汽车转向节拓扑优化方法研究及应用  

Study and Application of Topology Optimization Technique for Vehicle Steering Knuckles

作　　者：兰凤崇[1,2] 张浩锴[1,2] 王家豪[1,2] 陈吉清[1,2] 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510640 [2]华南理工大学,广东省汽车工程重点实验室,广州510640

出　　处：《汽车工程》2014年第4期464-468,490,共6页Automotive Engineering

基　　金：广东省科技厅产学研合作项目(2011A090200107)资助

摘　　要：为使汽车悬架系统中机件转向节在轻量化的基础上满足各工况下的汽车动力学性能要求,运用折衷规划法定义多工况下转向节的静态刚度和第1阶模态频率最大化的综合目标函数,进行结构的拓扑优化。以某方程式赛车转向节为例进行优化的结果表明,转向节的刚度和1阶模态频率均有显著提高,质量有所减轻,说明该方法可行有效。For steering knuckle, the key part of vehicle steering system, to meet the dynamics performance requirements of vehicle in different conditions on the base of lightweighting, a combined objective function for maximizing both the static stiffness and the first order modal frequency of steering knuckle under multi-conditions is defined by applying the compromise programming technique, and a structural topology optimization is conducted on the steering knuckle of a Formula racing car as an example. The results show that both the static stiffness and the first order modal frequency of steering knuckle increase significantly with some reduction in its mass, indicating the feasibility and effectiveness of the technique adopted.

关 键 词：转向节 多工况 折衷规划 拓扑优化 

分 类 号：U463.46[机械工程—车辆工程]