英文标题
Application of Local Characteristic-scale Decomposition in Gear Fault Diagnosis
英文摘要
The local characteristic-scale decomposition(LCD) is a newly self-adaptive signal decomposition method, can decompose any complicated signal into a number of intrinsic scale components(ISC) whose instantaneous frequencies own physical sense, so it is especially suitable for processing the multi-component amplitude-modulated and frequency-modulated signal.Firstly ,basic theories and ideas of LCD was described, and then the detail step of signal decomposition using LCD is given, finally, a simulation signal was analyzing by using LCD method and empirical mode decomposition (EMD) method, Through the comparison and analysis directly demonstrate the superiority of the LCD method..Finally, the LCD method applied to the actual gear fault ,aiming at the IMF applied the envelope analysis can identify gear fault frequencies effectively and demonstrating this method is feasible in gear fault diagnosis.
翻译关键词
Local characteristic-scale decomposition
Intrinsic scale component
Envelope analysis
Gear fault diagnosis
会议名称
2014年全国设备监测诊断与维护学术会议、第十六届全国设备监测与诊断学术会议、第十四届全国设备故障诊断学术会议暨2014年全国设备诊断工程会议
主办单位
中国机械工程学会;;中国振动工程学会;;中国设备管理协会
