混合动力汽车电池箱结构安全性分析及优化  

Structural Safety Analysis and Optimization of Battery Pack for a Hybrid Electric Vehicle

作　　者：胡艺凤 杜常清 武冬梅[1,2] 杨相军 刘华[4] HU Yi-feng;DU Chang-qing;WU Dong-mei;YANG Xiang-jun;LIU Hua(Hubei Key Laboratory of Advanced Technology for AutomotiveComponents(Wuhan University of Technology),Wuhan 430070,China;HubeiResearch Center for New Energy&Intelligent Connected Vehicle,(Wuhan University of Technology),Wuhan 430070,China;Hubei Academy of Spaceflight Technology Special Vehicle Technology Center,Wuhan 430040,China;Changan Auto Global R&D Center,Chongqing 401120,China)

机构地区：[1]现代汽车零部件技术湖北省重点实验室(武汉理工大学),武汉430070 [2]新能源与智能网联汽车湖北省工程技术研究中心(武汉理工大学),武汉430070 [3]湖北航天技术研究院特种车辆技术中心,武汉430040 [4]重庆长安汽车研究总院NVH中心,重庆401120

出　　处：《武汉理工大学学报》2021年第8期91-96,共6页Journal of Wuhan University of Technology

基　　金：湖北省重点研发计划项目(2020BAB132);武汉市技术创新项目(2019010702011323);教育部创新团队发展计划(IRT_17R83)

摘　　要：混合动力汽车动力电池箱的结构安全性对整车安全可靠性至关重要。为了满足电池箱在工作过程中的安全性和可靠性要求,以某款混合动力汽车的电池箱为例,利用有限元分析方法对电池箱在典型汽车行驶工况下的静力学特性进行了仿真;根据国家标准GB/T31476.3—2015中的电池箱安全性测试方法,进行模拟碰撞仿真;为了验证汽车行驶过程中电池箱是否会产生共振,对电池箱进行模态分析。得出电池箱不会出现破损失效,但有可能产生共振的结果。根据以上分析的结果,对电池箱盖进行了结构优化和验证,使其在满足结构强度的条件下,具有良好抗震性能。The structural safety of the power battery pack of hybrid electric vehicles is quite important to the safety and reliability of the whole vehicle.In order to meet the safety and reliability of the battery pack in the working process,based on a battery pack of a hybrid electric vehicle,the static characteristics of the battery pack under various typical vehicle driving conditions were simulated and analyzed using the finite element analysis method.According to the battery pack safety test method in the national standard GB/T 31476.3—2015,a collision simulation was carried out.To verify whether the battery pack would resonate during the vehicle driving process,the modal analysis was carried out.It is concluded that the battery box will not be damaged,but it may produce sympathetic vibration.On the basis of the above analysis results,the upper cover of the battery pack was optimized and verified.The optimized battery pack has good seismic performance under the condition of meeting the structural strength.

关 键 词：电池箱 结构安全 力学分析 模态分析 拓扑优化 

分 类 号：U469.72[机械工程—车辆工程]