Bearing Fault Transient Components Based on Absolute Autocorrelation Detection and Feature Expression Research

Abstract

Abstract-The article on the basis of analyzing the traditional autocorrelation, put forward an improvement on the transient impact composition of autocorrelation detection method, this method is able to signal the periodic transient component with more parameters. Under various faults of bearing vibration signal applications show that this method can very effectively expressed in the vibration impact characteristics, and can be conducted according to the characteristics of bearing fault diagnosis. The idea of this method is based on signal absolute value instead of the envelope calculations, so it can reduce the computational complexity, still can obtain good results.