Bionic Design Method of a Non-Uniform Lattice Structure for a Landing Footpad

被引：6
作者：
Deng, Haoyu [1 ]
Zhao, Junpeng [1 ]
Wang, Chunjie [2 ]
机构：
[1] Beihang Univ, Sch Mech Engn & Automat, Beijing 100191, Peoples R China
[2] Beihang Univ, State Key Lab Virtual Real & Syst, Beijing 100191, Peoples R China
来源：
AEROSPACE | 2022年 / 9卷 / 04期
基金：
中国国家自然科学基金;
关键词：
bionic design; lattice structure; energy absorption; impact deformation; landing footpad; ENERGY-ABSORPTION; BAMBOO; PERFORMANCE; KAGOME;
D O I：
10.3390/aerospace9040220
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Due to its excellent performance and high design freedom, the lattice structure has shown excellent capabilities and considerable potential in aerospace and other fields. Inspired by the bamboo structure, a lattice cell configuration namely BCC4IZ is designed and a lattice alternative layout is obtained. Then, a design and modeling method for non-uniform lattice structures is proposed. Four designs of the landing footpad with different kinds of lattice cells are developed. A series of dynamic explicit finite element simulations were conducted to evaluate and compare the energy absorption and capacity of resisting impact deformation performance of different designs. The results show that the combination of the bionic design and the lattice structure can effectively improve the performance of the lattice-filled footpad. This study proves the feasibility and potential of application for bionic design in lattice structure.
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页数：18
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