碳纤维麦弗逊悬架控制臂轻量化设计  

Lightweight Designof Macpherson Suspension Control Arm with Carbon Fiber Composite

作　　者：蔡茂[1] 高群[1] 宗志坚[1,2] 

机构地区：[1]中山大学工学院,广东广州510006 [2]中山大学研究院,广东东莞523000

出　　处：《机械设计与制造》2015年第7期189-192,共4页Machinery Design & Manufacture

基　　金：广东省科技计划项目(2011A010802003);广东省科技攻关计划(2009A011604003);东莞市重大科技专项(2011215155)

摘　　要：建立悬架动力学模型,对控制臂在冲击、转向、制动三种工况下的边界载荷进行研究,并以控制臂体积最小为优化目标,结合优化设计数学模型利用拓扑优化软件Opti Struct对碳纤维悬架控制臂进行了结构优化,获得控制臂基本形状以及材料的最优化分布。根据优化结果,对控制臂进行了结构设计,并通过有限元仿真,对各种工况下碳纤维控制臂的应力以及位移进行了研究,结果表明,通过轻量化设计的碳纤维控制臂在符合强度和刚度要求的同时,比钢结构控制臂轻45.6%。The boundary conditions of the control arm were researched in the condition of pothole,brake and corner by the suspension dynamics model. And the optimization design for control arm were performedby Opti Struct,with minimum volume of the control arm the objective function,to get the control arm basic shape and material distribution. According to the result of optimization,the structure of the control arm was designed. The finite-element-simulation was done to studythe stress and displacement of thecarbon fibercontrol armunder the conditions mentionedpreviously.Thelightweight suspension control armensures the requirements of both strength and stiffness at the same time,45.6% lighter than the steel arm.

关 键 词：碳纤维控制臂 拓扑优化 轻量化设计 OptiStruct 

分 类 号：TH16[机械工程—机械制造及自动化] U463.82[机械工程—车辆工程]