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行星齿轮箱故障诊断的幅值解调分析方法

, PP. 107-111

Keywords: 风力机,行星齿轮箱,故障诊断,调幅,解调,包络谱

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Abstract:

齿轮故障的调幅调频效应以及振动传递路径的变化使得行星齿轮箱振动信号频谱具有复杂的边带结构。调幅部分包含齿轮故障信息。为了简化诊断分析,根据行星齿轮箱振动信号的调幅特点,提出了幅值解调分析方法。推导了包络谱的解析表达式,总结归纳了太阳轮、行星轮和齿圈故障振动信号包络谱的频率结构特点。通过行星齿轮箱故障实验信号分析验证了上述理论分析结果,基于包络谱诊断出了太阳轮、行星轮和齿圈的局部损伤故障。

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