关键词: 姿控火箭发动机;失效模式;故障仿真;故障监测

Abstract: Considering some faults which had occurred during engine tests or would occur in thefutrue, a steady on fault models of constant pressure feed bipropellant attitude control engine systemwere derived. By means of gradient methcxl, the models were sovled. Then, several tyPical faults weresimulated, and effects of these faults were analyzed, fault modes of these faults were developed withsome selected parameters. Finally, the key parameters which are used to separate and detect differentfaults were catried out.

Key words: Attitude control rocket engine;Failure mode;Fault simulation;Fault detection