基于包络分析的灰色关联度诊断及在柴油机故障诊断中的应用  

Gray Relational Degree Method Based on Envelopment Analysis and Application in Diesel Engine Failure Diagnosis

作　　者：李智[1] 陈祥初[1] 刘政波[1] 张振仁[1] 

机构地区：[1]西安第二炮兵工程学院,西安710025

出　　处：《小型内燃机》2000年第1期42-46,共5页

摘　　要：本文利用高斯小波进行解包络分析,提取包络分析的时域特征参数。对特征参数进行模糊处理和隶属度计算,在此基础上设计出故障特征向量,进行灰色关联度分析,从而把包络解调分析、模糊数学和灰色关联分析有机结合在一起,综合它们的优势,进行故障分类和识别。The Characteristic parameters of time-domain are obtained by applying Gauss wavelet to envelopment analysis (EA).By fuzzying these parameters and calculating the membership degree,characteristic vectors to failures are designed to analyze the gray retional degree (GRD).So it can supply a new train of thinking for failure classification and identification by combining the EA and fuzzy method with the GRD.

关 键 词：故障诊断 小波分析 灰色关联度 包络分析 柴油机 

分 类 号：TK428[动力工程及工程热物理—动力机械及工程]