姿控动力系统动态特性仿真及试验

doi:10.7527/S1000-6893.2025.32329

Abstract

Abstract:

This study develops a dynamic characteristic simulation model of the Attitude Control Propulsion System （ACPS） based on AMESim software， aiming to investigate the hydraulic pressure characteristics of the ACPS and the effects of water hammer pressure pulsations on engine performance parameters. The ground test sequence of the propulsion system is implemented in the simulation model， and the comparative analysis between simulation results and experimental test data demonstrates that this model exhibits satisfactory predictive accuracy. The research findings reveal that water hammer pressure waves generated during ignition/shutdown processes of bipropellant liquid rocket engine， particularly during high-thrust engine shutdown， can significantly disrupt the normal operation of other subsystems within short durations. Notably， the oxidizer pipelines exhibit significantly higher water hammer pressure peaks compared to the fuel pipelines. The potential hazards induced by water hammer effects can be effectively mitigated by implementing measures such as shortening the length of the propellant feed line and increasing the pipeline diameter.

Key words: attitude control propulsion system, AMESim, dynamic characteristic, water hammer, engine

CLC Number:

V434.1

Fang ZHANG, Weibin XIANG, Kai XIAO, Siqi XIAO, Liang XIANG, Bing WANG. Simulation and experiment of attitude control propulsion system’s dynamic characteristics[J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(S1): 732329.

Figures/Tables 11

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References 23

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参数	数值
减压阀出口压力/MPa	3.4
贮箱压差/MPa	0.1
2 500 N发动机室压/MPa	2.0
1 500 N发动机室压/MPa	2.0
贮箱液腔容积/L	52

Simulation and experiment of attitude control propulsion system’s dynamic characteristics

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