液体发动机故障检测与诊断中的基础研究问题

Fundamental study of fault monitoring and diagnostic technology of liquid rocket engine

关键词:  液体推进剂火箭发动机  发动机故障  故障诊断  故障检测  述评

Key words:  Liquid propellant rocket engine  Engine failure  Fault diagnosis  Fault detection  Review

摘要:

液体火箭发动机故障检测与诊断是当前航天推进系统研究中迫切需要解决的关键技术。根据我国当前这项技术发展的实际情况,必须提高研究水平和加快研究进程,做好基础性的研究工作。介绍了我国在建立泵压式液体火箭发动机故障模式、标准数据库和改进人工神经网络算法与时序分析算法等方面所做的工作。提出了深入开展故障仿真研究和开发实用故障检测与诊断系统的建议。

Abstract:

Fault monitoring and diagnose of liquid rocket engine is the key problem in propulsion system. Based on the practical technological status in China theoretical fundamental research should be put forward to improve the study level and accelerate the progress. The fault mode establishment,standard database,fault monitoring,diagnose method and algorithmic study in liquid rocket engine in our country were introduced. Suggestions on fault, simulation investigation and fault diagnosis system development were made.