TECHNICAL MECHANICS
ISSN (Print): 1561-9184, ISSN (Online): 2616-6380

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UDC 629.78.533.6.013:621.45

Technical mechanics, 2016, 1, 51 - 59

THRUST-VECTOR CONTROL FOR LIQUID ROCKET ENGINE OF SPACE STAGE OF LAUNCH VEHICLE IN CASE OF MASS ASYMMETRY

T. A Kovalenko, G. N. Kovalenko, N. P. Sirotkina

      The results of the development and studies of the thrust-vector control system for a liquid rocket engine to control a space stage of the launch vehicle of the Cyclone-4M-type in case of mass asymmetry are reported. The paper discusses new structural and general-arrangement diagrams of bifunctional systems of the thrust-vector control, based on combined use of the mechanic (swinging the gimballed engine ) and gas dynamic (asymmetrical injection into the supersonic section of nozzle of the pressurization gas used by the turbine) thrust-vector control systems. Physical fundamentals for creating controlled efforts, special features of algorithms of the thrust-vector control and the stage motion control are examined. It is shown that applications of bifunctional systems of the thrust-vector control allow for significant extending the range of the thrust-vector control on retention of a high dynamic quality of the stage flight control and its power-mass and overall dimensional characteristics.

flight control, liquid rocket engine, engine chamber swinging, asymmetrical injection, bifunctional system of thrust-vector control, control range, stability region

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5. Kovalenko T. A. Bifunctional system of thrust-vector control for space stage of launch vehicle (in Russian) / T. A. Kovalenko, N. D. Kovalenko, N. P. Sirotkina // Tekhnicheskaya Mekhanika. – 2015. – No 1. – P. 42 – 54.

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7. Patent for Invention 103528 Ukraine, Int. Cl. FO2K 9/00.Technique for Thrust-vector Control of Liquid Rocket Engine and Liquid Rocket Engine for this Purpose (in Ukrainian) / Kovalenko M. D., Sheptun Yu. D., Strelnikov H. O., Kovalenko T. O., Syrotkina N. P. ; applicant and patentee ITM, NASU&NSAU. – a 201114384 ; filed 05.12. 2011: published 25.10.2013, Bulletin No 20. – 11 p.

8. Patent for Invention 105214 Ukraine, Int. Cl. FO2K 9/56.Technique for Thrust-vector Control of Liquid Rocket Engine and Liquid Rocket Engine for this Purpose (in Ukrainian) / Kovalenko M. D., Sheptun Yu. D., Strelnikov H. O., Kovalenko T. O., Syrotkina N. P. ; applicant and patentee ITM, NASU&NSAU. – a 201114384 ; filed 24.10.2011: published 25.04.2014, Bulletin No 8. – 10 p.

9. Patent for Invention 107270 Ukraine, Int. Cl. FO2K 9/00.Technique for Thrust-vector Control of Liquid Rocket Engine Equipped with Turbopump Assembly for Supplying Propellant Components in Combustion Chamber and Liquid Rocket Engine for this Purpose (in Ukrainian) / Kovalenko M. D., Sheptun Yu. D., Strelnikov H. O., Kovalenko T. O., Syrotkina N. P. ; applicant and patentee ITM, NASU&NSAU. – a 2013 06211 ; filed 20.05.2013 : published 10.12.2014, Bulletin No 23. – 11 p.

10. Patent for Invention 108677 Ukraine, Int. Cl. FO2K 9/00.Technique for Thrust-vector Control of Liquid Rocket Engine and Liquid Rocket Engine for this Purpose (in Ukrainian) / Kovalenko M. D., Sheptun Yu. D., Strelnikov H. O., Kovalenko T. O., Syrotkina N. P. ; applicant and patentee ITM, NASU&NSAU. – a 2013 08511 ; filed 08.07.2013 : published 25.05.2015, Bulletin No 10. – 9 p.

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12. Comparison of controllers of space stage of launch vehicle (in Russian) / T. A. Kovalenko, N. D. Kovalenko, Yu. D. Sheptun // Vestnik DNU. Raketno-Kosmicheskaya Tekhnika. – 2011. – Vol. 1, No 14. – P. 64 – 71.

Copyright (©) 2016 T. A Kovalenko, G. N. Kovalenko, N. P. Sirotkina

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