现代制造工程Issue(7)：124-128,5.
基于改进证据理论的齿轮泵故障诊断方法研究
Research on fault diagnosis of gear pump based on improved evidence theory
摘要
Abstract
Aiming at uncertainty of multi-sensor,a new fault diagnosis approach based on improved evidence is presented theory.Firstly,cosine between evidence vectors is defined,and conflict evidence criterion is proposed to determine the conflict.Secondly,tow-class robust fusion strategy is built up.Characteristic level fusion proceeds by way of RBF neural network to generate original evidence,then conflict evidence is found out by criterion and modified by similarity.Finally,the modified evidence is fused in combination formula.The gear pump vibration test proves the validity of the new method and fusion strategy by contrast with neural network,classical evidence theory and other improved methods.关键词
证据理论/信息融合/齿轮泵/故障诊断Key words
evidence theory /information fusion/ gear pump/ fault diagnosis分类
信息技术与安全科学引用本文复制引用
刘希亮,陈桂明,李方溪,张倩..基于改进证据理论的齿轮泵故障诊断方法研究[J].现代制造工程,2013,(7):124-128,5.
