基于多体分析的客车前独立悬架设计  

Design of Bus Front Independent Suspension Based on Multi-body Analysis

作　　者：韦韬 李明 黄焕超 WEI Tao;LI Ming;HUANG Huanchao(School Of Automotive Engineering,Guilin University Of Aerospace Technology,Gulin Guangxi 541004,China;China Highway Vehicle Machinery Corporation,Beijing 100011,China;Fangsheng Axle(Liuzhou)CO.,LTD.,Liuzhou Guangxi 545006,China)

机构地区：[1]桂林航天工业学院汽车工程学院,桂林541004 [2]中国公路车辆机械总公司,北京100011 [3]方盛车桥(柳州)有限公司,广西柳州545006

出　　处：《机械设计与研究》2022年第6期181-185,190,共6页Machine Design And Research

基　　金：广西科技重大专项(桂科AA18242049);柳州市科技重大专项(柳科计字202286)资助项目。

摘　　要：客车用双横臂前独立悬架可近似为多刚体系统,系统中各零件所受载荷复杂,用解析法来计算载荷较难确保结果的精度。本文通过建立悬架的几何拓扑模型初步确定系统的硬点坐标,在ADAMS中构建虚拟样机。通过系统的运动学仿真分析保证悬架定位参数的合理性,通过动力学分析获取悬架杆件铰接点的约束力,将所获约束力作为载荷对关键零件模型进行结构有限元分析,最后对构件实物进行试验测试。结果表明,仿真计算精度满足产品设计要求,相较于先建模再分析的传统设计方法,能够减少设计迭代,较大幅度地提高设计效率。The double wishbone front independent suspension of a bus can be approximated as a multi-rigid-body system.It is difficult to ensure the accuracy of the result by analytical methods because of the complexity of the load of each part in the system.In this paper,the hard point coordinates of the system are preliminarily determined by establishing the geometric topological model of the suspension,and the virtual model is built in the multi-body dynamics analysis software.The rationality of the suspension positioning parameters is ensured through the kinematics simulation analysis of the system,and then the binding force of the hinge points of the suspension structure is obtained through the dynamics simulation analysis.The binding force is used as the load to carry out the structural finite element analysis of the key component model,and finally the physical component is tested.The results show that the simulation accuracy meets the requirements of product design,and compared with the traditional design method of modeling first and then analyzing,it can reduce the design iteration and significantly improve the design efficiency.

关 键 词：双横臂独立悬架 多体动力学 约束力 有限元分析 

分 类 号：TH122[机械工程—机械设计及理论]