随着新能源汽车市场的日益发展,汽车转向系统的需求不断增加.转向万向节的优化设计对转向系统整体的安全性、舒适性和环保性等有重要现实意义.以某新能源小型汽车转向万向节为研究对象,利用SoildWorks软件构建三维模型,将模型导入ANSYS有限元软件中进行拓扑优化设计.与初始模型相比,在保证载荷与约束不变的情况下,优化后的模型质量减少了 40%.对比了优化前后的静力学特性以及前3 阶的模态振型,结果表明优化后对其综合影响在 10%以内,实现了转向万向节优化设计的目的.
With the increasing development of new energy vehicle market,the demand of vehicle steering system is increasing.The optimal design of the steering universal joint is of great practical significance to the overall safety,comfort and environmental protection of the steering system.Taking the steering universal joint of a new energy mini-car as the research object,a three-dimensional model was built by SoildWorks software,and the three-dimensional model was imported into ANSYS finite element software for topology optimization design.Compared with the initial model,the mass of the optimized model was reduced by 40%under the condition of keeping the load and constraints unchanged.By comparing the static characteristics before and after optimization and the modal shapes of the first three orders,it was found that the comprehensive influence of optimization was less than 10%,and the purpose of optimal design of steering universal joint was achieved.