Teager-Huang Transform Based Gear Crack Fault Detection and Diagnosis

Abstract

The newly developed Teager-Huang transform (THT) enables one to look at the evolution in time of a signals frequency components. In this paper, a novel application of Teager-Huang transform method to fault diagnosis of gear crack is presented. The methodology developed in this paper decomposes the original times series data in intrinsic oscillation modes, using the empirical mode decomposition (EMD). Then the Teager Kaiser Energy Operator (TKEO) technique is applied to each intrinsic mode function (IMF). Therefore, the time-frequency distribution of the vibration is obtained. The basic method is introduced in detail. The Teager-Huang transform is applied in the research of the faults diagnosis of the gear crack. The experimental results show that Teager-Huang transform can effectively diagnosis the fault of the gear crack.