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, 4, 3 - 13

ASSESSMENT OF EFFECTS OF STRUCTURAL RIGIDITY OF LIQUID ROCKET-ENGINE CHAMBER ON CHARACTERISTICS OF THRUST-VECTOR CONTROL

N. D. Kovalenko, YE. L. Tokareva

N. D. Kovalenko
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Ukraine

YE. L. Tokareva
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Ukraine

      The effects of structural rigidity of the liquid rocket engine chamber with a high-expansion nozzle on the characteristics of the thrust-vector control are assessed. A simplified mathematical model is developed. For the model developed the effects of the amplitude-frequency characteristics of the swinging combustion chamber of an engine are estimated under forced harmonic vibrations. It is shown that the chamber of combustion under consideration can appear as a reasonably rigid chamber without inducing a significant interference for thrust vector control at swinging frequency of 10 Hz or less. However, there is a possibility of a significant effect of rigidity of the swinging drive and that of the outlet of an uncooled section mouth for the engine nozzle on the above process.

liquid rocket engine, combustion chamber, swinging, thrust-vector control, structural rigidity.

1. Igdalov I. M., Kuchma L. D., Polyakov N. V., Sheptun Yu. D. Rocket as an Object of Control: edited by Konyukhov S. N. Dniepropetrovsk: Art-Press, 2004. 544 p. (in Russian)

2. Kovalenko N. D. Strelnikov G. A., Kovalenko G. N., Kovalenko T. A., Tokareva Ye. L., Ignatiev A. D., Sirotkina N. P. Gas dynamic systems of thrust-vector control of liquid rocket engines as servo elements of control system for upper stages of rockets. Tekhnicheskaya Mekhanika. 2013. No 4. P. 70 - 83. (in Russian)

3. Kovalenko N. D. Rocket Engine as Servo Element of Rocket Flight Control System. Dniepropetrovsk: ITM, NASU&NSAU, 2003. 412 p. (in Russian)

4. Sixty-Year Experience in Rocket Manufacturing and Cosmonautics: edited by Degtyarev A. V. Dniepropetrovsk: Art-press, 2014. 540 p. (in Russian)

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

6. Kovalenko N. D., Strelnikov G. A., Sheptun Yu. D., Kovalenko G. N., Ignatiev A. D. Special features of development work of thrust-vector control system for altitude liquid rocket engines. Vestnik DNU. Raketno-Kosmicheskaya Tekhnika. 2008. No 14/1. P. 49 – 63. (in Russian)

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

8. Kovalenko T. A., Kovalenko G. N., Sirotkina N. P. Thrust-vector control for liquid rocket engine of launch vehicle space stage at mass asymmetry. Tekhnicheskaya Mekhanika. 2016. No 1. P. 21 – 32. (in Russian)

9. Alfutov N. A. Basics of Calculations of Elastic Systems Stability. M.: Mashinostroenie, 1978. 305 p. (in Russian)

10. Birger I. A., Mavlyutov R. R. Strength of Materials. M.: Nauka, 1986. 560 p. (in Russian)

11. Pars L. A. Analytical Dynamics. M.: Nauka, 1971. 636 p. (in Russian)

12. Himmelblau D. Applied Nonlinear Programming. M.: Mir, 1975. 536 p. (in Russian)

13. Fesik S. P. Handbook of Strength of Materials. Kiev: Budivelnyk, 1982. 281 p. (in Russian)

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