全铝车身纯电动客车电池架轻量化研究  

Research on Lightweighting of Battery Rack of All-aluminum Body for Pure Electric Bus

作　　者：李晴 何锋[1] 蒋雪生 陈海 Li Qing;He Feng;Jiang Xuesheng;Chen Hai(School of Mechanical Engineering,Guizhou University,Guiyang City,Guizhou Province 550025,China;Guizhou Changjiang River Co.,Ltd.,Guiyang City,Guizhou Province 550025,China)

机构地区：[1]贵州大学机械工程学院,贵州省贵阳市550025 [2]贵州长江有限公司,贵州省贵阳市550025

出　　处：《农业装备与车辆工程》2022年第12期43-45,50,共4页Agricultural Equipment & Vehicle Engineering

基　　金：贵州省科技计划项目“全铝车身纯电动客车关键技术研究”(黔科合支撑[2019]2158号)。

摘　　要：由于全铝车身纯电动客车装载电池包质量大,导致电池架结构笨重,因此需要对其进行轻量化设计。以全铝车身纯电动客车电池架为研究对象,进行有限元分析,得到电池架刚强度性能及模态频率;利用Opti Struct对电池架拓扑优化,依据优化结果重新设计电池架;对优化前后的电池架进行对比分析验证。结果表明,经拓扑优化后的电池架质量明显减小,避免了共振现象的产生,最大位移和最大应力相对优化前有所减少。Due to the heavy load of battery pack in all-aluminum pure electric bus,the structure of battery rack is heavy,so it needs to be lightweight designed.Taking the battery rack of all-aluminum pure electric bus as the research object,finite element analysis was carried out to obtain the rigidity strength performance and modal frequency of the battery rack.The topology of the battery rack was optimized by OptiStruct,and the battery rack was redesigned according to the optimization results.The battery rack before and after optimization was compared and verified.The results show that the weight of the battery rack is obviously reduced,the resonance phenomenon is avoided,and the maximum displacement and maximum stress are reduced compared with that before the optimization.

关 键 词：电池架 轻量化 有限元分析 拓扑优化 

分 类 号：U469.72[机械工程—车辆工程] U463.6[交通运输工程—载运工具运用工程]