown that by using this system as a thruster for

underwater applications, the thrust can be generated about the same

compared with a commercial propeller with the same diameters. The usage

of this system as a thruster may be associated with some advantages, such

as lack of sensitivity to pollution and suspended particles in water, no need

to neutralize the torque generated by the rotating propeller and production

of propulsion without causing cavitation.

Keywords: Flow amplification; Coanda effect; Underwater thruster;

Bollard pull; CFD;



145 | P a g e

A Comparative Study for Selection of Suitable

Substructure for an Offshore Wind Turbine

Parisa Ghahari1, Mohammad Reza Bahaari2

1MSc in Offshore Engineering, University of Tehran; [email protected]

2 Professor, University of Tehran; [email protected]

Abstract

The use of wind energy to generate electricity is an old and growing

industry. In recent years, with onshore wind farms being well-spread,

considerable attention has been paid to offshore wind farms development.

Due to the availability of rich offshore wind sources in the Persian Gulf,

necessity of fossil fuel deduction as well as the lack of fundamental

research in this field, the study of offshore wind turbines and their support

structures is essential. The objective of this article is to provide basic

knowledge regarding the history of offshore wind industry, the importance

and performance of the offshore wind turbines, different types of

substructures and their pros and cons, the investigation of economic and

executive issues related to the three fixed substructures. Selection of the

preferred option should be based on comparison and evaluation of

preliminary designs and overall weight of the structures, the cost of

fabrication and installation, availability of facilities in the yard, needed

equipment and vessels and previous records.

Keywords: wind energy, offshore wind turbine, offshore wind farms,

support structure, substructure



146 | P a g e

Numerical Simulation of Tidal Turbine Using Mrf

Model Hamid Kazemi Moghadam1, Rouzbeh Shafaghat2, Rezvan Alamian3,

Ali Asemi4, Seyed Mohamad Taheri5, Hoseyn Akhoundpour Amiri6 1MSc of Mechanical Engineering, Sea-Based Energy Research Group, Babol

Noshirvani University of Technology, [email protected]

2Associate Professor of Mechanical Engineering, Sea-Based Energy Research Group,

Babol Noshirvani University of Technology, [email protected]

3PhD of Mechanical Engineering, Sea-Based Energy Research Group, Babol

Noshirvani University of Technology, [email protected]

4MSc of Electrical Engineering, Sea-Based Energy Research Group, Babol Noshirvani

University of Technology, [email protected]

5MSc of Physics, Sea-Based Energy Research Group, Babol Noshirvani University of

Technology, [email protected]

6MSc Student of Biomechanical Engineering, Iran University of Science and

Technology, [email protected]

Abstract

In recent years limitations of non-renewable resources, high production cost and

also adverse pollution effects on the environment led us to renewable energies.

One of the most important renewable energy resources are sea-based energies and

water currents. So far different approaches are studied in order to use the sea-

based energies. One of these approaches is the use of wave energy and sea

currents. These very currents carry high amounts of kinetic energy. Obtaining

energy from sea currents is similar to wind energy harnessing. Therefore it has

been done by a turbo machine which is similar to wind turbine. Horizontal axis

turbines are the most common types of marine turbines which have a similar

design to wind turbines. Considering our country's sea-based energy potential and

capacity, the purpose of this paper is to design and simulate a marine turbine to

capture energy from sea currents. After some research on marine turbine we chose

a three bladed horizontal turbine and designed hydrofoil sections and its blade

pitch angles by the use of simulation. In the following, we evaluated the turbine's

performance by MRF modeling using ANSYS-Fluent software for different free

stream and rotational speeds. We reported estimated power and turbine's different

parameters which affect its performance in several situations. Finally we have

observed from the simulations that the most efficient AoA is 7 degree relative to

the hub. Also, the turbine power is reported at a flow rate between 0.5 to 2 m/s in

watts.

Keywords: Renewable Energy, Tidal Turbine, MRF, ANSYS Fluent.



147 | P a g e

Introduce Powerships

Sajjad hajizadeh1, Mohammad mehrpouya2

1Persian Gulf University; [email protected]

2Persian Gulf University; [email protected]

Abstract

A fossil fuel power station is a power station which burns fossil fuel such

as coal, natural gas, or petroleum to produce electricity. Fossil fuel power

stations have machinery to convert the heat energy of combustion into

mechanical energy, which then operates an electrical generator.

This article concerns the type of floatable structure, on which a main power

of electricity generator is planted, which can be berthed alongside a pier

and connected to a national grid to supply electricity to a city. It is obvious

the owner/operator of this kind of floating structure might have had the

benefit of her navigation availability and usage by virtues of sending her

to any destination port where an urgent electricity supplier is in need.

Keywords: Power Barge, Self-Propelled, Transportable, Demand, Power

Plant, Power Ship, Floating Power Plant



148 | P a g e

Optimum Design Of Polymer Fuel Cell For Use In

Submarine Hamed Shahri1, Mohsen Hosseini2

1graduate student, Khajeh Nasir Toosi University OF Technology;

[email protected]

2Electrical engineer, Imam Hossein University; [email protected]

Abstract

Today, usual submarines have Diesel-Electric system. In order to recharge

the batteries, submarine should moves up to the water surface several times

in order to be charged by its generator. This can be dangerous since the

submarine might be delectable by the enemy. So air independent

propulsion systems (AIP) are more preferable today. Such systems can

produce electric power to recharge batteries, propulsion system and also

other electric equipments under water situations. One of these AIP systems

is fuel cell in which the chemical energy of the fuel is converted to the

electric energy. The most important type of the fuel cells in this application

is proton exchange membrane fuel cell (PEMFC). In this paper a fuel cell

hybrid electric propulsion system is designed and modeled for marine

applications especially for submarines. Design and modeling is done with

COMSOL software. First the required polymeric fuel cell is designed for

propulsion system in a submarine with specified power range. By

determining all of the required parts in such system, the governing

equations for these parts are modeled consisted of electrochemical

equations and fluidthermal equations. This model can predict

electrochemical and thermo dynamical parameters in different operational

situations. With this simulation the user can watch the effect of different

parameters in the final operation and this can be helpful in better and more

precise designing before construction. The results show that parameters

like temperature and pressure have an important role in the system

efficiency.

Keywords: Submarine, Fuel Cell, Air Independent Propulsion System,

COMSOL



149 | P a g e

Study on Increasing The Efficiency Of Heat

Exchangers In Ships By Nano-Fluid

Reza Balali Dehkordi1, Abass Asadroz2, Mohamadamin Dshtegoli3

1 PhD student in Energy Conversion Mechanics; [email protected] 2 Head of the Kharg Island region; Ph.D. student of strategic management

3 Iranian Oil Terminals Company;

Abstract

Nanosilicon is a sustainability suspension that is made by uniformly

dispersing nanoparticles in a fluid. Because of its high stability, particle

size and the inherent nature of thermal conductivity in solids, its thermal

conductivity has been improved considerably, so its application in

converters Thermal is good. Considering that nanosilicates that have better

thermal transfer properties and higher thermal conductivity will be more

suitable for increasing the heat transfer fluid heat transfer coefficient.

Examining their thermal properties as one of the important study and

experimental axes has attracted a lot of research in recent years. Has

attracted itself. The results show that increasing discharges and nanosilver

concentrations have a significant effect on increasing the transfer heat

transfer coefficient and the nanoparticle size used to create a nanosilial in

the range of 20-50 nm has a more favorable effect on increasing heat

transfer. The change in the temperature of the nano-fluid into the heat

exchangers in the range of 10 ° C does not affect the heat transfer

coefficient so much. If suitable conditions are provided, an increase of

about 60% -50% for the transfer coefficient of the nanofluids is reported

relative to the base fluid

Keywords: Heat Transfer, Nano-Fluid, Heat Exchanger, Heat Transfer

Coefficient



150 | P a g e

A Comparative Study About Outboard Motors

Modern Technologies

Hojjat shabgard1, Hamed Soleimani2, Masoud Nazari3 1PhD Candidate of Mechanical Engineering, University of Birjand;

[email protected]

2Master of Science of Metallurgy Engineering; Ferdowsi University of Mashhad

3PhD Candidate of Marine Engineering, Amirkabir University of Technology,

[email protected]

Abstract

This paper discusses about mid-range outboard motors technical

specifications. The most famous brands like Mercury, Yamaha, Suzuki,

Honda, Tohatsu were considered in this study. Design parameters like

weight, power, power to weight ratio, cylinder number and etc. of engines

were compared together. According to the results, some design

requirements and the modern technologies used in this motors were

detected. These information helps the designers to know the limitations

and borders of design.

Keywords: Outboard Motors, Design Requirements, Power to Weight

Ratio,



151 | P a g e

Technical And Economical Feasibility Study Of

Offshore Wind Turbine In Iran

Amir Mohammad Fathi1, Roya Shademani2,Abolghasem Sharayei3

1MSc in Renewable Energy Engineering, Science and Research Branch of Tehran;

[email protected]

2 PhD in Marine engineering-Ship hydromechanic, Amirkabir University of


3PhD student of Information Technology Management, Science and Research Branch

of Tehran; [email protected]

Abstract

Due to the non-renewable and polluting characteristics of fossil fuels and

the need for renewable resources in near future, implementing solutions

for economic development of renewable energy technologies is regarded

as a priority policy for different countries. One of the sources which have

been the focus of attention in recent years has been offshore wind power

which is investigated in this research. Iran has many marine resources, so

there is the potential of offshore wind. This research investigated the

techno-economic feasibility of offshore wind power systems. Based on

assessing the potential, Kish island has been recognized to be a suitable

location for offshore wind power systems. Additionally and based on

economic calculations, offshore wind power systems are economically

feasible if implemented in large scales and as a result can be considered as

a promising option to satisfy energy requirements of offshore regions.

Keywords: Wind turbine, Offshore, Feasibility, Renewable





152 | P a g e

CFD Simulation Of Resistance Reduction For A

Multipurpose Amphibious Vehicle Using Air

Cushion Effect Adi Maimun1*, Mehdi Nakisa2, Fatemeh Behrouzi3

1Marine Technology Centre (MTC), Universiti Teknologi Malaysia (UTM), Johor,

Malaysia, [email protected]

2Department of Mechanical Engineering, Bushehr branch, Islamic Azad University,

Bushehr, Iran, [email protected]

3Department of Mechanical Engineering, Bushehr branch, Payame noor University,

Bushehr, Iran, [email protected]

Abstract

Multipurpose Amphibious Vehicles (MAV) and other blunt shaped

floating vehicles encounter the problem of a large bow wave forming and

hydrodynamic resistance at high speeds. This wave formation is

accompanied by higher resistance and at a critical speed results in bow

submerging or swamping. Three new shapes of hull bow design for the

multipurpose amphibious vehicle were conducted at several speeds to

investigate the hydrodynamic phenomena using Computational Fluid

Dynamics (CFD, RANS code), which is applied by Ansys-CFX14.0 and

Maxsurf. The vehicle’s hydrodynamic bow shapes were able to break up

induced waves and avoid swamping. Comparative results with the vehicle

fitted with U-shape, V-shape and Flat-shape of hull bow, showed that the

U-shape of the hull bow has reduced the total resistance to 20.3% and

13.6% compared with the V-shape and flat shape respectively.

Finally, the MAV will be supported using air cavity and bubbles generated

by an air pump (compressor and air pressure vessel) to pushes the hull of

multi-purpose amphibious vehicle up and reduce the frictional resistance

due to draft and wetted surface reduction and layer of air between hull

surface and water. This research would be done via CFD (ANSYS-CFX

14.0) and analyzed the hydrodynamic resistance changing.

Keywords: Air Bubble, Hydrodynamic Resistance, CFD, Multi-purpose

Amphibious Vehicle.




Supply and demand of marine expert manpower Marine industrial workers and seafarers problems Marine social and culture resources Seafaring and marine engineering education

Human resources10 Supply and demand of marine expert manpower Marine industrial workers and seafarers problems Marine social and culture resources Seafaring and marine engineering education

Human resources10



153 | P a g e

Investigating The Status Of Seafarers' Problems In

Non-Convension Vessels

Iran Baraee, Mehdi Farahani, Haysam Amerian

Abstract

About 90% of the world's freight is transported through the sea, while

humankind is not well acquainted with men who have a huge share in the

world trade cycle. It should be noted that what is the interest of sailing in

the twenty-first century, in the world of humanity and in the process of

advancing towards globalization. To overcome the problems of the sea and

to properly fulfill the responsibilities, modern sailors should be trained,

healthy and mentally sound. The social life of seafarers is a complex life

and is influenced by their performance. The social environment of

seafarers has two main components: one in terms of work and living

conditions on board, and the other is related to distance from the family,

which, of course, are both interrelated and reduce productivity and increase

the risk of accidents and illnesses Gets. The purpose of this study was to

investigate the problems of seafarers in non-convension vessels. The

method was qualitatively and through non-structured interview (open). In

this study, the problems of living in the sea were identified and in the end,

suggested solutions were proposed to make the living conditions of

seafarers more appropriate.

Keywords: Seafarers, non- convension vessels, transportation, problems



154 | P a g e

Investigating The Effective Components In

Increasing The Level Of Seafarer Training In Non-

Canning Bunkers In Khorramshahr Port

Mojgan Ghobadi, Haysam Amerian, Iran Baraee

Abstract

Improving the level of training of seafarers in non-Conventional vessels is

one of the major issues that should be taken into consideration because in

some of the ports and inland waterways most of the traffic is related to

these vessels. Also, the number of non-nuclear floats under the Iranian flag

is more than conventional harbors. In this research, we try to find out the

effectiveness of identifying the factors affecting the increase of the

awareness of the seafarers of these vessels, identifying the problems and

providing solutions to solve each of the problems, and finally, by providing

a solution A strategy to increase the coordination between these factors is

a positive step towards improving the level of training of non-

Conventional naval seamen, taking into account all aspects.

Keywords: Non-Conventional Floating, Teaching, Effective Teachin

Documents

th - iraname.comiraname.com/book/proceedings/MIC2017En.pdf · Seyyed Jalil Mousavi, Mohammad Amir Siavash Haghighi, Mehdi Darabian, Seyyedeh Fatemeh Mousavi, 6 The role of knowledge