Application of order bi-cepstrum to gearbox fault detection

The order bi-cepstrum technique is introduced and applied effectively to gearbox faults diagnosis under run-up condition. This new method combines order tracking technique with bi-cepstrum 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 changed into angle domain stationary signal. In the end, the resampled signals are processed by bi-cepstrum technique. The experimental results show that order bi-cepstrum technique can effectively diagnosis the faults of the bearing.