AEO解调方法及在滚动轴承故障诊断中的应用  

Application of Analytic Energy Operator Demodulation Method to Fault Diagnosis of Rolling Bearings

作　　者：程军圣[1] 向天尧 杨兴凯[1] 杨宇[1] CHENG Jun-sheng;XIANG Tian-yao;YANG Xing-kai;YANG Yu(State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University,Changsha 410082, China)

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室,长沙410082

出　　处：《噪声与振动控制》2017年第3期151-155,共5页Noise and Vibration Control

基　　金：国家重点研发计划资助项目(2016YFF0203400);国家自然科学基金资助项目(51575168;51375152);智能型新能源汽车国家2011协同创新中心;湖南省绿色汽车2011协同创新中心资助

摘　　要：针对希尔伯特变换与传统能量算子解调方法的缺点,提出一种新的解调方法——解析能量算子(Analytic Energy Operator,AEO)解调。仿真信号分析结果表明,相对于希尔伯特变换与传统能量算子解调,解析能量算子解调方法具有较高的解调精度。基于解析能量算子解调,又提出基于AEO能量谱的滚动轴承故障诊断方法,对滚动轴承仿真和实验信号进行分析,与其它方法的对比结果表明所提出方法的有效性和优越性。Aimed at the disadvantages of Hilbert transform and the conventional energy operator demodulation methods,a new demodulation method,analytic energy operator(AEO)demodulation method,is proposed.Compared to Hilbert transform and the conventional energy operator demodulation method,the AEO has higher demodulation precision.On the basis of AEO energy spectrum,a rolling bearing fault diagnosis method is put forward.This method is applied to analyze the simulated signals and actually tested signals of the rolling bearing.The comparison of the results with those of some other methods shows that the proposed method is of effectiveness and superiority.

关 键 词：振动与波 解调方法 解析能量算子 滚动轴承 故障诊断 

分 类 号：TP911.6[自动化与计算机技术] TH133.3[机械工程—机械制造及自动化]