Abstract: Wheel hub is one of the main components of a car, and its lightweight design can reduce the overall weight of the car, thereby improving its fuel economy. Therefore, based on the Workbench platform, this article optimized the topology of car wheels and reconstructed the wheel hub model according to the topology results, ultimately reducing the wheel hub weight from 7.142 82 kg to 5.789 kg. Static and modal analyses are conducted on the optimized wheel hub model under high-speed rotation, radial load, bending load, and combined working conditions. The results show that the optimized wheel hub meets the practical needs of multiple working conditions and can effectively avoid resonance, providing a theoretical basis for the lightweighting of automotive wheel hubs.

Key words: wheel hub; lightweight; topology optimization; mechanical analysis; modal analysis

摘要： 轮毂是汽车的主要组成部分之一，它的轻量化设计可以降低汽车整车重量、从而提高 汽车燃油经济性。故文章基于 Workbench 平台，对轿车轮毂进行了拓扑优化，依据拓扑结果 重构了轮毂模型，最终将轮毂重量从 7.142 82 kg 降至 5.789 kg。针对优化后的轮毂模型进行 了高速旋转、径向载荷、弯曲载荷以及联合工况下的力学分析与模态分析，结果表明优化后 的轮毂满足多工况的实际需求，能有效避开共振，为汽车轮毂轻量化提供了理论基础。

关键词: 轮毂；轻量化；拓扑优化；力学分析；模态分析