液发推力室和涡轮泵故障监测与诊断技术研究

研究了液发推力室和涡轮泵故障监测与诊断技术,介绍了取得的主要研究成果,内容包括:试车结果统计与故障特性分析、故障模式与影响分析、故障数据库的设计与实现、状态分类与特征分析等.此外也介绍了基于人工神经网络理论的动态过程监测与诊断算法、基于时序分析的稳态过程监测与诊断算法和基于频谱方法的事后故障分析与诊断等故障监测与诊断算法.最后,介绍了所研制的工程应用系统,并给出了具体的故障监测与诊断实例. 

Study on Fault Monitoring and Diagnosis Techniques for Thrust Chamber and Turbo-pump Systems of Liquid Rocket Engines

It is shown that most of the failures of liquid propellant rocket engines pressured by turbo pump systems take place at thrust chamber and turbo pump systems.A brief introduction to the study on fault monitoring and diagnosis techniques for thrust chamber and turbo pump systems of liquid propellant rocket engines has been made. The main contents are faults statistics and property analysis of fire tests results, failure modes and effect analysis, the design and realization of failure database system, condition classifiers and character analysis, and so on. In addition, several algorithms for fault monitoring and diagnosis are also included. Finally, an engineering application system for fault monitoring and diagnosis of thrust chamber and turbo pump systems is demonstrated and some application samples are also illustrated.