齿轮表面的疲劳磨损是齿轮故障的主要形式之一。
Fatigue wear on the surface of gear is one of the main kinds of failure of the gear.
结果表明，双谱和倒双谱分析方法对识别齿轮故障是可行的、有效的。
Experimental results showed that bispectrum and bicepstrum were feasible and effective for gear fault diagnosis.
诊断齿轮故障的方法较多，但普遍认为振动和噪声诊断是非常有前途的方法。
There are many ways to diagnose fault of gear, but vibration and noise diagnosis are generally considered most promising method.
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