Astrium Space Transportation TMI Dr. Stephan Walther Experiences with performed and expectations on future ISTC projects ISTC / STCU Conference Ljubljana,

Astrium Space Transportation

TMI Dr. Stephan Walther

Experiences with performed and expectations on future ISTC projects

ISTC / STCU ConferenceLjubljana, Slovenia March 10-12, 2008

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Contents

• Overview to ISTC / STCU projects:• Performed: Inflatable Reentry and Descent Technology• Performed: Reusable Multi-layer Thermal Protection Systems• Current: In-orbit Demonstration of a Gossamer Structure• Current: EXPERT • Ongoing: Robotics for Security

• Experiences / Lessons learnt• “Environmental” changes• Expectations on the future ISTC / STCU projects

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IRDT Technology and History• Lightweight inflatable system combining

heatshield, parachute & landing systemdeveloped by LA/ Babakin Space Center for Mars 96 mission

• Adaptable for reentry and landing on Earth

• 1st IRDT test flight in Feb. 2000 confirmed basic technology feasibility

• 2nd test flight with enhanced system design under orbital entry conditions launched July 2002: no activation

• IRDT-2 reflight performed on 07.10.2005; non-nominal landing site, reception of TM data for trajectory reconstruction

3800

Height : 2037

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Application Opportunities based on IRDT

RoskosmosLavochkin

Mars

ESAEuropean

Development

IRT-System Study (1)ESA 2002-2004

IRT-Technology Study (2) ESA 2003-2004

ESA Mars Mission Preparation Studies

CooperationLavochkin/EADS Astrium

IRDT-1: ESA, ISTC 2000IRDT-2: ESA, ISTC 2002IRDT-2R: ESA, ISTC 2005

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IRDT-2R - A Reflight

Reflight of IRDT-2 with the goal to validate the performance and functionality

of the Russian Inflatable Technology:

• IRDT-2R total Mass at landing 140 kg

• Reduced Sensor Package, data on-board storage for data retrieval

• Design Re-entry conditions at 100 km altitude for the Demonstrator (7000 m/sec; -6° entry angle)

• Design Reentry Environment: Dynamic Pressure >5000 Pa; Peak Heatflux at the surface of the inflatable envelope > 400 kW/m2; total heat input > 13 MJ/m2

• Transfer of data to ground before landing, that are necessary for reconstruction of trajectory

• Stored measurement data shall be recoverable after landing

• Operational lifetime of Recovery Equipment of the Demonstrator shall include recovery activities up to 48 hours

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IRDT-2R Major Changes to Precursor Flights

• Responsibility of Launcher Payload Compartment (PC) design and D-2R Launcher Interface moved to Makeev

• Complete new design of the D-2R to Volna launcher mounting I/F• Launcher Separation Mechanism Redesign• Protective Cover Compartment redesign

• New design of Avionics compartment

• Implementation of Telemetry (TM) Function to receive data on ground before landing for the reconstruction of the trajectory

• TM: new antenna design inside a rigid TPS nose cone

• Autonomous Radio Telemetry System (ARTS): Data Memory and dump required

• Avionic SW: Updates for the System SW required

• GS additional equipment for quicklook flight data processing to support search activities

• New beacon antenna designs to support the search operations

• Implementation of Glonass / GPS System

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IRDT-2R Programmatics

Major Project Milestones• RR/PDR 1.-4. April 2003 • CDR / Expert Working Groups 24.-31.03.2004• QFAR 10.-13.05.2005• Final Inspection and FRR 08.-12.09.2005 (Murmansk)• Initial LRR 24.09.2005 (Murmansk / Kluchi, Kamtchatka)• Launch date 07.10.2005

Industrial Consortium:• EADS-Astrium ST prime• Lavochkin Sub • Makeev Sub/sub

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IRDT Configuration (stowed)

Equipment Container

Science Package

IBU Envelope (stowed)

IBU Filling System

Housekeeping Equipment

Equipment ContainerShock-absorber(non-cocked)

Aerodynamic Shield

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IRDT-2R Configuration (deployed)

IBU Additional Part

Equipment ContainerShock-absorber (cocked)

Aerodynamic Shield

IBU Main Part Thermal Protection Blanket

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IRDT-2R Mission Profile

1 – Take off of «Volna» LV, Barentz Sea

9 – Spin-up of D-2R

2 – Separation of 1-st stage

10 – Arming of the EC, platform separation

3 – Ignition of PS of 2-nd stage

11 – Beginning of inflation of D-2R MIBD

4 – Separation of 2-nd stage

12 – Re-entry, (100 km)

5 – Ignition of PS of 3-rd stage

13 – Aerobraking

6 – Venting of pressure from the PC

14 – Deployment of D-2R AIBD (13 km)

7 – Separation of PC cover

15 – Landing of the D-2R, Kamtchatka

8 – Separation of D-2R

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IRDT-2R - Conclusion

Due to the major design modifications and related extensive additional

qualification work and a launcher failure of the Volna launcher the launch date had

to be shifted to end of 2005

Major achievements:

• Successful launch with Volna

• Correct separation from Volna -> newly designed launcher I/F worked

properly

• Reception of TM data before and after black out phase

• From TM data a proper inflation of the MIBD can be expected

• From the trajectory reconstruction it can be expected that the maximum heat

flux was reached, but on the way to the point of maximum deceleration a non-

nominal behavior of the inflatable occured

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Project: Gossamer StructuresIN-ORBIT DEMONSTRATION EXPERIMENT WITH INFLATABLE AND RIGIDIZABLE STRUCTURES

• Cooperation between EADS Astrium ST and Lavochkin Association• Project #2835 => technology development; funded by Astrium-ST• Project #2836 => flight test ; funded by ISTC• Timeframe: 2004-2008

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Project #2835 => technology development • Funded by Astrium-ST => completed in July 2006• Deployment & rigidization tests performed in

Lavockin vacuum chamber

( Deployment control system to be improved )

Name of Parameters Technical Requirements Actual argument

Eigenfrequency of the structure The first mode of the IRIS shall be at a frequency higher than 0.5 Hz 0,625 Hz

Maximal deviation from the theoretical panel plane

The sag of any point of the deployed IRIS shall be lower than 150mm relatively to the theoretical plane

27mm

Presence of folds No slack area in the membrane No folds

Tests of panel in the VC-48

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Flight test

mission profile

LAVOCHKIN ASSOCIATION

Project #2836 => flight test

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Flight testing of generic demonstrator

(deployment & rigidization in space)• Flight funded by ISTC• 2 generic demonstrators (compatible with ULS “IOE” specifications – ESA funded TRP project )

funded by ISTC using the solvant evaporation rigidization technique => designed & manufactured by Lavochkin

LAVOCHKIN ASSOCIATION

Project #2836 => flight test

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Project #2836 flight test preparation final selection of flight test configuration passenger on Soyuz Fregat launch in 2008

TASK 1Designing of the flight

Demonstrator

2004 2005 2006

PDR

CDR

CDR2

2007 2008

TASK 2Demonstrator models ground tests

TASK 3Manufacturing &testing of flight

models

TASK 4In launcher accommodation &

insertion into the orbit

TASK 5In-orbit

experiments(measurements,ground control

& support)

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Project: Reusable Multi-layer Thermal Protection Systems

• Cooperation between EADS Astrium ST/NGL, ESA and Yuzhnoye• Project #3567 (STCU)• Objective:Yuzhnoye SDO develops a metal multi-layer thermal protection

system (TPS) for reusable spacecraft to protect the spacecraft surfaces when heated to not more than 1100ºC

• Timeframe: 2005-2006• Resumee:

• Good results by analysis and investigations by Yuzhnoye; • further activities should become part of the joint activities towards future

reusable launcher systems

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Project: Robotics for Security

• ISTC Project # 3711• Russian State Scientific Center for Robotics and Technical Cybernetics, St.Petersburg• Collaborators:

• EADS Astrium ST• LAAS, France• Joint Research Centre; Italy• Sapienza. S.L.,Spain

• Objective:• There is a significant demand to improve the available security equipment by high levels

of autonomy, robustness and dependability, adaptability, modularity, application of microsystems, and user friendliness

• Proceeding:Proceeding: The environment and security range of concerns will be discussed with the relevant institutions and in close contact/cooperation with the user the selection of needed equipment with the respectively requirements have to be defined commonly to agree on the specifications for the developments

• Schedule: 2008-2011• Status:

• First progress meeting took place in Germany in Nov 2007• Promising activities

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• Lessons learnt /experience :• Interesting technical achievements concerning materials & technologies

developments • Test means available at Lavochkin Association allow to perform the whole

range of tests in view of a flight test preparation• Positive support from Roscosmos in view of the flight test preparation

• Recommendations • Need for regular progress meetings ( quarterly ) to check work progress and

update the work plan when needed, depending on results achieved• The experience achieved for the ISTC funded flight test preparation is a good

background in view of the flight testing of technologies developed by Astrium-ST (both under internal fundings and on ESA fundings – TRP Program )

• A common meeting ESA / Roscosmos / Astrium-ST / Lavochkin after ISTC flight completion would be a good opportunity to prepare further cooperation

Lessons learnt & recommendation (1 / Gossamer)

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Lessons learnt & recommendations (2 /IRDT)

• Close monitoring of activities necessary, involves also higher resources for this purpose

• Direct access to sub-cos important, key players should be directly contracted (e.g. Makeev as launcher provider and operations responsible in case of IRDT-2R)

• Reviews/Meetings take longer, expectations have to be clearly communicated in advance and the common understanding has to be ensured

• It has to be acknowledged that the Russian standard approach for projects differs from the ESA environment (reviews not necessarily known to Russian industry as usually hold within ESA projects)

• The will to learn from each other and the standard practices has to be there on both sides, adaptation towards compromises to fit within both environments ESA/ Russian industry have to be taken. This can also be a very fruitful experience.

• Emphasis has to be put on testing, as analysis documentation is not that easy achievable and in Russian industry not necessarily the standard way forward as used to in an ESA environment

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Lessons learnt & recommendations (3 / IRDT / general)

• A lot of know how in research and development in technologies like materials and processes is available in Russia from the past

• The development approach differs from western approach drastically; Russia prefers more test activities than analyses

• It has to be clearly agreed on contractually which information, data and results will be accessible for the western European partners

• Uncertainties in handling of IPR Intellectual Property Rights on both sides with the tendency of more restricted

• Some Russian space industries were and are not interested in ISTC projects

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What has changed in the meantime?

• Political and economical self-confidence strongly increasing in Russia

• Political situation/trend not predictable

• Russian GDP Gross Domestic Product is growing at 6-7 % per year• The Federal Space Budget has been increased and has been doubled in the

last three years (FSA budget in 2007 is about 800 mEUR / ESA 3 bnEUR / NASA 14 bn$)

• Half of the money to the Russian space industry by space commercial activities

• Russia actively explores new markets in China, India, South Korea and Brazil

• Restructuring of the Russian industry in various clusters of companies is at various stages; privatization is envisaged to be finished in 2010

• Ground infrastructure / facilities has to be improved significantly

• Demand for young engineers in the Russian space industry

• Harmonization of international management style and project performance

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Expectations on future ISTC/STCU projects

• Adaptation of the ISTC/STCU rules to current environment/trends• Implementation of single ISTC/STCU projects into long term programs

and perspectives in the relevant agencies planning• From European financing/investment into industrial/institutional

partnership; ROI; to establish “win-win situations”• Future joint projects by clear commitments of all parties/partners

Documents

Astrium Space Transportation TMI Dr. Stephan Walther Experiences with performed and expectations on future ISTC projects ISTC / STCU Conference Ljubljana,