The dynamic model of the cylindrical gear transmission system is built in consideration of the time-varying mesh stiffness and gear errors. Dynamic load of the bearing is taken as the excitation, Vibration and noise radiation of the gear reducer is researched by using FEM/BEM, then the time history of node vibration displacement and noise spectrum of the gearbox are obtained, and the effect of the excitation of frequency doubling of mesh frequency on the gearbox vibration and noise radiation are illustrated. The effect of input speed and operating load on vibration and noise radiation are researched, then the rule of dynamic load with speed, the rule of noise radiation with load, and the frequency range of the gearbox resonance are obtained. The study provides useful theoretical guideline to the design of the gearbox.
Zhou Jianxing Liu Geng Wu Liyan.
Research on The Effect of Operating Conditions on Vibration and Noise Radiation of a Gear Reducer[J]. Journal of Vibration and Shock, 2013, 32(8): 193-198
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