An Estimating Method for Initial Faulty Time of Rolling Element Bearing Based on EEMD and Spectral Kurtosis

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	An Estimating Method for Initial Faulty Time of Rolling Element Bearing Based on EEMD and Spectral Kurtosis
	Kong, Yuanyuan; Wei, Yaobing; Yan, Changfeng; You, Li
	2013
关键词	Initial faulty time EEMD spectral kurtosis rolling element bearing
页码	1557-1561
英文摘要	Envelope demodulation analysis is an effective method to deal with vibration signals captured from rolling bearings. However, it is not easy to separate the fault component from the noise because the fault signals in presence of strong masking noise that happens in the early stage of bearing failure. Therefore, an approach to predict the initial failure time of rolling bearing based on the combination of EEMD and spectral kurtosis is proposed in this paper. On the one hand, EEMD is used to weaken the low-frequency interference and highlight the high-frequency resonance component. On the other hand, spectral kurtosis (SK) has a great ability of diagnostic detecting. The integration of the two methods can give the energy change of filtered signal over time distinctly by analyzing the historical data. Then the initial failure time of rolling bearing can be estimated. The method proposed in this paper is verified through an engineering example signal. The results show that this method can identify the faults earlier.
会议录	2013 6TH INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING (CISP), VOLS 1-3
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
WOS研究方向	Computer Science ; Engineering
WOS记录号	WOS:000341115000292
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36922]
专题	机电工程学院
通讯作者	Kong, Yuanyuan
作者单位	Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Kong, Yuanyuan,Wei, Yaobing,Yan, Changfeng,et al. An Estimating Method for Initial Faulty Time of Rolling Element Bearing Based on EEMD and Spectral Kurtosis[C]. 见:.