伪魏格纳分布和连续小波变换在变速箱故障诊断中的应用  

The Application of Pseudo-Wigner and Continuous Wavelet Transform in Gearbox Fault Diagnosis

作　　者：张梅军[1] 何世平[1] 葛强盛[1] 刘念[1] 熊明忠[2] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007 [2]南京汽车研究所,江苏南京210009

出　　处：《解放军理工大学学报（自然科学版）》2001年第1期77-81,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

摘　　要：将伪魏格纳分布和连续小波变换理论应用于汽车变速箱故障诊断 ,给出了变速箱故障振动信号的基本模型 ,并进行了变速箱故障的实例分析 ,结果表明 ,伪魏格纳分布和连续小波变换与传统的谱分析相比 ,不仅能形象、直观地反映变速箱故障信息 。By using the Pseudo Wigner distribution and continuous wavelet transform in the gearbox fault diagnosis, we have developed a basic model for vibration due to faults in a gearbox. Power spectrum、Pseudo Wigner and continuous wavelet transform are employed to first analyze and then compare the vibration signals. The experimental result shows that Pseudo Wigner and continuous wavelet transform has stronger representation than conventional spectrum analysis.

关 键 词：伪格纳分布 连续小波变换 故障诊断 振动模型 汽车变速箱 信号处理方法 时域分析 频域分析 

分 类 号：U463.212[机械工程—车辆工程] TN911.7[交通运输工程—载运工具运用工程]