整车测试中悬架平顺性问题的仿真与试验研究

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.