转向节锥面球头销装配力矩衰减研究  

Research on Assembly Torque Attenuation of Steering Knuckle Cone Ball Stud

作　　者：程稳正 苟黎刚 余小巧 张俊 宋子华 Cheng Wenzheng;Gou Ligang;Yu Xiaoqiao;Zhang Jun;Song Zihua(Geely Automobile Research Institute(NINGBO)Co.,Ltd.,Ningbo 315000)

机构地区：[1]吉利汽车研究院(宁波)有限公司,宁波315000

出　　处：《汽车工艺与材料》2024年第2期33-41,共9页Automobile Technology & Material

摘　　要：为解决某乘用车转向节锥面球头销连接在试车场试验中出现的异响问题,提出一种基于虚拟仿真的解决方法。首先根据路谱载荷极值,仿真接触面积变化趋势,找出接触面分离临界预紧力;仿真交变工作载荷作用下的残余预紧力,将残余预紧力控制在临界预紧力以上,以规避接触面分离过大导致异响;最后通过接头试验确定拧紧工艺。结果表明:该方法能够重新定义拧紧力矩,有效解决了路试异响问题。In order to eliminate abnormal sound of the knuckle cone ball stud of a passenger car on proving ground test,this paper proposed a new method based on virtual simulation.Firstly,the ball stud contact area variation tendency was simulated and the contact area critical preload was identified according to limit value of the road load data;then the residual preload under alternate working condition was simulated,and the residual preload was controlled larger than critical preload to avoid large contact area separation which will cause abnormal sound;finally,the tightening process was determined through joint test.The results show that this method can redefine the tightening torque,and the abnormal sound problem was eliminated successfully.

关 键 词：力矩衰减 转向节 锥面球头销 异响 

分 类 号：U466[机械工程—车辆工程]