A Hybrid Method to Estimate Initial Faulty Time of Rolling Bearing

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	A Hybrid Method to Estimate Initial Faulty Time of Rolling Bearing
	Yan, Changfeng; You, Li; Kong, Yuanyuan; Wu, Lixiao
	2013
关键词	Initial faulty time rolling bearing EMD spectral kurtosis energy
页码	474-480
英文摘要	Time-frequency analysis is commonly used to diagnose the health of rolling bearings by processing vibration signals captured from the bearings. However, it cannot be guaranteed to be robust if the bearing signals are overwhelmed by large noise. In this paper, combining empirical mode decomposition (EMD) with spectral kurtosis (SK), a hybrid method to estimate initial faulty time of rolling element bearing is proposed. Firstly, EMD method is applied to decompose the raw vibration signal. The synthesized signal is then filtered by using an optimal band-pass filter based on SK. Finally, the energy of the filtered signal is calculate and fitted. The test data recorded the whole bearing life is used to validate the efficiency of the proposed method. The results show that the method can identify the faults earlier.
会议录	INTERNATIONAL CONFERENCE ON CONTROL SYSTEM AND AUTOMATION (CSA 2013)
会议录出版者	DESTECH PUBLICATIONS, INC
会议录出版地	439 DUKE STREET, LANCASTER, PA 17602-4967 USA
语种	英语
WOS研究方向	Automation & Control Systems
WOS记录号	WOS:000329350600082
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36956]
专题	机电工程学院
通讯作者	Yan, Changfeng
作者单位	Lanzhou Univ Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Yan, Changfeng,You, Li,Kong, Yuanyuan,et al. A Hybrid Method to Estimate Initial Faulty Time of Rolling Bearing[C]. 见:.