乘用车悬架系统开裂原因分析与结构优化  

Crack Reason Analysis and Structure Optimization of Passenger Car's Suspension System

作　　者：苏和堂[1] 赵玉霞 陈黎卿[3] 

机构地区：[1]滁州职业技术学院机电工程系,安徽滁州239000 [2]滁州技师学院,安徽滁州239000 [3]安徽农业大学工学院,安徽合肥230036

出　　处：《山东交通学院学报》2017年第4期1-5,31,共6页Journal of Shandong Jiaotong University

摘　　要：针对某款乘用车悬架总成开裂的问题,建立悬架系统有限元分析模型。对副车架及上摆臂部件在制动、转向、垂直冲击3种工况下的应力进行有限元分析,找出应力最大的部位,从而对悬架部件的结构进行改进。优化前后的悬架有限元分析结果表明:优化后有效降低了悬架系统的应力。优化后的悬架分别在制动、转向、垂直冲击工况下进行可靠性道路试验,系统部件均未出现问题,说明该车悬架系统优化方案合理。For the crack of suspension assembly of a certain model of passenger car,a finite element analysis model is established in the paper. On the basis of this,the stress analysis is made of the subframe and the upper swinging arms under the three conditions of braking,steering and vertical impact to discover the maximum stress,making the improvement of the structure of suspension components. The finite element analysis results before and after the optimization show that the stress of the suspension system reduces effectively after the optimization.The road tests of reliability for the optimized suspension system are carried out under the respective conditions of braking,steering and vertical impact with no problems for the system components,which verifies the rationality of the optimization plan of the suspension system.

关 键 词：悬架 开裂 有限元 结构优化 

分 类 号：U463.33[机械工程—车辆工程]