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运用小波包峭度包络的滚动轴承故障诊断

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2011-12-15

Journal: 振动、测试与诊断

Included Journals: Scopus、EI、CSCD、PKU

Volume: 31

Issue: 6

Page Number: 720-723

ISSN: 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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