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运用小波包峭度包络的滚动轴承故障诊断

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Indexed by:期刊论文

Date of Publication:2011-12-15

Journal:振动、测试与诊断

Included Journals:PKU、CSCD、EI、Scopus

Volume:31

Issue:6

Page Number:720-723

ISSN No.:1004-6801

Key Words:小波包;峭度;包络谱分析;自动诊断

Abstract:根据滚动轴承振动信号的性质,提出了一种基于小波包系数、峭度最大值原则及包络谱分析的滚动轴承故障自动诊断方法.首先,用小波包将信号分解到不同的频段上,再对不同频段的小波包系数计算其峭度值;然后,根据峭度值最大原则,自动确定由轴承缺陷所引起的共振频率所在的频带;最后,对该频带的小波包系数进行包络谱分析,以确定故障频率.此方法能够提高滚动轴承故障诊断的可靠性和便捷性.

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