Customized Wavelet for Bearing Defect Detection

[+] Author and Article Information
Brian T. Holm-Hansen, Robert X. Gao

Li Zhang

Department of Mechanical and Industrial Engineering, University of Massachusetts, Amherst, MA 01003

J. Dyn. Sys., Meas., Control 126(4), 740-745 (Mar 11, 2005) (6 pages) doi:10.1115/1.1850534 History: Received February 24, 2003; Revised November 14, 2003; Online March 11, 2005
Copyright © 2004 by ASME
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Signals obtained from a defective bearing (at 600 rpm, 11 kN radial load)
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Ball bearing with an integrated vibration sensor
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Procedure for implementing the wavelet transform on the bearing signal
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Sample spectra of impulse responses of the test bearing
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Impulse response obtained from the test bearing
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Scaling function obtained from the test bearing
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Wavelet derived from the impulse response of the test bearing
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Experimental setup used for the bearing tests
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Comparison of wavelet transforms using different mother wavelets
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Detection of bearing defect under various load conditions




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