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《Journal of Northeastern University(Natural Science)》 2014-01
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Simulation on 3-D Contact Nonlinear Dynamic Characteristic in Gearbox Coupling System

LIANG Ming-xuan;YUAN Hui-qun;LI Yan;YU Yin-xin;School of Mechanical Engineering & Automation,Northeastern University;School of Sciences,Northeastern University;  
Considering the drawbacks of existing dynamics model and analysis method of gear transmission system,the dynamic analysis method based on perfectly elastic body w as presented. A certain type of marine gearbox w as taken as the reserch object. Based on explicit dynamic finite element method,the 3-D dynamic contact nonlinear model of housing-bearing-helical gear pair system w as established by considering the coupling effect betw een components. The dynamics characteristics on the key components w ere obtained by dynamically simulating the system,then compared w ith uncoupled model. It is show n that the stress distributions both on rolling elements and teeth surface are uneven and the coupling among the parts aggravates the impact effect in the gearbox. Finally the results are verified by Hertzian line contact theory.
【Fund】: 国家自然科学基金资助项目(51275081);; 沈阳市科技计划项目(F12-277-1-42)
【CateGory Index】: TH132.41
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