某车型方向盘和车身抖动问题的分析和优化  

Analysis and Optimization of Steering Wheel and Body Jitter of a Certain Vehicle

作　　者：谢贵山 赵肖斌 覃鹏飞 黄金旺 XIE Guishan;ZHAO Xiaobin;QIN Pengfei;HUANG Jinwang(SAIC GM Wuling Automobile Co.,Ltd.,Liuzhou Guangxi 545007,China)

机构地区：[1]上汽通用五菱汽车股份有限公司,广西柳州545007

出　　处：《汽车零部件》2022年第12期44-49,共6页Automobile Parts

摘　　要：汽车噪声、振动、平顺性(NVH)是决定汽车品质的关键性能,是乘客对汽车舒适性要求的具体表现,是汽车研发人员重点研究和解决的性能指标。本文对某车型在怠速工况下的方向盘和车身抖动进行了原因分析,并使用有限元分析软件进行模拟分析,找到了抖动发生的根本原因是电子扇隔振不足。对解决方案进行多次探索,经过分析和对比最终确定实施方案,并经实车验证。结果表明:方向盘振动X向降低了1/2,Z向降低了0.2~0.8 m/s^(2),提升了整车NVH性能。Automobile noise,vibration and harshness(NVH)performance is the key performance that determines the quality of automobile,the specific performance of passenger’s requirement for automobile comfort,and the key performance index for automobile R&D personnel to study and solve.The reasons of the steering wheel and body jitter of a certain vehicle under idling conditions were analyzed,and the finite element analysis software was used for simulation analysis.It is found that the root cause of the jitter is the insufficient vibration isolation of the electronic fan.The solution was explored for many times,and the implementation scheme was finally determined after analysis and comparison,which was verified by real vehicles.The results show that the steering wheel vibration decreases by 1/2 in X direction and 0.2~0.8 m/s^(2) in Z direction,which improves the NVH performance of the whole vehicle.

关 键 词：NVH性能 方向盘抖动 车身抖动 电子扇 隔振橡胶 

分 类 号：U461.91[机械工程—车辆工程]