智能化故障诊断技术的研究与应用

智能化故障诊断技术的关键是基于数据预处理方法的故障模式识别理论,其中数据预处理方法主要有小波分析、主成分分析和粗糙集理论等,故障模式识别理论主要有专家系统故障诊断法、模糊故障诊断法、灰色模型故障诊断法、神经网络故障诊断法、信息融合故障诊断法和基于范例推理的故障诊断法等.本文对各类故障模式识别方法的诊断原理、特点及其应用进行了比较和分析,并指出了故障诊断技术的发展趋势.

The research and application of intelligent fault diagnosis methods

The main point of intelligent fault diagnosis theory is fault mode dis tinguish principle based on data processing methods. Data processing methods mai nly include wavelet analysis, main component analysis and rough theory. Fault di agnosis theory mainly includes expert system fault diagnosis, fussy fault diagno sis, grey mode fault diagnosis, neural network fault diagnosis,data fusion faul t diagnosis and CBR fault diagnosis. The principle and application of each metho d are introduced and analyzed. Finally, the development trends of fault diagnosi s theory are presented.