Lightweight Design of Electric Vehicle Battery Box
[Purposes]Taking the battery box of an electric vehicle as the research object,the lightweight design of the battery box was carried out.[Methods]Starting from the perspective of material lightweight,different metal materials were selected.Combined with finite element analysis,CAE simulation analysis technology was used to establish a finite element model of the battery box.Then,static characteristic analysis and modal analysis were conducted on the battery box under four typical working conditions.[Findings]Static characteristic analysis was conducted on the finite element model of the lower body of the battery box,and stress and deformation diagrams of the lower body of the battery box under three dif-ferent materials were obtained and analyzed accordingly;the first 6 constrained modes of the battery box under three different materials were analyzed,and the corresponding characteristic frequencies were ob-tained.[Conclusions]By analyzing the static and modal characteristics of different materials of battery boxes obtained through simulation,the overall performance of various materials of battery boxes under the box was evaluated and compared.After considering their economic applicability,aluminum alloy was ultimately chosen as the lightweight material for the battery box under the box.
electric vehiclebattery boxmaterial lightweight designCAE
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