火箭推进2012，Vol.38Issue(6)：62-69,8.
基于振动检测的发动机故障诊断算法研究
Research on liquid rocket engine fault diagnosis algorithm according to vibration detection
摘要
Abstract
A rocket engine fault diagnosis algorithm based on the vibration signal detection is pro- posed in this paper. The characteristics of vibration signal as the engine fault occurs are analysed. The selection of fault diagnosis indexes, vibration signal pretreatment, feature extraction, state identifica- tion and diagnosis decision are introduced respectively in the scheme. The algorithm that adopts the envelope curve method of amplitude and the vibration frequency parameters to diagnose the engine fault was studied. The engine hot test verified the correctness of the algorithm, which adopts the detection method of rocket engine vibration signal to judge the engine fault.关键词
振动测量/故障诊断/算法Key words
vibration detection/fault diagnosis/algorithm分类
航空航天引用本文复制引用
陈海峰,赵政社,张少博..基于振动检测的发动机故障诊断算法研究[J].火箭推进,2012,38(6):62-69,8.基金项目
中国航天科技集团公司支撑项目 （）
