整车测试中悬架平顺性问题的仿真与试验研究
首发时间:2015-11-25
摘要:本文分析了车身固有频率、阻尼比、车身与车轮部分质量比、悬架与轮胎的刚度比四项悬架设计参数对频率加权后的车身加速度、悬架动行程和轮胎动载荷方均根值的影响。结果表明,为得到良好的舒适性可以选择降低固有频率和阻尼比。但是高舒适性意味着较低的通过性,同时减小了悬架的工作空间。
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Simulation and Experimental Analysis of Vehicle Ride Comfort in Overall Vehicle Testing
Abstract:In this paper A 7-DOF dynamic model is established to analyze the effects of suspension parameter, such as natural frequency, damping ratio, vehicle body-wheel mass ratio, suspension-wheel stiffness ratio on vibration responses, including the vertical accelerations of vehicle body, the dynamic deflection of suspension and the dynamic load of tires. The results show that, lower the natural frequency and damping ratio will obtain good comfort. However, higher comfort means lower passing ability while at the expense of the work space of suspension.
Keywords: Vehicle Engineering Ride Comfort Suspension Parameter Dynamic Model
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No.4662079111103514****
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