Null space bearing composite fault diagnosis method based on fault features

作者: Ma Chunqing , Wu Chunguang , Zhai Hao , Wu Na , Cui Lingli

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摘要: Provided is a null space bearing composite fault diagnosis method based on features. According to the method, vibration model established according mechanism adopted, differential operator features constructed by means of Matlab programming model, self-adaptive decomposition carried out non-stationary signals, and local narrow-band signals containing are extracted demodulated obtain The faults different correspond parameters in an algorithm, further demodulated, can be accordingly, achieved.