液体火箭发动机涡轮泵状态监测与故障诊断系统研究

Condition Monitoring and Fault Diagnosing System of Liquid Propellant Rocket Engine Turbopump

针对火箭发动机地面试车时间短、工作转速高且重复性不好的特点 ,根据实时性、有效性、可靠性、开放性与通用性的系统设计原则 ,研制了火箭发动机涡轮泵状态监测与故障诊断系统—— TCMD2 0 0 0。该系统采用并行冗余结构 ,保证同步整周期采样的同时 ,实现了高速连续数据采集和存储 ,并应用了进动分析方法提高故障诊断的准确性。对 TCMD2 0 0 0系统进行了发动机试车故障监测考核 ,结果表明 ,所研制的 TCMD2 0 0 0系统达到了设计指标 ,适合火箭发动机的状态监测与故障诊断。在发动机研制过程中 。

In the development of a condition monitoring and fault diagnosing system of liquid propellant rocket engine turbopump, special aspects of rocket engine test, such as short time, high rotating speed of turbopump rotor, and poor repeatability of the test, have been taken into account. The reliability of the high speed and real time data acquisition is guaranteed by the parallel redundant structure of the condition monitoring and fault diagnosing system. The condition monitoring and fault diagnosing system has been applied in practical rocket engine tests. The results show that the system is suitable and effective in condition monitoring and fault diagnosing for LPRE.