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基于EMD解调方法的齿轮早期故障诊断

Keywords: 早期故障诊断,齿轮缺陷,EMD方法,hilbert解调

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Abstract:

为了提取早期数据的故障信息,对大型机电设备进行预知的故障诊断,针对某高线轧机近期发生的一次辊箱齿轮打齿故障,采用基于经验模式分解(empiricalmodedecomposition,简称EMD)技术和Hilbert包络解调分析相结合的方法,获得了早期裂纹故障信息被清晰提取的结果.对机械早期故障振动信号的分析结果表明,基于EMD的分解技术加包络解调法能有效地提取机械故障振动信号的特征,利于提早发现故障隐患.

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