散热孔不同排列方式的电池箱有限元模态分析  

Finite Element Modal Analysis of Battery Box with Different Arrangements of Heat Dissipation Holes

作　　者：解占新[1] XIE Zhan-xin(Department of Mechanical Engineering,Jinzhong University,Jinzhong 030619,China)

机构地区：[1]晋中学院机械系,山西晋中030619

出　　处：《机械工程与自动化》2022年第1期69-71,共3页Mechanical Engineering & Automation

基　　金：山西省高等学校科技创新项目(2020L0608)。

摘　　要：为保证电动汽车电池的安全性及散热效果,设计出两种不同排列方式散热孔的电池箱。为对比两种不同排列方式散热孔电池箱的差异,通过ANSYS对电池箱进行强度及刚度分析,在结构满足强度及刚度要求的基础上,对电池箱进行模态分析。分析结果表明:竖孔及横孔箱体第1阶固有频率均高于路面不平整所引发的振动频率,避免了共振的发生,但横孔箱体固有频率整体高于竖孔箱体固有频率,可以更好避免共振的发生,因此,优先选择散热孔排列方式为横孔设计结构的箱体。In order to ensure the safety and heat dissipation effect of the battery for the electric vehicle, two battery boxes with different arrangement of heat dissipation holes were designed. In order to compare the differences between the two battery boxes with heat dissipation holes, firstly, the strength and stiffness of the battery boxes were analyzed by ANSYS. On the basis that the structure met the strength and stiffness requirements, the modal analysis of the battery boxes were carried out. The results showed that the first-order natural frequencies of the vertical hole and horizontal hole boxes were higher than the vibration frequency caused by the uneven road surface, so as to avoid the occurrence of vibration.However, the natural frequency of the horizontal hole box was higher than the natural frequency of the vertical hole box as a whole, which can better avoid the occurrence of vibration.Therefore, the box with the horizontal hole design structure was preferred.

关 键 词：散热孔 排列方式 有限元 模态分析 电池箱 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术] U469.72[自动化与计算机技术—计算机科学与技术]