Gear Fault Diagnosis Based on Order Tracking and Degree of Cyclostationarity

The Degree of Cyclostationarity technique is introduced and applied effectively to gearbox faults diagnosis under run-up condition. This new method combines order tracking technique with second order cyclo-stationary statistics analysis. The resampling signal can be obtained by resampling of the vibration signal that has been sampled in the time domain. Therefore, the time domain transient signal is transformed into angle domain stationary signal. In the end, the resampled signals are processed by Degree of Cyclostationarity technique. The experimental results show that Degree of Cyclostationarity technique can effectively diagnosis the faults of the gear crack.