主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
Automobile Applied Technology

Automobile Applied Technology ›› 2024, Vol. 49 ›› Issue (5): 59-62.DOI: 10.16638/j.cnki.1671-7988.2024.005.011

• Design and Research • Previous Articles    

Mechanical Impact Analysis of Battery Pack Based on Finite Element Simulation

DING Yuanzhang1 , DING Fusheng*2 , WU Lei1 , GAO Shuai2   

  1. 1.Yangtse Delta Academy of New Energy Automobiles Company Limited; 2.School of Automotive Engineering, Yancheng Institute of Technology
  • Published:2024-03-14
  • Contact: DING Fusheng

基于有限元仿真的电池包机械冲击分析

丁元章 1，丁福生*2，武 磊 1，高 帅 2   

  1. 1.长三角新能源汽车研究院有限公司；2.盐城工学院 汽车工程学院
  • 通讯作者: 丁福生
  • 作者简介:丁元章（1976－），男，高级工程师，研究方向为新能源汽车开发，E-mail:dingyz@gxxnyauto.com

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Abstract: Taking the battery pack of battery electric vehicles as the research object, the impact load is determined through GB 38031－2020 and perform finite element analysis. The transient response calculation of the battery pack is carried out using OptiStruct, and the results show that at 7 ms, the maximum stress at the lifting lug and bolt of the battery pack is 167.5 MPa, which is less than the material tensile strength of 270 MPa and meets the design requirements. Applying finite element analysis method for transient response analysis of battery packs in the early stages of development is beneficial for shortening the battery pack design cycle and reducing costs.

Key words: Finite element analysis; Battery pack; Mechanical impact; Transient response

摘要： 以纯电动汽车的电池包为研究对象，通过 GB 38031－2020 确定其冲击载荷，进行有限 元分析。利用 OptiStruct 对电池包进行瞬态响应计算，结果表明在 7 ms 时，电池包的吊耳及 螺栓处的最大应力为 167.5 MPa，小于材料抗拉强度 270 MPa，符合设计要求。在开发初期应 用有限元分析方法进行电池包的瞬态响应分析，有利于缩短电池包设计周期并降低成本。

关键词: 有限元分析；电池包；机械冲击；瞬态响应