车身后减振器安装点改进设计  

Body Strut Attachment Improved Design for Rear Suspension

作　　者：刘洋 黄涛 劳兵 徐毓 LIU Yang;HUANG Tao;LAO Bing;XU Yu(SAIC GM Wuling Automobile Co.,Ltd,LiuZhou 545007,China;Hunan Aisn Auto R&D CO.,Ltd,ChangSha 410082,China;Guangxi Yucai Machinery Company Limited,YuLin 537000,China)

机构地区：[1]上汽通用五菱汽车股份有限公司,柳州545007 [2]湖南湖大艾盛汽车技术开发有限公司,长沙410082 [3]广西玉柴机器股份有限公司,玉林537000

出　　处：《汽车科技》2022年第1期97-102,共6页Auto Sci-Tech

摘　　要：车身后减振器安装点钣金侧开裂是乘用车耐久试验常见故障之一。本文回顾了某七座SUV后减振器安装点开裂问题,并从载荷和结构设计角度给出了发生此问题的原因。同时,结合力学设计基本原则,设计了一种减振器安装点结构,在后视图上减振器安装点落在减振器中心轴线上,钣金安装平面竖直向上。通过仿真验证,此结构可以显著降低车身侧钣金应力水平,避免钣金出现耐久开裂问题。Body strut attachment cracking is one of the most common faults in durability test of passenger vehicle.The paper reviewed the body strut attachment cracking in a seven passenger SUV.Chassis load and body design is analyzed for identifying the cause of the problem.A new strut attachment structure is given by considering the mechanical design principles.The position of strut attachment is in the line of strut central axis in back view,and the panel is upright.The effectiveness of the structure is verified by CAE simulation.The structure can significantly reduce panel stress,and avoid sheet metal cracking.

关 键 词：后减振器 开裂 改进方案 

分 类 号：U463.82[机械工程—车辆工程]