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Transactions: WSEAS TRANSACTIONS ON SYSTEMS
Transactions ID Number: 52-246
Full Name: Zhongqing Wei
Position: Doctor (Researcher)
Age: ON
Sex: Male
Address: Beijing University of Chemical Technology P.O. Box. No. 130, 15. Beisanhuan East Road, Beijing
Country: CHINA
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E-mail address: wains@126.com
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Title of the Paper: Incipient fault diagnosis method based on wavelet packet transform and energy operator for rolling element bearing
Authors as they appear in the Paper: Zhongqing Wei,Jinji Gao,Zhinong Jiang,Bo Ma
Email addresses of all the authors: wains@126.com
Number of paper pages: 10
Abstract: An envelope demodulation technique based on wavelet packet transform and energy operator was proposed, and it was applied to perform the incipient fault diagnosis for rolling element bearing. Through the analysis of vibration signals, the relative spectral entropy of envelope spectrum and the gravity frequency were constructed two-dimensional features vector to distinguish fault type. Furthermore, the K-nearest neighbors were used to identify faults. The proposed technique could avoid inaccurate diagnosis only depending on envelope demodulation of vibration signal. The experimental results proved that the proposed technique was very effective for rolling element bearing.
Keywords: Wavelet packets; Energy operator; Rolling element bearing; Incipient fault; Envelope spectrum; K-nearest neighbors
EXTENSION of the file: .doc
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