Study on Vibration of Hypoid gear with backlash

Abstract

The hypoid gear pair is a main part of driving axle and it is one of the main sources of vibration and noise in the automobile transmission. Study on mechanisms of vibration and noise of the hypoid gear pair, and investigating on reducing its vibration and noise are of great significance. Firstly, a simplified dynamic model of the hypoid gears of main reducer, with considering the time-varying teeth stiffness and teeth surface friction damping, was established. Then, on the basis of the above work, a non-linear vibration equation of the hypoid gear with the backlash was derived. Lastly, a numerical simulation method was employed to calculate different gear backlash effects on the hypoid gear vibration behaviors caused by the gear worn, and effects on the gear non-linear vibration from different work speeds of gear and different loading torques were investigated.

Nonlinear vibration of hypoid gear with backlash

“…The hypoid gear pair transmission system consists of many nonlinear factors, such as time-varying mesh stiffness, transmission error, the tooth backlash, etc., which have great influences on the pair meshing stability and work reliability. Dequan Jin and Huibin Li [1,2], Jianping Gao [3], Zongde Fang, Jianjun Wang, Runfang Li [4][5][6], Kahraman A. [7][8][9][10][11][12][13][14][15] et al have performed a lot of theoretical and experimental studies on vibration problems from the teeth stiffness, gear backlash and eccentric quality.…”