一种汽车转向节的轻量化设计  

Lightweight Design of an Automobile Knuckle

作　　者：赵超尘 吴迪 王海森 孙志远 刘蕴博 尤广毅 程振青 吴景铼 ZHAO Chaochen;WU Di;WANG Haisen;SUN Zhiyuan;LIU Yunbo;YOU Guangyi;CHENG Zhenqing;WU Jinglai(Automotive Engineering Technology Institute,Hefei University of Technology,Hefei Anhui 230009,China;Automotive Engineering Technology Institute Limited Company,Hefei University of Technology,Hefei Anhui 230009,China)

机构地区：[1]合肥工业大学汽车工程技术研究院,安徽合肥230009 [2]合肥工大汽车工程技术研究院有限公司,安徽合肥230009

出　　处：《汽车零部件》2020年第4期1-6,共6页Automobile Parts

基　　金：安徽省新能源汽车暨智能网联汽车产业技术创新工程项目。

摘　　要：针对某原铸铁材料转向节,采用材料替换和结构优化设计的方法对其进行轻量化设计。首先利用CATIA三维软件建立原转向节模型,将材料更换为铝合金材料ZL114A-T6。由于原结构强度在给定工况下不满足要求,将原结构与轮毂法兰通过钢套进行连接,并增加了驱动轴套厚度。将优化后的转向节用Nastran软件进行有限元分析,结果表明新转向节结构能满足各种汽车行驶工况下的强度要求。优化后转向节质量从81 kg降低至51 kg,减重比例达到37%。A cast iron knuckle was lightweight designed by replacing the material and optimizing the structure. The CATIA 3 D softwarewas used to build the original knuckle model, and the material was replaced by aluminum alloy ZL114 A-T6 to reduce the weight of the knuckle.Due to that the strength of the original structure did not meet the requirements under various loads conditions, a steel sleeve was added to theconnecting part of the hub flange and the wall thickness of driving shaft sleeve was increased. The Nastran finite element analysis results showthat the new knuckle can meet the requirements of strength under various loads conditions. The optimized knuckle mass is reduced from 8. 1 kgto 5. 1 kg, where the weight is reduced by 37%.

关 键 词：转向节 轻量化 结构优化 

分 类 号：U463.4[机械工程—车辆工程]