机电工程技术2025，Vol.54Issue(22)：12-16,92,6.DOI:10.3969/j.issn.1009-9492.2025.22.003
汽车支架TPMS多孔结构设计及性能研究
Study on Porous Structure Design and Performance of TPMS for Automobile Bracket
摘要
Abstract
In order to obtain a lightweight and energy-saving vehicle bracket design scheme,a scheme of filling with three-period minimal curved surface(TPMS)porous structure is proposed,and the mechanical and energy absorption characteristics of TPMS curved surface porous structure are studied.Eight different types of TPMS curved surface porous structures with porosity of 50%are designed;the fused deposition technology(FDM)is used to print and form;and the static compression test of the printed automobile bracket is carried out.The results show that the mechanical properties of the gyroid(G)curved porous structure are about 2 times those of the primitive(P)curved porous structure under the same porosity and wall thickness.In addition,the mechanical properties of the structure with the unit cell size of 5 mm are about 2 times those of the structure with the unit cell size of 10 mm,and the mechanical properties of the porous structure of P-curved surface 2 exceed those of P-curved surface 1;in terms of energy absorption,the mechanical properties of the porous structure of P-curved surface 2 are better than those of P-curved surface 1;the energy absorption performance of P-curved surface 2 porous structure is better than that of P-curved surface 1,and the energy absorption performance of G-curved surface porous structure is 1.6～2.7 times that of P-curved surface,and the energy absorption properties of the two P-curved porous structures differ in the size of the unit cell.Data support for the lightweight design of TPMS porous structure is provided.关键词
三周期极小曲面/多孔结构/孔隙率/熔融沉积技术/压缩试验/吸能性能Key words
three-period minimal curved surface/porous structure/porosity/fused deposition modeling/compression test/energy absorption performance分类
信息技术与安全科学引用本文复制引用
唐锋,夏凯,王欣..汽车支架TPMS多孔结构设计及性能研究[J].机电工程技术,2025,54(22):12-16,92,6.基金项目
2023年度湖南省自然科学基金项目(2023JJ60192) （2023JJ60192）
