RANDOM VIBRATION FATIGUE ANALYSIS AND STRUCTURAL DESIGN IMPROVEMENT OF BATTERY PACK BASED ON AN VEHICLE

DAI JiangLiang; XIONG Fei; LIU Jing; CHEN Chen; CHEN Hu; YANG YueDong

doi:10.16579/j.issn.1001.9669.2021.05.037

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RANDOM VIBRATION FATIGUE ANALYSIS AND STRUCTURAL DESIGN IMPROVEMENT OF BATTERY PACK BASED ON AN VEHICLE

更新时间：2022-09-22

- RANDOM VIBRATION FATIGUE ANALYSIS AND STRUCTURAL DESIGN IMPROVEMENT OF BATTERY PACK BASED ON AN VEHICLE
- Journal of Mechanical Strength Vol. 42, Issue 5, Pages: 1266-1270(2020)
- 作者机构：
  
  1. 广州汽车集团股份有限公司汽车工程研究院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.05.037
  CLC：
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DAI JiangLiang, XIONG Fei, LIU Jing, et al. RANDOM VIBRATION FATIGUE ANALYSIS AND STRUCTURAL DESIGN IMPROVEMENT OF BATTERY PACK BASED ON AN VEHICLE. [J]. 42(5):1266-1270(2020)
DOI：

DAI JiangLiang, XIONG Fei, LIU Jing, et al. RANDOM VIBRATION FATIGUE ANALYSIS AND STRUCTURAL DESIGN IMPROVEMENT OF BATTERY PACK BASED ON AN VEHICLE. [J]. 42(5):1266-1270(2020) DOI： 10.16579/j.issn.1001.9669.2021.05.037.

摘要

基于随机振动理论与频域疲劳分析方法,利用有限元软件构建动力电池包随机振动疲劳失效分析模型并计算结构的疲劳寿命,分析结果与试验结果完全吻合。分析结构的失效机理并进行结构设计改进,试验结果表明,改进方案的疲劳寿命得到显著的提高,具有较好的抗振耐久性能。

Abstract

Based on random vibration theory and fatigue analysis method in frequency domain,with finite element software to construct the battery pack failure model of random vibration fatigue analysis and to calculate the fatigue life of the structure,the analysis results are in good agreement with the test results. Analyze the failure mechanism of the structure and carry out structural design improvement,the simulation and test results show that the fatigue life of the improvement scheme is significantly improved,and it has better anti vibration durability.

关键词

电池包随机振动PSD谱疲劳寿命设计改进

Keywords

Battery packRandom vibrationPSD spectrumFatigue lifeDesign improvement

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