基于Workbench的车用转向节臂拓扑优化设计

Workbench-Based Topology Optimization Design for Automotive Steering Arms

摘要: 在保证汽车行驶安全的前提下，克服汽车行驶过程中的冲击和振动，实现轻量化，对转向节臂进行模态分析和拓扑优化。通过UG对转向节臂建模，导入Workbench中进行模态分析和拓扑分析。利用有限元分析法对转向节臂进行模态分析，了解各阶固有频率和振型特点，得出动态特性，为优化设计中的研究分析结构动力特性提供依据。通过Workbench拓扑优化模块建立转向节臂优化模型，分析比较优化前后转向节臂的最大应力和最大位移，在符合使用要求的前提下，得出减重比达48.18%的转向节臂模型，对后续轻量化设计工作有指导作用。

Abstract: Under the premise of ensuring the safety of automobile driving, overcoming the impact and vibra-tion during the driving process of the car, realizing lightweight, and carrying out modal analysis and topology optimization of the steering joint arm. Through UG modeling the steering arm, it is im-ported into Workbench for modal analysis and topological analysis. The finite element analysis method is used to carry out modal analysis of the steering joint arm, understand the natural fre-quency and mode characteristics of each order, and obtain the dynamic characteristics, which pro-vides a basis for the study and analysis of the dynamic characteristics of the structure in the opti-mization design. The steering joint arm optimization model is established through the Workbench topological optimization module, and the maximum stress and maximum displacement of the steering joint arm before and after optimization are analyzed and compared. Under the premise of meeting the requirements for use, a steering joint arm model with a weight loss ratio of 48.18% is obtained, which can guide the subsequent lightweight design work.