Fault diagnosis system of rolling bearing based on wavelet transform

By analyzing the relationship between the fault and the vibration of the rolling bearing,the rolling bearing fault diagnosis method through the resonance demodulation and wavelet analysis were presented.The band-pass filter was implemented in processing the vibration signal of rolling bearing by using wavelet transform to get the high-frequency inherent vibration signal.Then an envelope analysis was used to extract and diagnose the fault feature of the high-frequency inherent vibration signal.