基于HyperWorks某三轮汽车车架多目标优化设计

Multi-objective Optimization of a 3-wheel Vehicle Frame Based on HyperWorks

以有限元分析软件HyperWorks为基础,以某三轮汽车车架为研究对象,分别以静态多工况下的刚度最大化和以动态振动频率最大化为目标函数,进行拓扑优化,得到两种不同的结果。为了优化设计更加合理,又以多目标函数对车架进行拓扑优化,使其同时满足静态刚度和模态的要求,验证了该方法的合理性,为三轮汽车车架的多目标优化设计提供参考。

Based on the finite element analysis software HyperWorks,and taking a three-wheel vehicle frame as the research object,topological optimization was carried out by taking the maximum stiffness under static multi-working conditions and the maximum dynamic vibration frequency as the objective function respectively,and two different results were obtained.In order to make the design more reasonable,this paper adopts multi-objective function to carry out topology optimization of the frame,so as to make it meet the requirements of static stiffness and modal,and verifies the rationality of this method,which lays a foundation for the multi-objective optimal design of three-wheeled vehicle frame.