基于小波包变换和Fisher判别的滚动轴承故障诊断

China Science and Technology Information(2009)

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Abstract
本文针对滚动轴承出现故障时产生的振动信号具有非平稳信号的特点,通过小波包变换提取故障信号的特征向量,采用Fisher判别分析对提取的特征向量进行故障分类。实验结果表明所提方法的有效性。
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Key words
Fisher discriminant analysis,fault diagnosis,rolling element bearing,wavelet packet transform
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