Analysis of the effects of surface pitting and wear on the vibration of a gear transmission system

doi:10.1016/0301-679X(95)00037-5

Tribology International

Volume 29, Issue 1, February 1996, Pages 77-83

https://doi.org/10.1016/0301-679X(95)00037-5 Get rights and content

Abstract

A comprehensive procedure to simulate and analyse the vibrations in a gear transmission system with surface pitting, wear, and partial tooth fracture of the gear teeth is presented. An analytical model was developed where the effects of surface pitting and wear of the gear tooth were simulated by phase and magnitude changes in the gear mesh stiffness. Changes in the gear mesh stiffness were incorporated into each gear-shaft model during the global dynamic simulation of the system. The overall dynamics of the system were evaluated by solving for the transient dynamics of each shaft system simultaneously with the vibration of the gearbox structure. In order to reduce the number of degrees-of-freedom in the system, a modal synthesis procedure was used in the global transient dynamic analysis of the overall transmission ststem. An FFT procedure was used to transform the averaged time signal into the frequency domain for signature analysis. In addition, the Wigner-Ville distribution was also introduced to examine the gear vibration in the joint time-frequency domain for vibration pattern recognition. Experimental results obtained from a gear fatigue test rig at NASA Lewis Research Center were used to evaluate the analytical model.

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Analysis of the effects of surface pitting and wear on the vibration of a gear transmission system

Abstract

An efficient real-time implementation of the Wigner-Ville distribution

The Wigner distribution-A tool for time-frequency signal analysis, Part I

Philip J. Res.

Pseudo Wigner-Ville time-frequency distribution and its application to machinery condition monitoring

J. Shock Vibr.

Time-frequency domain analysis of vibration signal for machinery diagnostics (II) the weighted Wigner-Ville distribution

Analysis of gear vibration in the time-frequency domain