期刊
TRIBOLOGY INTERNATIONAL
卷 35, 期 12, 页码 793-800出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0301-679X(02)00063-4
关键词
discrete wavelet transform; bearing faults; impulses
Bearing race faults have been detected by using discrete wavelet transform (DWT). Vibration signals from ball bearings having single and multiple point defects on inner race, outer race and the combination faults have been considered for analysis. The impulses in vibration signals due to bearing faults are prominent in wavelet decompositions. It is found that the impulses appear periodically with a time period corresponding to characteristic defect frequencies. It has been shown that DWT can be used as an effective tool for detecting single and multiple faults in the ball bearings. (C) 2002 Published by Elsevier Science Ltd.
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