A RAILWAY VEHICLE ROLLING BEARING FAULT DIAGNOSIS METHOD BASED ON MATCHING PURSUIT PRETREATMENT

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (21) : 132-137.

Chen Na 1,3 Yang Shaopu 2 Pan Cunzhi 2

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Abstract

A bearing fault diagnosis algorithm is proposed based on matching Pursuit pretreatment. This method can avoid the experience dependence on bandpass filtering of traditional envelope spectrum methods. This method also can remove the additional interference frequency component from processing chain of the traditional methods, and it can precisely extract the failure frequency of damage bearings. By testing on real collecting signals on running-wheel bench, this method has some advantages over the traditional method of envelope spectrum, and it can effectively extract the wheel failure of the bearing damage.

Key words

matching pursuit / fault diagnosis / intermodulation / wheel bearing

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Chen Na 1,3 Yang Shaopu 2 Pan Cunzhi 2. A RAILWAY VEHICLE ROLLING BEARING FAULT DIAGNOSIS METHOD BASED ON MATCHING PURSUIT PRETREATMENT[J]. Journal of Vibration and Shock, 2017, 36(21): 132-137

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