TRANSIENT PERFORMANCE SIMULATION OF A LARGE LIQUID ROCKET ENGINE UNDER FAULT CONDITIONS

Wu Jianjun; Zhang Yulin; Chen Qizhi

Volume 9 Issue 4

Oct. 1994

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Article Navigation > Journal of Aerospace Power > 1994 > 9(4): 361-365,441

Wu Jianjun, Zhang Yulin, Chen Qizhi. TRANSIENT PERFORMANCE SIMULATION OF A LARGE LIQUID ROCKET ENGINE UNDER FAULT CONDITIONS[J]. Journal of Aerospace Power, 1994, 9(4): 361-365,441.

Citation:

Wu Jianjun, Zhang Yulin, Chen Qizhi. TRANSIENT PERFORMANCE SIMULATION OF A LARGE LIQUID ROCKET ENGINE UNDER FAULT CONDITIONS[J]. Journal of Aerospace Power, 1994, 9(4): 361-365,441.

Wu Jianjun, Zhang Yulin, Chen Qizhi. TRANSIENT PERFORMANCE SIMULATION OF A LARGE LIQUID ROCKET ENGINE UNDER FAULT CONDITIONS[J]. Journal of Aerospace Power, 1994, 9(4): 361-365,441.

Citation:

Wu Jianjun, Zhang Yulin, Chen Qizhi. TRANSIENT PERFORMANCE SIMULATION OF A LARGE LIQUID ROCKET ENGINE UNDER FAULT CONDITIONS[J]. Journal of Aerospace Power, 1994, 9(4): 361-365,441.

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TRANSIENT PERFORMANCE SIMULATION OF A LARGE LIQUID ROCKET ENGINE UNDER FAULT CONDITIONS

1st Dept.,National University of Defence Technology,Changshe 410078

Publish Date: 1994-10-28

Abstract

Abstract

A non linear dynamic mathematical model for a large liquid rocket engine has been established,which comprises normal models and fault models based on large liquid rocket engine with turbo pump system.The transient performance simulation has been performed under fault conditions according to jump input of various fault modes such as main valve fault,pipeline leakage,pipeline blockage,pump efficiency losses,turbine efficiency losses,which have occurred in previous hot fire tests or will be possible to occur in future.Adaptive Runge-Kutta method is employed to simulate.The calculated results show that the established model is accurate and reasonable.The numerical method can simulate effectively the transient performance of the faults.Simulation results are also discussed and analysed in detail.The work lays the foundation for further study on choice of fault modes,fault detection and diagnosis based on the model.