Research On Rolling Bearing Fault Diagnosis Methods Based On Shock Pulse Method

Rolling bearing is one of the most familiar components in rotating machinery, and the running states will affect the whole machine's functions directly. Firstly,the fault vibration property,the failure forms and the failure cause are analyzed. Aiming at the characteristics of the bearing faults,shock pulse method (SPM) is proposed in this paper to diagnose bearing fault. The signals are processed by band-pass filtering,envelope demodulation, vibration signals transformation into decibel value and amplitude analysis. Then a new method is brought forward for the fault diagnosis,which based on the wavelet packets and shock pulse method (SPM),the new methods have been verified by the experiments. Finally the software for the fault diagnosis system of the rolling bearings is designed by LabVIEW,which can extract the fault characteristics and diagnose the fault of the rolling bearing effectively.