Gear fault signal modeling and detection based on alpha stable distribution

Due to limited information given by traditional local statistics, a new statistical modeling method for gear fault signals is proposed based on alpha-stable distribution. In order to fully take advantages of complete information provided by alpha-stable distribution, this paper focuses on testing the validity of the proposed statistical model. In the meantime, a new gear fault detection method based on an integrated parameter of alpha-stable model is proposed, which has shown better prospects than that based on traditional kurtosis.