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行星齿轮箱齿轮分布式故障振动频谱特征

, PP. 118-125

Keywords: 风力机,行星齿轮箱,分布式故障,振动信号模型,特征频率,调制,频谱

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Abstract:

深入透彻地了解振动信号的频谱结构,有助于通过简单易行的频谱分析对行星齿轮箱进行故障诊断。考虑齿轮制造误差和分布式故障对啮合振动的调幅调频作用、以及行星轮通过效应对振动测试信号的调幅作用,建立了行星齿轮箱正常和分布式故障状态下的振动信号模型,推导了频谱解析表达式。给出了太阳轮、行星轮和齿圈分布式故障特征频率的计算公式。通过实验信号分析验证了上述理论分析结果,基于频谱分析诊断了自然产生发展的齿轮分布式故障。

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