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| 关于通过悬架改进设计优化汽车转向特性的研究 | |
| 引用本文： | 海贵春,谷正气,骆军,吴彤峰,向宇.关于通过悬架改进设计优化汽车转向特性的研究[J].汽车工程,2009,31(1). |
| 作者姓名： | 海贵春 谷正气 骆军 吴彤峰 向宇 |
| 作者单位： | 1. 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082;上海世科嘉技术研发有限公司,上海,201209 2. 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082 3. 上海世科嘉技术研发有限公司,上海,201209 4. 广西工学院汽车工程系,柳州,545006 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 对某SUV车建立了刚柔耦合整车系统虚拟样机模型,进行了稳态转向特性仿真分析,发现该车具有先不足转向后过多转向的问题,并且中性转向点的侧向加速度值an偏小.通过对悬架刚度、稳定杆刚度的优化设计,解决了该车的过多转向问题,使之具有了适度的不足转向特性,并且使an达到了设计要求.最后对改进前后的方案进行了对比分析及试验验证,说明优化的效果是非常明显的. |
| 关 键 词： | 转向特性 不足转向 过多转向 优化 |
A Study on the Optimization of Vehicle Steering Characteristics by Suspension Modification |
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| Hai Guichun,Gu Zhengqi,Luo Jun,Wu Tongfeng,Xiang Yu.A Study on the Optimization of Vehicle Steering Characteristics by Suspension Modification[J].Automotive Engineering,2009,31(1). | |
| Authors: | Hai Guichun Gu Zhengqi Luo Jun Wu Tongfeng Xiang Yu |
| Institution: | Hai Guichun1,2,Gu Zhengqi1,Luo Jun2,Wu Tongfeng3 & Xiang Yu31.Hunan University,Key State Laboratory of Advanced Technology , Manufacturing for Vehicle Body,Changsha 410082,2.SICAR Vehicle Technology Development Co.,Ltd.,Shanghai 201209,3.Department of Automobile Engineering,Guangxi University of Technology,Liuzhou 545067 |
| Abstract: | A rigid-flexible coupled model as the virtual prototype of a SUV is built,and a simulation is conducted on its steady-state steering characteristics,which indicates that the vehicle shows understeer first and then oversteer,with a too small lateral acceleration on neutral point The problem of oversteer is resolved by changing the spring rate of suspension and the stiffness of torsion bar,leading to a reasonable understeer and a lateral acceleration,meeting design requirements.Finally,comparative analysis an... |
| Keywords: | steering characteristic understeer oversteer optimization |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |