电动物流车车厢结构设计仿真分析  

Simulation Analysis of Structural Design of Electric Logistics Carriage

作　　者：蔡甫 郝琪[1] 李海伦 郭光美 CAI Fu;HAO Qi;LI Hailun;GUO Guangmei(Hubei University of Automotive Technology,Shiyan Hubei 442002,China)

机构地区：[1]湖北汽车工业学院,湖北十堰442002

出　　处：《重庆科技学院学报（自然科学版）》2018年第2期95-98,111,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：湖北省自然科学基金项目"含碰撞性能新能源汽车车身轻量化"(2013CFA092);湖北省重点实验室创新基金项目"碰撞性能对纯电汽车车身设计的影响研究"(2015XTZX0418)

摘　　要：在某型号电动物流运输车设计中,以铝合金轻质材料取代钢材用于车厢骨架结构。根据汽车结构和行驶环境,建立满载、弯扭、加速、转弯、紧急制动共5种典型工况的边界条件,进行静态性能仿真和基本振动特性模态分析。在确定危险工况的基础上,利用尺寸优化实现车厢的轻量化设计,达到车厢减重12%的轻量化设计目标。进一步采用拓扑优化的方法改变车厢底骨架布置结构,获得了一种新型的满足刚度、轻量化要求的骨架结构分布方式。In the design of an electric logistics truck,aluminum alloy lightweight material replaces the steel in car frame structure.Then,the boundary conditions of 5 typical working conditions are determined,including full-load,twist,acceleration,turning and brake,according to the structure characteristics of automobile and the driving environment.After determining the dangerous conditions,the size optimization method is used to reduce the weight of the carriages to implement the carriage weight loss of 12%lightweight design requirement.The topology optimization method is adopted to change the original structure of the bottom frame to obtain the optimum distribution of structure,which satisfying the stiffness and lightweight requirements.

关 键 词：车厢 轻量化 尺寸优化 拓扑优化 

分 类 号：U270[机械工程—车辆工程]