滚动轴承早期故障的小波诊断方法  

Early Fault Diagnosis of the Rolling Bearing using Wavelet Transformation

作　　者：王丽丽[1] 王超[1] 蔡正敏[1] 

机构地区：[1]西安交通大学

出　　处：《应用力学学报》1999年第2期95-99,共5页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金

摘　　要：利用包络分析结合小波变换抽取强背景噪声下滚动轴承振动信号中的故障信息，对滚动轴承早期故障进行诊断，对五套３０７号轴承进行的成功诊断表明，提出的方法准确有效，适用于滚动轴承的在线监测与诊断。An efficient method is proposed for diagnosis of the rolling bearing's early fault. The fault signal is abstracted and amplified from the vibration signal of the rolling bearing with high background noise using narrow band filtration, envelope analysis and wavelet transformation. Several 307 rolling bearings are considered as examples to illustrate the validity. This method is very suitable for the online inspection and diagnosis of the rolling bearing.

关 键 词：轴承 故障诊断 小波变换 小波诊断 

分 类 号：TH133.33[机械工程—机械制造及自动化]