IVth Traditional All-Russian youth summer school "Control, Information and

Optimization "1

IVth Traditional All-Russian youth summer school"Control, Information and Optimization ",

June 17-24, 2012Institute of Control Sciences V. A. Trapeznikov of the Russian Academy of Sciences (RAS)

Moscow - Zvenigorod, Russia

RELIABILITY PREDICTION MODEL FOR THERMAL MODE SYSTEM OF SPACECRAFT AT THE STAGE OF INTEGRATED ELECTRICAL

TESTINGV.V.Belova

S.P. KOROLEV ROCKET AND SPACE CORPORATION «ENERGIA»Contacts Address: 4A Lenin Street, Korolev, Moscow area 141070 Russia

E-mail: post@rsce.ru

IVth Traditional All-Russian youth summer school "Control, Information and Optimization "

A Project Of The International Space StationThe Russian segment of the ISS

IVth Traditional All-Russian youth summer school "Control, Information and Optimization "3

Transport Cargo Vehicles Progress M-01M Launch time November 26, 2008.

Docking compartment PirsLaunch time September 15, 2001

Serial products

oyuz TMA-01M manned transport spacecraft.

Launch time September 8, 2010

Many-functional Laboratory Module Nauka (MLM)Launch time 2013.

Unique productsINTEGRATED ELECTRICAL TESTING. The systems of single-use

IVth Traditional All-Russian youth summer school "Control, Information and Optimization "4

INTEGRATED ELECTRICAL TESTING.The systems of single-use

ISS Russian Segment. MRM1 Rassvet in flight configuration.

Launch time May 14, 2010

ISS Russian Segment. Mini Research Module Poisk (MRM2). Launch

time November 10, 2009

ISS Russian SegmentService Module Zvezda. Launch time July 12, 2000

Unique products

Manned Transport Vehicle of new generation

Advanced Manned TransportationSystem

«Parom» - space tug between the orbits for multiple use, to replace

the Transport Cargo Vehicles «Progress».

Testing an unmanned version at 2015,

the manned version at 2018.

INTEGRATED ELECTRICAL TESTING. The reusable systems

n Mission

Martian Mission

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 5

About the item under test• products of rocket and space technology: experimental, serial or unique, single-use or reusable• the life cycle of the product contains design, development, production, testing, disposal• ground and flight testing are final stages of complex experimental testing of the spacecraft• ground tests are divided into autonomous, integrated and joint (with other spacecrafts).They are held with real products and on the bench stands• integrated electrical tests represent a plan of electrical system checks with other systems of products • the purpose of testing is checking electrical connections circuit of all systems to simulate normal and abnormal operation• assessment of Up state/ Down system state according to the results of the tests carried out using computer-aided test systems and on-board telemetry information system.

Another worldM. C. Escher, 1947

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 6

And also... the specificity of the tests :

• are not reliability tests• are compliance and not definitional• operation system is (on/off)

• total interval test less than the worker. Set limits on the useful life• are failure-free operation (no statistics on failure or a very small statistics), from which follows the non-applicability of statistical methods of evaluation• monitoring of computer-aided test systems and on-board telemetry information system have different controllability (instrumental and methodical)

Cubic Space Division, M. C. Escher , 1952

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 7

Impossible 1Vicente Meavilla Segui

Main task is assessment of the reliability for the thermal mode system into the unique spacecraft on the results of the integrated electrical tests with the account controllability of the monitoring system.

.

The goal is to develop an engineering test procedure for automated reliability estimation of the thermal mode system. Visualize the data.

Problem • During integrated electrical tests reliability

has never been evaluated, because GOST no requirements on intermediate measures of reliability (their choice is a separate task!), and there are only recommendations• The scientific basis - the theory of testing, which itself is in development.

.

ENGINEERING EXPERIMENT

I. Computer-aided testing system to test spacecrafts (AIS)

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 8

II. Computer-aided complex for telemetric information processing

III. Engineering techniques for the reliability control of spacecrafts during integrated electrical tests

Results of testing. AIS Test Protocol for the thermal mode system of MRM2

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 9

"0""10"

"15""88"

"89""102"

"113""120"

"123

P1JENM2P2JENM2

P3JENM2PENA1M2

PENA1M2KUENAM2

RENAM2KUJENM2

ZVNM2

0

0,5

1

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 10

Results of testing .The Diagram of the control changes the telemetry signal parametersfor the algorithm test “Bringing in the original System of management of the MRM2”

Functional scheme for thermal mode system of the Soyuz TMA-01M manned transport spacecraft

Reliability Block diagram for thermal mode system of the Mini Research Module Poisk (MRM2)

Test plan for thermal mode system of the Mini Research Module Poisk (MRM2)

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 12

Theory. 3 approachScientific basis – theory test. 3 approach to the assessment of the reliability of the tests results:1) statistical; in publications of the authors Y.K.Belyayev, L.N. Bolshev, I.V. Pavlov2) physical-statistical; in publications of the author G.D.

Kartashev3) algebraic; in publications of the author V.V. Nalimov.

3 Technology3 technology of the automated simulation and calculation of Probability Measure at the design stage, implemented in softwarecomplexes (SC):• technology fault tree and event tree (SC Risk Spectrum Swedishcompany Relcom AB) used Federal state unitary enterprise «SPbAEP»;• technology of ASS(automated structural logic simulation) (SC ASS SZMA, etc.) applied at OAO «SPIK SZMA»;• technology of the of computer-aided simulation of probability measure (SC Relex Softwar , USA) , used in ZAO Sukhoi Civil Aircraft Company (SCAC).

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 13

System Model• Reliability Model is implemented in computer modeling of reliability of Relex company PTC • Model Evaluation according to the computer-aided complex for telemetric information processing, OAO RSC Energia• Model of Functioning is implemented in the special software testing into software computer-aided test systems Keldysh Institute of Applied Mathematics, RAS.

ethods, respectively models• Logical-probabilistic methods, using as a means to build graphical models of reliability of the fault tree and event tree. Use of logic-dynamic operators, taking into account the dependence of the events, the timing of the priorities.

14IVth Traditional All-Russian youth summer school "Control, Information and Optimization "

Fault treeto model the reliability in

Relex

15IVth Traditional All-Russian youth summer school "Control, Information and Optimization "

4 - Priority AND.Dynamic operator

16IVth Traditional All-Russian youth summer school "Control, Information and Optimization "Results of calculation in Relex

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 17

Primary hypothesisOnly one thing remains: modeling ...

•Link reliability model of the thermal mode system + monitoring system at the design stage and function model of thermal mode system at the stage of integrated electrical tests. •Define functional and information communication between models. On the basis of these relations to build the modeling program failures for thermal mode system. •The program of the failure to carry out in the real spacecraft at the stage of integrated electrical tests.They approve, that the experiment

will confirm the given reliability measure (probability must be determined).

Sandro del Prete Wheels

IV. Control of the technical state of the systemReliability of control

• The control object parameters or functions of them• The control of the current state of the system

• computer-aided test systems (AIS) • on-board telemetry information system (BITS) The indicator of the reliability of control systems is defined as

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 18

the methodical reliability of control

the instrumental reliability of control

ENGINEERING EXPERIMENT

19The display Format for thermal mode system of the Soyuz TMA-03M manned transport spacecraft

20The display Format for thermal mode system of the Progress M-01M transport cargo vehicles

21)The display Format for thermal mode system of the Soyuz TMA-03M manned transport spacecraft

22The display Format for thermal mode system of the Soyuz TMA-03M manned transport spacecraft

Rezults• model of reliability (system + control system), taking into account the

reliability of the control system, implemented in Relex

Completed work• Designed formats of data visualization, by which to evaluate the system

fault tree

Conclusions

• To Verification of the fault tree to carry out in the real KA.• To onsider the application of other methods in the other Relex modules.

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 23

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 24

References

1. Belova V.V. Evaluation of system reliability measure at the ground tests stage // K.E.Tsiolkovsky and modernity: materials of the XLV scientific readings of memory of K.E.Tsiolkovsky. — Kaluga: IP Koshelev A.B. (Publishing House "Eidos"), 2010.

2. Belova V.V. The reliability control of the thermal mode support equipment system in research module of International Space Station on complex electrical test stage // Bulletin of the RAS. Energy. — 2011. — No.3.

3. Belova V.V. On-line control of thermal control system telemetry parameters of transport cargo vehicles and manned transport vehicles during integrated electrical tests // Space journal of “Lavochkin Association”. — 2012. — No.1(12).

4. GOST 27.002-89. Reliability in the equipment. Basic concepts. Terms and definitions. — M.: Publishing house of the standards, 1990.

5. Relex 2011. Reference Manual /Relex Software Corporation 41West Otterman Street,Greensburg, Pensilvania 15601 USA.

6. Reliability and efficiency for engineering: Handbook: In 10 vol. / V.S.Avduevsky [etc.].-M.: Mashinostroenie,1989. — Vol.6: Experimental verification and testing / R.S.Sudakov, O.I.Teskin.

7. Data Engine API Guide. Relex 2011 / Copyright Parametric Technology Corporation 2011, 140 Kendrick Street, Needham, MA 02494 USA.

8. Viktorova V.S., Stepanyants A.S. Reliability analysis of complex structure systems on multilevel models // Automation and Remote Control. — 2010. — No.7.

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 25

Asknowledgements

Institute of Control Sciences V. A. Trapeznikov of the Russian Academy of Sciences (RAS) (the invitation and the financial support)S.P. Korolev Rocket and Space Corporation «Energia»:post-graduate studies department, design department

IVth Traditional All-Russian youth summer school "Control, Information and Optimization " 26

thanks for attention!

Istvan Orosz