Self-excited vibration of driveline for vehicle launch

被引:5
|
作者
吴光强 [1 ,2 ]
栾文博 [1 ]
机构
[1] College of Automotive Engineering,Tongji University
[2] Institute of Industrial Science,University of Tokyo
基金
中国国家自然科学基金;
关键词
launch shudder; self-excited vibration; torsional vibration; the slope of friction coefficient with relative slip speed; viscous damping;
D O I
10.15918/j.jbit1004-0579.2013.03.021
中图分类号
U463.2 [传动系统];
学科分类号
080204 ; 082304 ;
摘要
The launch shudder phenomenon induced by self-excited vibration of driveline was studied with a compact car equipped with AMT as research object. The research showed that self-excited vibration was closely related with damping of driveline,the variation of friction coefficient,equivalent radius of friction plate and applied force of pressure plate. Six DOFs torsional vibration model of vehicle driveline was established according to the parameters of the certain compact car. The simulation was carried out and the result was compared with test data. It was found that the negative slope of friction coefficient with relative slip speed does not necessarily lead to self-excited vibration and the frequency of self-excited vibration on 1 st gear is near to the 1 st order of torsional natural frequency.The influence of each viscous damping in driveline on self-excited vibration was analyzed by simulation and the results showed that increasing the torsional dampings of half-axles and tires properly was effective to improve launch shudder phenomenon.
引用
收藏
页码:330 / 336
页数:7
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