捷达轿车前横向稳定杆改进设计及仿真验证  

The improvement design and simulation verification of the front stabilizer bar of Jetta car

作　　者：李煜华 王艳华 刘宇翔 杜聪 Li Yuhua;Wang Yanhua;Liu Yuxiang;Du Cong(School of Energy and Power Engineering, North University of China, Shanxi Taiyuan, 030051, China)

机构地区：[1]中北大学能源动力工程学院,山西太原030051

出　　处：《机械设计与制造工程》2019年第3期69-73,共5页Machine Design and Manufacturing Engineering

基　　金：山西省自然科学基金资助项目(201701D121082)

摘　　要：为解决捷达轿车在高速过弯时侧倾现象严重从而对操纵性产生严重影响的问题,对其横向稳定杆采取了将弹簧钢换成高强度钢、改变过渡区角度和变截面3种设计方案,利用有限元方法对3种方案进行仿真分析。然后将得到的应力、位移和扭转角刚度数据进行分析比对,综合性能和经济等因素,从而确定变截面设计为最优方案。最后利用莫尔积分法,验证了变截面方案的准确性。结果表明,优化后的稳定杆在高速过弯时能够大幅度减少杆的最大位移以及最大应力,显著提高了捷达轿车的行驶稳定性和操纵性。In order to solve the problem of serious impact on the dumping of the Jetta car at high-speed cornering, the three options of replacing spring steel with high-strength steel, changing the angle of the transition zone, and variable section are presented. Then the finite element method is used to the front stabilizer bar. Three kinds of problems are simulated and the data of stress, displacement and torsional stiffness are analyzed. Comprehensive performance and economy and other factors are finally determined to use the variable section design as the optimal solution. Finally, the accuracy of the variable cross-section problem is verified by the Moore integral method. The results show that the optimized stabilizer bar can greatly reduce the displacement and the stress concentration when cornering at high speeds, which significantly improves driving stability and maneuverability.

关 键 词：横向稳定杆 变截面设计 扭转角刚度 有限元分析 

分 类 号：U463.33[机械工程—车辆工程]