南京理工大学学报（自然科学版）2024，Vol.48Issue(4)：422-433,12.DOI:10.14177/j.cnki.32-1397n.2024.48.04.003
基于仿生獾牙分层理念的夹芯板电池箱优化设计
Optimization design of battery box with sandwich panel based on bionic badger teeth layering concept
摘要
Abstract
To improve the mechanical properties of a battery box,a novel sandwich battery box with triangle umbrella-shaped cellular structure(TUCS)and negative Poisson's ratio(NPR)is designed based on the concept of bionic badger teeth layering structure.Firstly,a gradient model of bionic badger teeth is established by imitation of macro structure of badger teeth.Then,a mechanical model of TUCS with NPR is derived.Moreover,a quasi-static compression test on a TUCS sample is executed to verify the accuracy of the mechanical model and finite element simulation model.Finally,optimization design of thickness,shape,and topology for the sandwich battery box is carried out based on the modal and static results of the battery box,and the overall performances of the optimized battery box are effectively enhanced under static working conditions.Besides,the weight of the optimized battery box decreases by 56.4%.Subsequently,the impact,extrusion and drop analyses of the optimized battery box are proceeded,and the results indicate that the displacement and stress of the optimized battery box satisfy safety requirements under corresponding working conditions and the novel battery box is possessed of favorable strength and deformation resistance performances.关键词
仿生理念/三角形伞状微结构/负泊松比/电池箱/力学性能Key words
bionic concept/triangle umbrella-shaped cellular structure/negative Poisson's ratio/battery box/mechanical property分类
交通工程引用本文复制引用
郝纪波,赵颖,李云伍,周科名..基于仿生獾牙分层理念的夹芯板电池箱优化设计[J].南京理工大学学报（自然科学版）,2024,48(4):422-433,12.基金项目
国家自然科学基金(52202451) （52202451）
中国科协青年人才托举工程项目(2021QNRC001) （2021QNRC001）
