利用小波变换方法来处理轮齿表面故障的诊断问题。在疲劳试验中,测量来自齿轮传动箱及齿根应力的振动加速度以及观察轮齿表面。随着疲劳试验的进展,齿轮的轮齿表面由于剥落损伤而受损。当一个轮齿失效时,使用振动分析,可以诊断出失效的轮齿。然而,由于邻近的多数失效轮齿的原因,诊断出每一个失效的轮齿是困难的。使用齿根应力的时间-频率分析能够可以发现轮齿表面的失效位置。 Using Wavelet Transform to Deal with the Diagnosis of Gear Surface Faults. In fatigue tests, vibration acceleration from gearbox and root stress is measured and the gear surface is observed. As the fatigue test progresses, the gear tooth surfaces are damaged by spalling damage. When one tooth fails, vibration analysis can be used to diagnose the failed tooth. However, it is difficult to diagnose each failed tooth because of the proximity of the majority of failed teeth. Time-frequency analysis using tooth root stress can reveal the location of the failure of the gear tooth surface.