摘要
为达到汽车轮毂轻量化目的,在汽车轮毂的概念设计阶段对汽车轮毂进行结构寻优。用拓扑优化技术作为概念设计的方法,建立基于变密度拓扑优化方法的汽车轮毂概念设计数学模型;利用ProE三维建模软件建立某汽车轮毂的三维模型和概念几何模型;使用Hypermesh前处理软件建立某汽车轮毂的概念设计有限元模型,然后引用折中规划法解决多工况问题,在Optistruct结构优化软件中建立汽车轮毂的优化模型和优化参数;利用拓扑优化技术在hyperworks软件OSSmooth模块构建了3种轮毂的创新型拓扑结构,分别将3种不同的拓扑结构导入CAD软件进行二次设计,对二次设计后的新型轮毂进行有限元分析。结果表明:在满足材料许用应力的前提下,7辐轮毂相比8辐、9辐以及原轮毂更满足要求,质量比原轮毂减小12.2%。
In order to achieve the purpose of lightweight of automobile wheel hub,the structure optimization of the wheel hub from the concept phase is carried on.The topology optimization technology is used as the method of conceptual design,and the mathematical model of conceptual design of automobile hub is established based on variable density topology optimization method;by using ProE 3 D modeling software,a 3 D model and conceptual geometry model of a certain automotive hub are established;by using Hypermesh pre-processing software,a conceptual design finite element model of a automobile hub is established,then the compromise planning method is quoted to solve the problem of multi-working conditions,and the optimization model and optimization parameters of automobile hub is established in Optistruct structure optimization software;by using topology optimization technology,three innovative topological structures of hubs are constructed in the OSSmooth module of hyperworks software,and three different topologies are introduced into CAD software for secondary design,and finite element analysis is performed on the new hubs after the secondary design.The result shows that on the premise of meeting the allowable stress of the material,the seven vice wheel hub is more meet the requirements than eight vice wheel,nine vice wheel and the original wheel,and the quality of seven vice wheel is reduced 12.2%.
作者
杨国营
Yang Guoying(Tianyuan Construction Group Co.,Ltd.,Linyi,Shandong 276002,China)
出处
《机电工程技术》
2023年第6期257-262,共6页
Mechanical & Electrical Engineering Technology
关键词
概念设计
汽车轮毂
拓扑优化
轻量化
concept design
automobile wheel hub
topology optimization
lightweight
