基于激光自混合传感器的齿轮局部故障振动信号分析

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建立了齿圈局部故障调频现象模型, 分析了故障轮齿啮合频率及其倍频两侧边频带的产生机理, 给出了齿圈局部故障特征频率的计算公式, 建立了倒频谱分析模型。采用激光自混合传感器, 分别从径向和轴向两个方向采集齿轮箱振动信号波形。在齿轮箱1Hz和2Hz两种不同输出转频下, 分别研究了无故障齿轮箱和故障齿轮箱的振动信号特征。通过实验研究验证了理论推导结果。
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