A Circuit-Based Dynamic Characteristic Analysis on the Propelling Flow System in Liquid Rockets

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Abstract:

To penetrate into the study of POGO vibration, by taking the LRC equivalent circuit analyzing method, based on two boundary conditions in document [, taking the flow pulse drive into consideration, this paper proposes four boundary conditions specific to the propelling flow system in liquid rockets, and at the same time, complements the mathematic model. Further, by way of network function, under the liquid system flow parameter, this paper infers transfer function expressions, and makes the accurate solution of the natural frequency under every boundary condition. At last, from the statistic point of view, by the method of correlation coefficient, this paper studies the influence that the flow parameter may have on the system natural frequency, and set the major influential liquid flow parameter to the system natural frequency of liquid propelling flow system in liquid rockets.

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Periodical:

Advanced Materials Research (Volumes 765-767)

Pages:

227-233

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Online since:

September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] HUNG Huaide, etc. The Vibration Engineering(Second)[M]. Bei Jing: China Astronautics Publishing Hourse, (1995).

Google Scholar

[2] Fenwick. POGO[R]. Rocketdyne's engineering journal of power technology, Spring, 1992. WANG Qizheng. Configuration Coupling Dynamics[M]. Bei Jing: China Astronautics Publishing Hourse, (1999).

Google Scholar

[3] B.W. Oppenheim, S. Rubin. Advanced pogo stability analysis for liquid rockets[J]. Journal of Spacecraft and Rockets, 1992, 30(3).

DOI: 10.2514/3.25524

Google Scholar

[4] S. Rubin. Prevention of coupled structure-propulsion instability(POGO)[J]. NASA Space Vehicle Design Criteria(Structures), SP-8055, (1970).

Google Scholar

[5] S. Rubin. Longitudinal instability of liquid rockets due to propulsion feedback(POGO)[J]. Journal of Spacecraft,V. 3(5): 1188-1195.

DOI: 10.2514/3.28626

Google Scholar

[6] YANG Ming. The Calculation of the intrinsic frequency of the liquid rocket propulsion system[J]. Structure & Environment Engineering, 2009, 36(5): 1-6.

Google Scholar

[7] SUN Bing, WEI Xin, CHI Yuan-cheng, etc. Study on general calculation of natural frequency for liquid engine flow system in launch vehicle[J]. Missile And Space Vehcile, 2009(1): 38-40.

Google Scholar