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 ›› 2024, Vol. 49 ›› Issue (23): 28-31.DOI: 10.16638/j.cnki.1671-7988.2024.023.006

• New Energy Vehicle • Previous Articles    

Vibration Analysis of Electric Vehicle Power Battery System Based on Finite Element Method

KANG Tingting1 , LI Yantao2 , GAO Juan1   

  1. 1.Shanghai Technical Institute of Electronics Information;2.Geely Automobile Group Company Limited
  • Published:2024-12-05
  • Contact: KANG Tingting

基于有限元法的电动汽车动力电池系统的 振动分析

康婷婷 1,李延涛 2,高娟 1   

  1. 1.上海电子信息职业技术学院;2.吉利汽车集团有限公司
  • 通讯作者: 康婷婷
  • 作者简介:康婷婷(1985-),女,硕士,工程师,研究方向为智能控制,E-mail:kangting_1@126.com

Abstract: Based on an electric vehicle battery pack development project, this paper uses finite element method to simulate and analyze the rationality of the battery pack design. Firstly, the key parameters of the battery pack are screened, and the finite element model of the battery pack is established. Then, by extracting the important modes of the battery pack, the battery pack mode simulation analysis is carried out to carry out random vibration and constant frequency vibration simulation, and the RMS stress value and Von Mises stress value of each key structural component are obtained. At the same time, a vibration test is carried out to verify the reliability of the battery system, and the rationality of the simulation method and the reliability of the battery pack structure design are demonstrated by comparing the simulation results with the vibration data, which can provide a reference for the subsequent battery pack design.

Key words: electric vehicles; battery pack; finite element analysis; simulation model; vibration test

摘要: 文章基于某电动汽车电池包开发项目,利用有限元方法对该电池包设计合理性进行仿 真和分析。首先筛选电池包关键参数,建立了电池包的有限元模型。然后通过提取电池包重 要模态,进行了电池包模态仿真分析,开展随机振动和定频振动仿真,获得了各关键结构件 的 RMS 应力值和 Von Mises 应力值。同时开展了振动试验来验证电池系统可靠性,并通过仿 真结果和振动数据的对比,说明了仿真方法的合理性和电池包结构设计的可靠性,能够为后 续电池包设计提供参考。

关键词: 电动汽车;电池包;有限元分析;仿真模型;振动试验