Appendix 3 (English version) · Appendix 3 (English version) AUTOPRESENTATION Jakub Łagodziński, PhD Institute of Turbomachinery Division of Diagnostics And Automatics of Turbomachinery

Appendix 3 (English version)

AUTOPRESENTATION

Jakub Łagodziński, PhD

Institute of Turbomachinery

Division of Diagnostics And Automatics of Turbomachinery

219/223 Wólczanska St.

90-924 Łódź

Łódź, April 2019

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Contents

I. Name and surname .................................................................................................. 3

II. Diplomas and scientific degrees ............................................................................. 3

III. Course of employment – information about past and current employments in

scientific units .......................................................................................................... 3

IV. Presentation of the scientific achievement ............................................................ 3

A) Title of scientific achievement .................................................................................... 3

B) Description of a monograph as the scientific achievement ......................................... 3

1. Overview of the scientific aims of the above-mentioned works and the results obtained ......................................................................................................................... 4

V. Overview of other scientific and research accomplishments ............................. 13

A) List of other (not listed in point 4b) published scientific works and indicators of

scientific achievements ............................................................................................ 13

1. Monograph, chapters in books, PhD dissertation ................................................13

2. List of other papers (not included in the scientific achievement listed in point 4) published in international scientific journals from the database of Journal Citation Reports (JCR) ...............................................................................................................13

3. List of other papers (not included in the scientific achievement listed in point 4) published in the scientific journals beyond the database of Journal Citation Reports (JCR) 17

4. List of conference reports ...................................................................................20

5. Summary of publication achievements ................................................................21

VI. Didactics and science popularization achievements .......................................... 22

A) International and national research projects management and participation ............ 22

B) Implemented original design, construction and technological achievements ............ 24

C) Awards and distinctions ........................................................................................... 24

D) Reviewing of manuscripts for international and national scientific journals ............... 24

E) Expertise or other studies made to order .................................................................. 25

F) Supervising of PhD students as a supportive supervisor .......................................... 26

G) Achievements in didactics and popularization of science ......................................... 26

VII. Summary of scientific, engineering and other accomplishments ..................... 27

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I. Name and surname

Jakub Łagodziński

II. Diplomas and scientific degrees

2006 – M.Sc. diploma, Faculty of Mechanical Engineering, Lodz University of

Technology, course of Mechanical Engineering, specialization: Power Systems,

Machines and Devices. Final thesis entitled: „Emergency boiler feed pump of

360MW power plant”. Supervisor: Ph.D. Jerzy Staniszewski.

.2009 – Ph.D. in the discipline of Machine Design and Operation, Faculty of

Mechanical Engineering, Lodz University of Technology. Title of the Ph.D.

dissertation: “The unconventional mechanical designs aided by the magnetic

field”. Supervisor: prof. Dorota Kozanecka. Reviewers: prof. Zdzisław Gosiewski,

prof. Władysław Kryłlowicz, (appendix no. 1).

III. Course of employment – information about past and current

employments in scientific units

In the years 2007/2009 – half time Job as an assistant in Institute of

Turbomachinery, Faculty of Mechanical Engineering, Lodz University of

Technology.

Since 01.01.2010 r. - full-time position of an assistant professor; Lodz University

of Technology, Faculty of Mechanical Engineering, Institute of Turbomachinery.

IV. Presentation of the scientific achievement

A) Title of scientific achievement

As the scientific achievement in the discipline of Machine Design and Operation,

a monograph entitled “Foil bearings in turbomachinery” is submitted as the basis to

apply for a title of Doctor of Science.

B) Description of a monograph as the scientific achievement

Author: Jakub Łagodziński, Ph.D.

Year of publication: 2019,

Title: Foil bearings in turbomachinery,

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Book series: Monographs of Lodz University of Technology,

ISBN 978-83-7283-987-9, 172 pages. (appendix no. 4).

Reviewers: prof. Krzysztof Jóźwik, prof. Romuald Rządkowski.

1. Overview of the scientific aims of the above-mentioned works

and the results obtained

Reference numbers in square brackets [ ] are linked specified publications listed

in further chapters of this self-presentation.

Introduction

The progress of a civilization is always connected with development of new

technologies and modeling methods of complex physical phenomena. Modern

construction materials and modern manufacturing technologies make the design of

present machines and devices more and more interdisciplinary science, requiring

involvement of knowledge and experience of more and more experts from many

different areas. Difference between their real implementations makes the analysis of

phenomena that may appear during the exploitation hard and complex.

In searching for brand new design solutions for high-end machinery, the attention

of the design engineers became focused on unusual technologies of rotating shaft

supports. The bearings and supports that use unusual rule of operation or

uncommon lubricating medium are called “unconventional”.

Bearings are parts of machines that allow for relative movement of the elements.

In every fluid flow machinery, the shaft is supported in some kind of bearings that

keep it in place and don’t allow for radial or axial displacement. What is more, during

machine operation, a many external loads can appear. These loads can be caused

by a flowing medium, unbalance or external forces. The other important role of the

bearings is to transfer the loads from rotor to a casing. Moreover, the properties of

the bearings have significant influence on rotor stability, and that fact is especially

important for high speed turbomachinery.

The main classification of the bearings depends on their way to transfer the

forces from the rotor to the casing. They can be divided into following groups:

Rolling element bearings

Fluid lubricated bearings

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Gas lubricated bearings

Unconventional bearings (i.e. active magnetic bearings)

Most of design solutions applied in huge industrial turbines, pumps and

compressors utilize hydrodynamic oil bearings, where the lubricating film is

generated due to rotational movement of the shaft.

Conventional bearings work well in most typical design solutions. However, there

is an overall tendency to go up with nominal rotational speed of turbomachinery. This

is mainly caused by the economics, related to increasing of overall efficiency of the

machines and simultaneous decreasing of their dimensions.

Moreover, dynamic development of dissipated power generation systems leads

to increase in interest in small power turbomachinery, which is relatively small in size.

Willingness to increase the efficiency of power turbomachinery and modern solutions

of microturbine drives generate the demand for modern shaft support methods. A

high speed machine rotor supported in classic oil bearings implicates significant

increase in hydrodynamic losses inside the oil film. This can lead to loss of rotor

stability, bearing failure due to excessive vibration or simply premature wear of the

bearing surfaces. For this reason, an application of conventional bearings for these

operating conditions is hard or near to impossible to be implemented.

Along with the development of new technologies and new materials, the

application of the bearings utilizing unusual lubricants or operating principles became

possible. The unconventional bearings, i.e. active magnetic bearings, started to be

used. Other unusual types of bearings use gaseous or liquid phase of working

medium from the machine flow.

These unconventional bearings are often designed for a specific application, and

are able to operate in designated technical solution in the machine with special

requirements. They are applied in special conditions, where application of standard

bearing solutions is hard or almost impossible. The special technical requirements

related to operating conditions of some turbomachines often exclude the possibility of

using oil as a lubricating medium and thus, in effect they contribute to rapid

development of oil-free technology.

An important part of the development of this technology is owed to gas lubricated

bearings. The individual technical solutions related to development and applications

of the gas bearings in turbomachinery depend on their allocation, rotational speed,

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power and finally, the type of machine working medium. For many years, the gas

bearings have been developed in many research facilities worldwide, being involved

in implementation of these unusual supports in industrial applications.

Also in Institute of Turbomachinery, Lodz University of Technology (IoT, LUT), in

the labs of Division of Diagnostics and Automatics of turbomachinery, research

programs on unconventional bearings in fluid flow machines have been performed for

many years.

One of developed types, for example, are aerodynamic gas bearings, which,

similarly to hydrodynamic bearings do not require external pressurization. These

bearings are interesting alternative in the designing of small, high speed

turbomachinery. The pressure inside the convergent air gap is generated due to

relative movement of the shaft and the sleeve.

Continuous and stiff gas film is present at high journal rotational speed, and

therefore the area of applications is limited to, small and compact high speed rotors.

This fact allows to build hermetic machines, where there is no need to use seals and

protrude the shaft from the casing. There is also no need to separate the bearings

lubrication system from the process side of the machine.

From the operational point of view, a machine designed in according to this

philosophy, allows to eliminate many problematic and unreliable elements. These

machines can be smaller, lighter and cheaper in opposite to the classic ones.

To build the hermetic machinery it is necessary to master the technology of

design and construction of unconventional, high speed aerodynamic bearings, that

will be reliable and will provide low frictional losses.

The main problem related to application of unconventional lubricating medium is

a realistic evaluation of operational risk related to reliability and safety under different

operating conditions.

Moreover, the unconventional bearings may be an origin of several limits and

obstacles related to their proper operation. They require special technical solutions

and trustworthy design method for demanded reliability. Correct evaluation of

operational risk related to oilfree machine design requires experience, knowledge

and understanding of principles determining the functioning of its components. This

evaluation requires also gathering the knowledge from experimental research in

laboratorial and close to real operating conditions.

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The theoretical and experimental research performed in IoT LUT on

unconventional high speed bearings points clearly, that real and, what is important,

relatively cheap alternative in support of the shafts of some selected turbomachinery

are the gas foil bearings.

Aim and scope of the research

I started my research on foil bearings almost right after getting my PhD diploma.

It was related to the Key Project tasks, led by Institute of Fluid Flow Machinery, PAS

in Gdansk. The carried tasks required the elaboration of concept design of high

speed, hermetic, oil-free turbogenerator. One of the variants assumed use of the foil

bearings in rotor support. Unfortunately, it turned out that the turbine has to low

startup torque to overcome frictional torque of the bearings. In effect, the

turbogenerator was built as a machine with aerostatic bearings pressurized with

gaseous fraction of working medium. However, the foil bearings turned out to be such

a promising and perspective way of development, so an independent research

program was started.

The research I carried out were a continuation of multi – year IoT TUL tradition in

research programs on different types of gas bearings. Over many years, in

laboratories of IoT, many successful designs of spindles, drill machines and

microturbines were built. The rotors of those machines were supported in gas

aerostatic or aerodynamic tilting pad bearings.

Widening area of foil bearings applications and increasing involvement of many

scientific facilities in those unconventional support research became an inspiration for

establishing own knowledge base considering the manufacturing technology and

implementation of these technical solutions into the turbomachinery. The foil bearings

“know-how” is considered as a domain of a very few companies worldwide, mainly

from South Korea and United States. It would be a great achievement to develop

similar level of this technology in Poland.

The experimental research program I carried out covered both areas of thrust

and radial foil bearings. The other branch of gathered knowledge were numerical

simulations of a structure of foils and a gas film.

The modeling of the foil bearing properties is a difficult task, and so far, both

components were modeled independently. The next step, considered as a future goal

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of improvement, will be a development of a conjoined numerical model, consisted of

a gas film and foil structure models, with full interaction between them.

Due to difficulty in numerical modeling of these unconventional supports, basic

knowledge is gathered by experimental research. In my work, I performed many

experiments that allowed me to estimate the bearing properties or observe unique

phenomena during their operation. Throughout many years I researched many

operational properties and construction detail. Below I listed and shortly described

the researched issues:

The influence of technology procedures and the manufacturing details, including

types of coatings deposited on the shafts and the top foils [B1]. The foil

manufacturing technology was improved, the main focus was devoted to the

details, i.e. the foil setting slots geometry or resistance welding method. These

improvement allowed for optimal shape of thrust bearing pads, leading to the

stable gas film formation.

Bearing operation under heavy load conditions, with accelerated coating

degradation and dissipation of huge amounts of heat. To perform this, I have built

a test bench with electric spindle with attachment for sleeve or the thrust plate.

Then, I applied a significant load (tens of Newtons) [A6]. In this config, a

frictional torque was measured and visual evaluation of top foil coating

degradation was performed. Under heavy loads, the physical limits of these

bearings were determined. A map of dissipated power losses was also

generated.

Foil bearing “thermal runway” phenomenon. This event has a positive feedback

character and can lead to failure in a very short time. For better observation of

this phenomenon in controlled conditions, an overload test of relatively tight radial

bearing was performed. The development of the thermal runaway was thoroughly

researched and documented. Moreover, some early symptoms of its incoming

were identified. During this experiment, an IR camera was also used.

Gas film development during the bearing startup, measurement of air gap

thickness and pressure distribution in the gas film. For this purpose, a special

sleeve with optical, high resolution (±0,2 µm) displacement sensors was built.

The sensors measured the top foil deflection, caused by the gas pressure

generation in the airgap. The sleeve was also equipped with the pneumatic

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connector attached directly to an orifice in the top foil. The described method

allowed for direct pressure measurement in the gas film. From this research

came off a conclusion, that gas film development process has three stages. The

most interesting fact in the gas film pressure measurement, is the presence of

underpressure in some part of the gas film (part of the airgap opposite to the

applied load direction).

Improvement of the radial bearing, consisted of additional “intermediate” foil,

squeezed between the top foil and bump foil. The experimental results proved

that this modification increases the coefficient of the bearing load capacity,

prevents from “sagging” of the top foil between the bumps, decreases the

frictional torque in the bearing, and in effect decreases the overall power losses

(by approx. 25%). With less losses turned into heat, the bearing has a wider

margin of safety from the thermal runaway occurrence.

Estimation of elastic and damping properties of foil structure. This research

experiment was performed on a special test stand with fixed journal and with

bearing sleeve subjected to external harmonic excitation. These conditions

allowed for elimination of gas film influence. The influence of continuous, stiff gas

film was omitted for two reasons. First, during the operation, the continuous gas

film has relatively high stiffness in comparison to foil structure, and in effect, it

has very little influence on bearing dynamics. Considering the gas film and the

foil structure as two elastic elements connected in series, in fact the properties of

the foil really determine the global stiffness of the bearing. The other reason is

that the numerical analysis of the gas film in aerostatic and aerodynamic

bearings has been widely described in many publications of IoT LUT employees.

One of more interesting examples of publications devoted to gas film numerical

simulations is E. Tkacz PhD dissertation [PROM1]. The experimental estimation

of damping and elastic properties, allowed me for elaboration and verification of

numerical model of foil structure [A9][B7]. The developed model, after proper

tuning, can be successfully applied into complex rotordynamic models of shafts

supported in foil bearings.

Operational properties of a radial blower prototype. In IoT LUT laboratory, a

prototype of the radial blower was built. It was driven by PM synchronous motor

with inverter. The shaft of the blower was supported in foil bearings. The machine

is a demonstrator of high speed oil free bearing technology. It is a tangible effect

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of my multiyear experience in the foil bearings experimental research and

numerical simulations. The test bench allowed me for examination of rotor

behavior, its dynamics in wide range of rotational speed, and influence of load

forces caused by the air flowing through the impeller. The last issue is really

interesting, because I used the susceptibility of the thrust bearing for thrust force

estimation. I designed and tested an unique system of thrust force estimation,

working in real-time during normal operation of the machine. Moreover, on this

test bench, in controlled conditions, I led to heavy overload and destruction of the

thrust bearing. Destruction of the bearing, somehow an unfavorable incident,

revealed another interesting advantage of the foil bearings – their ability to

reduce the range of the damage in the machine. In the mentioned incident, the

only part being destroyed was a set of the top foils, while keeping other elements

unaffected. This unique feature is known as a “soft failure” and is highly

demanded in turbomachinery design.

With my knowledge and experience in field of design and experimental research

of the foil bearings, I was a leader of a few research tasks that were made to order of

external scientific facilities. The main scopes of these tasks were to develop the

optimal foil bearing solutions for a given working conditions, specified by a contractor.

[PB6], [PB7], [PB9].

The experience gathered during the mentioned research tasks resulted in taking

more ambitious challenge which is a development of the bearing support solution for

an electric assisted turbocharger [PB10]. Since February 2019 I have been a leader

of the research project that includes:

Development of the foil bearing technology for rotational speed up to 200 krpm,

Design concept of the machine,

Numerical simulations of bearings load capacity, shaft stress distribution and

rotordynamics,

Manufacturing of the prototype,

Experimental tests in conditions similar to real operating environment,

Implementation of the finished solution in industrial applications – consulting with

the contractor.

The contractor is an international company from aerospace/ motorsport industry

(due to singed non-disclosure agreement, I cannot provide more details).

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The monograph description

The presented monograph (appendix no. 4), being the main scientific

achievement of the candidate, is a summary of scientific experience gathered during

multiyear research devoted to the gas foil bearings in turbomachinery shaft supports.

I this book, some specific design and technology aspects were shown. These

aspects allow the reader to understand the complexity of these seemingly simple

thrust and radial bearings.

The main accent of the monograph is a presentation of theoretical basics and

author’s research, experimental and numerical procedures, that were used in

designing of an unique prototype of radial blower with rotor supported in thrust and

radial bearings lubricated with the ambient air.

The book contains also a history and an origin of these unconventional shaft

supports. I divided their development into three generations of designs and indicated

main differences and their influence on the performance.

Particular chapters of my monograph present in chronological order the

development of theoretical and experimental research, that led to elaboration of own

numerical and design methodology. This methodology allowed for elaboration of low-

cost manufacturing methods. These chapters include:

Gas bearings classification and practical explanation of their operation – in both

aerostatic and aerodynamic solutions,

Introduction to gas foil bearings design, operating principles and manufacturing of

their components. I presented here the main fields of applications of foil bearings

in industrial solutions. I also made, using several technical brochures and

webpages, an overview of the selected oilfree turbomachinery examples in

industry.

Description of typical materials used for foil bearing components, and, what is

more important, selection of proper protective coating layers on the shaft and the

top foil. These essential issues determine the bearing durability and frictional

losses during the startup. In normal operating conditions they determine the

allowable lubricating medium and permissible temperature range.

Description of wide spectrum of performed research experiments of gas foil

bearings. So far, I have examined the load capacity of the thrust and radial

bearings, I have also analyzed the gas development process during the startup. I

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have determined the pressure distribution inside the gas film at different loads

and different shaft rotational speeds.

Modeling processes of the gas foil bearings were presented in the another

chapter. The numerical models of elastic foil structure were developed and

verified on the test benches.

Separate chapter presents a unique radial blower prototype, designed and built

by myself. The rotor of this flow machine is supported in experimentally

developed foil bearings. The chapter contains acquired rotordynamic data, and

presents innovative concept of utilization of thrust bearing susceptibility for real-

time thrust force estimation.

The knowledge gathered in this monograph is very important from scientific point

of view, but also brings many valuable information for applications and exploitation of

foil bearings. In a literature devoted to foil bearings applications and operation, a lack

of practical knowledge related to experimentally verified methods is glaringly evident.

Therefore it is justified to say, that this monograph and its contents represent

noteworthy compendium of knowledge for engineers and researchers, who having in

mind the pros and cons of this technical solution, will select the foil bearings as a

support of their machine rotors, where due to specific conditions, the conventional

bearings cannot be applied.

Overview of the achievements

The results of my research activities and my contribution to development in the

field of Machine Design and Operation include:

Definition of the limits of foil bearing technology,

Implementation of intermediate foil to classical bearing concept. This additional

foil increases load capacity and thermal stability of radial bearing,

Development of thrust force real-time measurement method for a turbomachine,

Performing and recording of thermal runway phenomenon with definition of its

early symptoms

Performing in controlled conditions the destruction of thrust bearing of a blower,

to prove the ability of the foil bearings to “soft failure” feature.

Performing and recording of gas film development process in the radial bearing

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Determining the pressure distribution in the airgap under different loads and

different rotational speeds.

Elaboration of the radial foil bearing global stiffness and damping coefficients

determination method

Elaboration of trustworthy numerical model of elastic foil structure

V. Overview of other scientific and research accomplishments

A) List of other (not listed in point 4b) published scientific works

and indicators of scientific achievements

Full references to citation list of my publications with Impact Factor have been

listed in appendix 8: Publication achievements confirmed on Web of Science.

1. Monograph, chapters in books, PhD dissertation

M1. Łagodziński, J., The unconventional mechanical designs aided by the magnetic

field, PhD dissertation, Lodz University of Technology, 2009r.

M2. Z. Kozanecki, D. Kozanecka, P. Klonowicz, J. Łagodziński, M. Gizelska, E.

Tkacz, K. Miazga, A. Kaczmarek. Monograph entitled: Small Power Oil-free

Turbomachinery. Collective work, edited by prof. Z. Kozanecki. Publishing:

Institute of Fluid Flow Machinery, Polish Academy of Sciences,Gdańsk 2014 –

co-author

My contribution to this work consisted in elaboration of chapters 2.3.4-5, 2.4.2-

3, 4.1.2, 5.1.2-3, 5.3. Moreover, I took part in literature overview, in gathering

the additional materials to monograph and in final editorial work. I estimate my

contribution at approx. 20%.

2. List of other papers (not included in the scientific achievement

listed in point 4) published in international scientific journals

from the database of Journal Citation Reports (JCR)

Publications include the grading scale of the Polish Ministry of Science and

Higher Education (MSHE) appropriate in the year of publication and Impact Factor

(IF).

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A1. Łagodzinski, J., Kozanecki, Z., Tkacz, E., Miazga, K. 2014 Oil-Free Bearings

for Hermetic High-Speed Turbomachinery. Journal of Vibration Engineering &

Technologies (earlier known as Advances in Vibration Engineering). Krishtel

Emaging Solutions IF=0.290 (2013) MSHE 15 points

My contribution to this work consisted in preparation of geometry and numerical

models. I performed the simulations and obtained the results. I took part in

literature overview, elaboration, results analysis and discussion. I estimate my


A2. Łagodziński J., Kozanecka D., Kozanecki Z. (2011) Active magnetic damper in

a power transmission system, Communications in Nonlinear Science and

Numerical Simulation, Journal Elsevier, No 16 (2011), pp. 2273-2278.

www.elsevier.com/locate/ cnsns_1567. IF=2.569 (2014) MSHE 40 points


models. I performed the simulations and obtained the results. I verified the

model on the test bench. I took part in literature overview, elaboration, results

analysis and discussion. I estimate my contribution at approx. 30%.

A3. Łagodziński J., Kozanecki Z., Tkacz E., Miazga K. Theoretical and

experimental investigations of oil-free bearings and their application in

diagnostics of high-speed turbomachinery, Key Engineering Materials Vol. 588

(2014) pp 302-309 Online available since 2013/Oct/11 at www.scientific.net

(2014) Trans Tech Publications, Switzerland

doi:10.4028/www.scientific.net/KEM.588.302 IF=0.21 (2014) MSHE 8 points





A4. Kryllowicz W, Magiera R, Łagodzinski J, Sobczak, K Liskiewicz, G,

Aerodynamical and Structural Design of the Diagonal Blower and Its Numerical

and Experimental Validation Advances in Vibration Engineering Volume: 2

Issue: 5 Pp. 459-468 (2014), IF=0.1531 (2014) MSHE 8 points

15





A5. Łagodziński J., Kozanecka D., Kozanecki Z., Tkacz E., Experimental Research

Of Oil-Free Support Systems To Predict The High-Speed Rotor Bearing

Dynamics, International Journal of DYNAMICS and Control, Springer Berlin

Heidelberg (2014), DOI 10.1007/s40435-014-0074-9, Article 8 pages. Online

available since March 19, 2014. IF=0.321 (2014)


models. I performed the simulations and obtained the results. I buiIt a test

bench and verified the model on it. I took part in literature overview, elaboration,

results analysis and discussion. I estimate my contribution at approx. 25%.

A6. Kozanecki, Z., Łagodziński, J., Tkacz, E., Miazga, K., Performance of thrust

airfoil bearing for oil-free turbomachinery, Journal of Vibrational Engineering

and Technologies 6(1),8 2018 Volume: 6 Issue: 1 DOI: 10.1007/s42417-018-

0001-z IF=0.615 (2018) MSHE 8points

My contribution to this work consisted in participation in elaboration of the

concept of the publication. I defined the scientific aim and scope of the

manuscript. I took part in elaboration of methodology of the work. I co-designed

the test bench and took part in experimental research. I prepared figures and

tables for the manuscript. I took part in the literature review, elaboration and

analysis of the results, discussion of the results and conclusions. I prepared the

manuscript for publishing and I was responsible for contacts with the editors

and reviewers. I estimate my contribution at approx. 60%.

A7. Tkacz E., Kozanecki Z.; Łagodzinski J., Solenoid Actuator for a Camless

Control System of the Piston Engine Valve. Edited by: Awrejcewicz, J;

Szewczyk, R; Trojnacki, M; et al.Mechatronics: Ideas For Industrial

Applications, Book Series: Advances in Intelligent Systems and Computing

Volume: 317 Pages: 141-148 Published: 2015 IF=0.123 (2015)

My contribution to this work consisted in numerical optimization of the design.

16

I co-designed the test bench and took part in experimental research. I prepared

figures and tables for the manuscript. I took part in the literature review,

elaboration and analysis of the results, discussion of the results and

conclusions. I estimate my contribution at approx. 60%.

A8. Łagodziński,J, Z. Kozanecki, E. Tkacz, D. Kozanecka, A Self-Acting Gas

Journal Bearing with a Flexibly Supported Foil - Numerical Model of Bearing

Dynamics, International Journal Of Structural Stability And Dynamics Vol. 17

Issue: 5 DOI: 10.1142/S0219455417400120 published: June 2017 IF=1.028

(2015) MSHE 25 points

My contribution to this work consisted in numerical models verification. I took

part in the literature review, elaboration and analysis of the results, discussion

of the results and conclusions. I prepared the manuscript for publishing and I

was responsible for contacts with the editors and reviewers. I estimate my


A9. Kozanecki, Z; Kozanecka, D; Łagodzinski, J.; Tkacz, E, Numerical and

Experimental Investigations of Oil-Free Support Systems to Predict High-Speed

Rotor Bearing Dynamics, Journal Of Vibration Engineering & Technologies Vol.

3 Issue: 6 pp. 759-768 IF=0.12 (2015) MSHE 8 points

My contribution to this work consisted in numerical models verification. I co-

designed the test bench and took part in experimental research. I took part in

the literature review, elaboration and analysis of the results, discussion of the

results and conclusions. I estimate my contribution at approx. 25%.

A10. Kozanecki, Z., Łagodziński, J., Tkacz, E., Miazga, K. High-speed Hermetic

Turbogenerator With A Hybrid Bearing System, Journal Of Vibrational

Engineering And Technologies 6(1),8 2018 Volume: 6 Issue: 4 pp. 325-331

DOI: 10.1007/s42417-018-0042-3 IF=0.615 (2018) MSHE 8 points


models. I performed the simulations and obtained the results. I verified the

model on the test bench. I took part in the literature review, elaboration and

analysis of the results, discussion of the results and conclusions. I estimate my


17

3. List of other papers (not included in the scientific achievement

listed in point 4) published in the scientific journals beyond the

database of Journal Citation Reports (JCR)

B1. Łagodziński J., Kozanecki Z., Miazga K., Tkacz E., 2011, Investigations of

Coating Materials for Air-Foil Bearings, Cieplne Maszyny Przepływowe nr 140 s.

149-156, IMP PŁ, Łódź, 2011. MSHE 1 point

My contribution to this work consisted in participation in of methodology of the

work. I co-designed the test bench and took part in experimental research. I

took part in the literature review, elaboration and analysis of the results,

discussion of the results and conclusions. I prepared the manuscript for

publishing. I estimate my contribution at approx. 25%.

B2. Łagodziński J., Kozanecki Z., Kozanecka D., Tkacz E, Niekonwencjonalne

Bezolejowe Łożyska Wysokoobrotowe Turbogeneratora Dla Obiegu ORC,

Cieplne Maszyny Przepływowe nr 144, IMP PŁ, Łódź, 2013. MSHE 1 point


work. I co-designed the test bench and took part in experimental research and

numerical model verification. I took part in the literature review, elaboration and

analysis of the results, discussion of the results and conclusions. I prepared

figures and tables for the manuscript and took part in editorial work. I prepared

the manuscript for publishing. I estimate my contribution at approx. 33%.

B3. Łagodziński J. Kozanecki Z., Magnetic Thrust Bearing for the ORC High –

Speed Microturbine Solid State Phenomena Vol. 198 (2013) pp 348-353 Online

available since 2013/Mar/11 at www.scientific.net © (2013) Trans Tech

Publications, Switzerland doi:10.4028/www.scientific.net/SSP.198.348 MSHE

10 points

My contribution to this work consisted in numerical optimization of the design. I

co-designed the test bench and took part in experimental research. I took part in


results and conclusions. I prepared figures and tables for the manuscript and

took part in editorial work. I prepared the manuscript for publishing. I was

18

responsible for contacts with the editors and reviewers. I estimate my


B4. Łagodziński J., Gizelska M., Kozanecka D., Kozanecki Z., Estimation of

External Forces in the Rotating System with an Active Magnetic Suspension

Solid State Phenomena Vol. 199 (2013) pp 21-26 Online available since

2013/Mar/18 at www.scientific.net© (2013) Trans Tech Publications,

Switzerland doi:10.4028/www.scientific.net/SSP.199.21 MNSiW 10 points


work. I co-designed the test bench and took part in experimental. I took part in


results and conclusions. I prepared the manuscript for publishing. I estimate my

contribution at approx.25%.

B5. Łagodziński, J. ,Miazga, K. ,Musiał, Application of a compliant foil bearing for

the thrust force estimation in the single stage radial blower. Cieplne Maszyny

Przepływowe nr 145 s. 87-88, IMP PŁ, Łódź, (2014). MSHE 1 points




discussion of the results and conclusions. I prepared figures and tables for the

manuscript and took part in editorial work. I prepared the manuscript for

publishing. I was responsible for contacts with the editors and reviewers. I

estimate my contribution at approx. 50%.

B6. Łagodziński, J., Tkacz, E. ,Kozanecka, D. ,Kozanecki, Z., Oil free bearing

development for high-speed turbomachinery in distributed energy systems –

dynamic and environmental evaluation. Cieplne Maszyny Przepływowe nr 145

s. 87-88, IMP PŁ, Łódź, (2014). MSHE 1 points


work. I co-designed the test bench and took part in experimental research.

I verified the numerical models. I prepared figures and tables for the manuscript.

I took part in the literature review, elaboration and analysis of the results,

19

discussion of the results and conclusions. I estimate my contribution at

approx. 25%.

B7. Tkacz E., Kozanecka D., Kozanecki Z., Łagodziński J., Oil-free bearing

development for high-speed turbomachinery in distributed energy systems –

dynamic and environmental evaluation. Open Engineering. Volume 5, Issue 1

pp.343-348, ISSN (Online) 2391-5439, DOI: 10.1515/eng-2015-0044,

September 2015 MSHE 11 points



I verified the numerical models. I prepared figures and tables for the

manuscript. I took part in the literature review, elaboration and analysis of the

results, discussion of the results and conclusions. I estimate my contribution at

approx. 25%.

B8. Łagodzinski J., Miazga K., Musiał I. Application of a compliant foil bearing for

the thrust force estimation in the single stage radial blower. Open Engineering.

Volume 5, Issue 1, pp. 287-292 ISSN (Online) 2391-5439, DOI: 10.1515/eng-

2015-0032, August 2015 MSHE 11 points






publishing. I was responsible for contacts with the editors and reviewers. I

estimate my contribution at approx. 50%.

Publications prior to PhD diploma

PD1. J. Łagodziński Modelowanie pola magnetycznego metodą elementów

skończonych w układzie detekcji ruchu suwaka wzmacniacza hydraulicznego

Cieplne Maszyny Przepływowe 131/2007 ISSN 0137-2261 MSHE 1 point


I designed the test bench and performed experimental research. I was

responsible for the literature review, elaboration and analysis of the results,

20



publishing. I was responsible for contacts with the editors and reviewers. It was

my independent publication.

PD2. Łagodziński, J. Modelling of magnetic fields with the finite element method in

machine diagnostic systems (2009) Solid State Phenomena, 147-149, pp. 155-

160. DOI: 10.4028/www.scientific.net/SSP.147-149.155 MSHE 10 points


I designed the test bench and performed experimental research I was

responsible for the literature review, elaboration and analysis of the results,



publishing. I was responsible for contacts with the editors and reviewers. It was

my independent publication.

PD3. Kozanecki Z., Łagodzinski J., Kozanecka D., Failure diagnosis of the gas

compressor diaphragm vane, DIAGNOSTYKA’ 4(52)/2009 pp. 65-71 MSHE 4

points



I verified the numerical models. I took part in the literature review, elaboration

and analysis of the results, discussion of the results and conclusions. I prepared

figures and tables for the manuscript and took part in editorial work. I prepared

the manuscript for publishing. I was responsible for contacts with the editors

and reviewers. I estimate my contribution at approx. 40%.

4. List of conference reports

A detailed list of conference reports is included in Appendix 6.

21

5. Summary of publication achievements

I present a comprehensive summary of my scientific achievement as regards

publications in Table 1. A list of papers citing my publications within the Web of

Science core database is included in appendix 9.

Table 1. Scientific achievement - publications

Year

Number of publications

Co

nfe

ren

ce

co

mm

un

ica

tio

ns

MS

HE

Po

ints

Imp

ac

t F

ac

tor

Po

ints

WoS Citation Report

To

tal

Ind

ex

ed

in

JC

R

All d

ata

base

s

Wit

ho

ut

se

lf-

cit

ati

on

s

Before PhD

2006-2009

3 0 4 8 0 0 0

After PhD

2010-2019

18 10 29 179 6,044 24 18

Total 21 10 33 187 6,044 24 18

Total IF based on Journal Citation Reports (JCR): 6,044;

Number of citations in the Web of Science all databases: 24; (18 without self-

citations)

H-index on the basis of the Web of Science (WoS) database: 3;

Number of citation in the Scopus database: 40 (31 without self-citations);

H-index on the basis of the Scopus database: 5;

Total number of MSHE points: 187.

22

VI. Didactics and science popularization achievements

A) International and national research projects management and

participation

During my professional career, I took part in 12 research projects, both national

and international. These research projects were supported financially mainly by the

National Centre for Research and Development (NCR&D) or European Union Funds

within the European Social Fund in the Human Capital Operational Programme.

Before the PhD dissertation, I took part in two research projects. After PhD, I am

manager of one research project and have been a leader of three tasks within three

projects, and one research grant from Youth Scientists Fund, as stated in the detailed

list below:

PB1. Research project nr N N504 4505 33 entitled ” Diagnostic System of machine

rotor with active magnetic bearing support”, 2010r. – executor,

PB2. Industrial research project: „Soupape électromagnétique CAMLESS”, performed

under agreement between Lodz University of Technology and PSA Peugeot

Citroen company (2012). The main scope of the project was to develop

camless, electromagnetic control system of valve movement in internal

combustion engine - executor,

PB3. Key Project no. POIG.01.01.02-00-016/08 pt. „Model agroenergetic complexes

as an example of distributed cogeneration based on local and renewable

energy sources”. subtask 5.5. entitled: ”Experimental research and design work

on bearing assemblies, seals, high speed rotors and microturbine casings”.

Main contractor: Institute of Fluid Flow Machinery, PAS, Gdańsk. Years 2008-

2013. – executor,

PB4. Strategic NCR&D Project, Research task No. 4 entitled: „Development of

integrated technologies for the production of fuels and energy from biomass,

agricultural and other waste” Topic 1 – Multigenerating poweplants, subtask

entitled: ”Implementation of a high-speed hermetic turbogenerator with a power

of approximately 80 kW for the ORC cycle with MDM working medium”. Project

cofunded by NCR&D. Consortium: IFFM, PAS – Energa Company. Years 2012-

2015. – executor

23

PB5. Research project performed under agreement between Airbus Helicopters

Poland Ltd and Lodz University of Technology. Title of the project: „Flexible

couplings prototypes development and horizontal transmission tests” (2015-till

now) – executor

PB6. Key project no. POIG.01.01.02-00-016/08 entitled „Model agroenergetic

complexes as an example of distributed cogeneration based on local and

renewable energy sources.” Subtask „Design, construction, installation of a test

bench for testing the thickness of a gas film in a radial foil bearing during start-

up and operational conditions” 2013 – task leader,

PB7. Project within the Applied Research Programme I/A6/6/2012 entitled:

“Application of thermo-electric materials for thermal stability improvement of

high Speed rotor supports”, subtask entitled: „Development of manufacturing

technology and research of gas foil bearings” (2014).- task leader,

PB8. Internal Grant from Young Scientist Fund on Faculty of Mechanical Engineering,

Lodz University of Technology entitled: ”Exploitation research of radial blower

with rotor supported in foil bearings”, (2015) – grant leader,

PB9. Project no. 2016/21/D/ST8/01711 entitled: „Research and modeling of anti-

vibration processes in high speed bearings with variable geometry” funded in

2017 – 2020 from National Scientific Centre – research task entitled:

„Development of top foil manufacturing technology for bearing with variable

geometry” (2018) – task leader,

PB10. Industrial research project „Air foil bearings development and industrialization

support“. The project includes development of foil bearing shaft supports

capable to operate at 200 000 rpm, design concept, numerical analyses,

manufacturing, experimental tests and industrial implementation. Contractor:

international company from automotive/aerospace industry (confidential).

February 2019 – till now – project leader.

Research projects prior to PhD

Développement d’un palier magnétique a commande numérique pour

transmission arrière d’un hélicoptère - bilateral agreement for scientific research

signed by Institute of Turbomachinery LUT and EADS Eurocopter implemented in

2005-2007 - executor,

24

Simulations théoriques et essais expérimentaux du système «reed-switch» -

bilateral agreement for scientific research signed by Institute of Turbomachinery

LUT and EADS Eurocopter, implemented in 2007 - executor.

B) Implemented original design, construction and technological

achievements

Full list of the implemented original design, construction and technological

achievements has been attached in appendix 7.

C) Awards and distinctions

NAGR1. 2nd prize in „Youth Innovators” competition being organized by Industrial

Research Institute for Automation and Measurements in Warsaw, 2010,

NAGR2. Faculty of Mechanical Engineering - Dean’s distinction of PhD thesis –

2010,

NAGR3. Rector's Award of the Lodz University of Technology for achievements in

the field of science and teaching in the years 2009-2018, Łódź, (for 2009,

2011, 2013, 2014, 2015, 2017, 2018,): total 7.

Awards and distinctions prior to PhD

Prof. Ludwik Muller’s diploma on XXXV Polish Symposium entitled „Machinery

diagnostics”, 2008r, for the best lecture of young scientist.

D) Reviewing of manuscripts for international and national

scientific journals

REC1.Wierzcholski K.Miszczak A. Temperature and Adhesion Influence on the

Cylindrical Microbearing Operating Parameters, paper on Mechatronic

Systems And Materials (2012),

REC2.Żywica G., Kiciński J. The influence of selected design and operating

parameters on the dynamics of the steam micro-turbine, 1 peer-reviewed

manuscript in Central European Journal of Engineering (2014),

REC3.Bagiński P., Żywica G. The influence of temperature on dynamics of the rotor -

foil bearing system, 1 peer-reviewed manuscript in Transactions of the

IFFM (2016),

25

REC4.Przybylowicz P., Near-critical Behavior Of An Elastic Rotating Shaft Stabilized

By Electromagnetic Actuators, 1 peer-reviewed manuscript in International

Journal of Stability and Dynamics (2016),

REC5.Adamowicz M., Żywica G., Advanced gas turbines health monitoring systems,

1 peer-reviewed manuscript in Diagnostyka (2018),

REC6.Bagiński P., Żywica G. Determination Of The Lift-off Speed In Foil Bearings

Using Various Measurement Methods, 1 peer-reviewed manuscript in

Mechanics and Mechanical Engineering (2018),

REC7.Breńkacz Ł, Żywica G., Bogulicz M., Dynamic performance analysis of the

rotor of a 30 kW ORC microturbine considering properties of aerodynamic gas

bearings, 1 peer-reviewed manuscript in Mechanics and Mechanical

Engineering (2018),

E) Expertise or other studies made to order

I am a coauthor of nine expertises, from field of high Power turbomachinery:

EXP1. Kryłłowicz W. Łagodziński J., Beczkowski J. Numerical stress analysis of

boiler exhaust fan, 2012,

EXP2. Kozanecki Z., Kryłłowicz W., Łagodziński J. Concept desing of experimental

test stand for biomass shredding machine for boiler furnance purposes.

contractor: ŚWIĄTEK company, Bydgoszcz (2012)

EXP3. Kozanecki Z., Tkacz E. Łagodziński J. Andrzej Kaczmarek Soupape

Électromagnétique Camless, contractor: PSA Peugeot Citroen, November

2012

EXP4. Kozanecki Z., Tkacz E. Łagodziński J. Design and manufacturing of working

medium lubricated bearings for ORC turbogenerator. contractor:

Turboservice sp. z o.o. , 2015,

EXP5. Kozanecki Z., Łagodziński J., Papierski A. Failure Diagnosis Of 1st stage

impeller of The 1C01 Gas Compressor in hydrocracking installation.

Contractor: PKN Orlen Płock, July 2017

EXP6. Łagodziński J., Magiera R., Numerical Analysis of the Dynamics of the

WCMO-1050 Furnance mixer rotor. Contractor: Seco Warwick Świebodzin,

January 2018

26

EXP7. Łagodziński J., Magiera R., Numerical Analysis of the Dynamics of the

Furnance Mixer Rotor. Facility: Hindalco, India. Contractor: Seco Warwick

Świebodzin, April 2018,

Expertise or other studies made to order prior to PhD:

Kozanecki Z., Najdecki S., Łagodziński J. Technical Expertise considering the

operation of the Hermetic cnpk 200-360 pump in hydrocarbons installation in

PKN ORLEN company, 2006,

Kozanecki Z., Łagodziński J., Więckowski S. Failure Diagnosis Of The Gas

Compressor Diaphragm Vane And the Modification Suggestions, contractor:

EuroPolGaz, July 2008,

F) Supervising of PhD students as a supportive supervisor

PROM1. Eliza Tkacz, 2013-2015, PhD dissertation entitled: „The dynamics of a gas

journal bearing with flexibly supported foil”, Lodz University of Technology,

Faculty of Mechanical Engineering – supportive supervisor

G) Achievements in didactics and popularization of science

Manager of “Power Engineering Technologies and Machines II” subject (Faculty

of Mechanical Engineering, 1st stage programme, course of Power Engineering)

Took part in five trainings:

Certificate of Post-Diploma Programme for Academic Teaching Staff, 2009

Certificate of Ansys FEM practitioner by MESco company, 2011

Three trainings in field of signal processing and vibration measurement (years

2008 -2012)

TUL University internship coordinator in Veolia Lodz (2011-2016)

Member of Didactic Commission on Power Engineering studies in cadence 2016-

2020

Supervisor of 18 B. Sc. theses and 6 M. Sc. theses. Three of them have been

awarded:

1st prize for B.Sc. E. Wojtarkowska in Competition for the best thesis in the field

of Power Engineering. The competition has been organized by the Lodz

University of Technology and Dalkia company in 2014,

27

Distinction of M. Sc. Piotr Zieliński thesis in ŁRF SNT-NOT for the best M. Sc.

thesis on Lodz University of Technology in 2017,

Curran – Werner prize for M.Sc. thesis of student Sebastian Dziomdziora (2018)

VII. Summary of scientific, engineering and other accomplishments

Scientific, engineering and other accomplishments within the application for a

Doctor of Science degree are summarized in Tables 2 to 4.

Table 2. Scientific achievements within the application for a Doctor of Science

degree - summary

No. Scientific achievements

Number

Before PhD

After PhD

Total

1. Manuscripts published in international scientific journals from the database of Journal Citation

Reports (JCR) 0 10 10

2. Manuscripts published in international scientific

journals not registered in the database of Journal Citation Reports (JCR)

3 8 11

4. Author/co-author of papers published in monographs in Polish

0 2 2

6. Active participation in international and national scientific conferences

4 29 33

7. Oral presentations at international and national thematic conferences

4 17 21

8. Reviews of manuscripts for international and national journals

0 7 7

Total number of scientific achievements 11 72 84

28

Table 3. Implementation achievements

No. Implementation achievements

Number

Before PhD After PhD Total

9. Implemented original design, construction and technological

achievements 2 10 12

10. Team reports, catalogues, documentation of research work and

expertise 6 29 35

11. Project management of the investigations conducted in

cooperation with researchers from other Polish or foreign academic

centres or industrial partners

0 1 1

12. Task management within research

projects 0 3 3

Total number of implementation achievements

8 43 51

Table 4. Other achievements

No. Other achievements

Number

Before PhD

After PhD

Total

13. Supervising of PhD thesis as the supportive supervisor

- 1 1

14. Expertise or other studies made to order 2 7 9

15. International and national research projects management and participation

2 9 11

16. Received awards and distinctions 2 8 10

17. Awards and distinctions of supervised

students 0 3 3

Documents

Appendix 3 (English version) · Appendix 3 (English version) AUTOPRESENTATION Jakub Łagodziński, PhD Institute of Turbomachinery Division of Diagnostics And Automatics of Turbomachinery