传递函数法优化设计车身后悬软垫隔振性能  

Optimum Design on the Vibration Isolation of Vehicle Body Rear Suspension Cushion Using Transfer Function Method

作　　者：吴迪 付麒 陈星晨 

机构地区：[1]东风神宇车辆有限公司,湖北十堰442000

出　　处：《工业技术创新》2018年第1期5-8,共4页Industrial Technology Innovation

摘　　要：车身隔振效果的优劣直接影响驾驶员的操纵体验。基于车身悬置系统隔振机理,求取传递函数;对车身后悬软垫材料与参数进行选择,开展结构优化设计。成型的软垫形变量小于15%,刚度降低过半,减振性能大有改善。即使在发动机怠速工况下,隔振要求仍可得以满足。The advantages and disadvantages of vibration isolation effect directly affect the drivers＇ manipulation experience. Transfer function is obtained based on the vibration isolation mechanism of vehicle body suspension system. Structural optimization design is carried out by selecting the materials and parameters of vehicle body rear suspension cushion. The strain of molded cushion variable is less than 15%, and its stiffness is reduced by more than half, indicating that the vibration isolation performance is greatly improved. Even in the condition of engine idle speed, the vibration isolation requirement can still be satisfied.

关 键 词：车身后悬软垫 传递函数法:隔振 结构设计 

分 类 号：U467.1[机械工程—车辆工程]