关键词: 液体推进剂火箭发动机;发动机故障;故障分析;失效模式;实时仿真

Abstract: Failure mode analysis is the basis of the health monitoring technique of liquidpropellant rocket engines. Because there are very limited test data available, mathematical medel mustbe developed for the simulation of the failure response of liquid propellant rocket engines. Precise andreal-time failure simulation models of a large scale pump feed liquid propelIant rocket engines aredevel0ped. Both statistical metheds on the basis 0f test data and simulation analytical metheds areused for the study of the engine failure mede and failure response. Failure detection and diagnosisframework of the engine systems is developed. On the basis of real-time simulation medel, a validationsystem f0r failure diagnosis algorithms is constructed.

Key words: Liquid propellant rocket engine;Engine fai1ure;Fault analysis;Failure mode;Real time simulation