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Synchronous enhancement of periodic transient feature based on polar diagram for bearing fault diagnosis
Author(s): 
Pages: 635-638
Year: Issue:  6
Journal: Journal of Vibration Engineering

Keyword:  轴承故障诊断极坐标同步增强;
Abstract: 提出一种信号周期瞬态特征的极坐标检测方法,该方法在小波变换的基础上,针对信号中有限种可能的周期瞬态情况,将信号的小波变换的时频特征表示为极坐标图上某一区域的显著增强的特征,实现了周期瞬态特征的检测与增强.针对轴承的3种典型故障,采用极坐标同步增强策略,将轴承故障特征以显著的形式表示在极坐标上,实现了轴承故障的检测.
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