汽车动力总成悬置骨架的拓扑优化设计  

Topological Optimization Design for Powertrain Mount Framework of Automobiles

作　　者：胡培龙[1] 陆晓黎[1] 上官文斌[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广州510641

出　　处：《噪声与振动控制》2010年第6期83-86,100,共5页Noise and Vibration Control

摘　　要：以某商用车动力总成的悬置骨架为分析对象,基于变密度法建立拓扑优化的数学模型及其求解方法;运用有限元软件Hyperworks中的Optistruct模块将拓扑优化方法应用到该商用车动力总成的悬置骨架结构设计中,对单工况下的骨架结构进行优化设计。根据优化的结果并结合生产经验,设计出新悬置骨架的结构。最后用ABAQUS软件对悬置总成进行应力、变形和体积的计算。结果表明,经过优化的悬置骨架安全性能得到提高,重量减轻。Taking the framework of a commercial vehicle powertrain mount as an example,the mathematical model of topological optimization,based on the variable density method,is established and its solution method is provided.An optimization design for the mount framework under a single load is carried out by using Optistruct model of Hyperworks code.The mount framework is redesigned according to the results of optimization and the production experience.The stress,deformation and volume of the mount assembly are calculated by using the ABAQUS code.The results demonstrate that the optimized mount framework is safer and lighter.

关 键 词：振动与波 动力总成悬置 骨架 变密度法 拓扑优化 数学模型 有限元 

分 类 号：U463.33[机械工程—车辆工程] O241.82[交通运输工程—载运工具运用工程]