某后驱SUV扶手箱抖动问题分析与控制
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摘要
针对某后驱SUV在发动机高转速时出现的扶手箱抖动问题,利用LMSTest.lab测试分析数据得出传动轴旋转振动引起中间支撑刚体模态与动力总成刚体模态耦合导致共振而产生;并通过LMS Virtual lab动力学仿真改变传动轴中间支撑橡胶刚度从而达到移频的效果,并最终通过实车验证使该问题得以解决控制。
Aiming at the problem of the armrest box jitter of a rear-drive SUV at high engine speed, the LMS Test.lab test analysis data is used to obtain that the rotational vibration of the propeller shaft causes the intermediate support rigid body mode to be coupled with the rigid assembly of the powertrain to cause resonance; And through the LMS Virtual lab dynamic simulation to change the stiffness of the middle support rubber of the propeller shaft to achieve the effect of frequency shift, and finally through the real vehicle verification to solve the problem.
Aiming at the problem of the armrest box jitter of a rear-drive SUV at high engine speed, the LMS Test.lab test analysis data is used to obtain that the rotational vibration of the propeller shaft causes the intermediate support rigid body mode to be coupled with the rigid assembly of the powertrain to cause resonance; And through the LMS Virtual lab dynamic simulation to change the stiffness of the middle support rubber of the propeller shaft to achieve the effect of frequency shift, and finally through the real vehicle verification to solve the problem.
引文
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[6]朱卫兵,陈微微,谢珍兰.传动轴引起的车内噪声研究与解决[J].装备制造技术,2012.11.
[2]高云凯.汽车动力总成弯曲振动及其控制方法的有限元分析与试验研究[J].吉林工业大学,1995,26(4):6-9.
[3]齐海政.高品质商用车动力学建模关键问题研究[J].吉林大学,2011,84-88.
[4]胡乃杰.黄波.微车用传动轴中间支撑的刚度分析与改进.机床与液压,2011.
[5]B.海兴,M.埃尔斯(著).孙鹏(译).汽车底盘手册[M].机械工业出版社,2012. 1.
[6]朱卫兵,陈微微,谢珍兰.传动轴引起的车内噪声研究与解决[J].装备制造技术,2012.11.