南京航空航天大学学报（英文版）2023，Vol.40Issue(3)：285-292,8.DOI:10.16356/j.1005-1120.2023.03.005
基于折纸的大型空间薄膜遮阳结构设计与分析
Design and Analysis of Large Space Membrane Sunshield Structure Based on Origami
摘要
Abstract
This paper proposes a self-deploying membrane sunshield structure to satisfy the requirements of lightweight,easy unfolding with high expansion ratio,and not requiring the driving power.Four equal length tape springs are used to unfold the Kapton membrane folded with leaf-in and circumferential and the folding ratio is calculated.In order to prevent the problems of hook and damage during the unfolding process,stress and trajectories of the membrane as well as the tape spring modal distribution of the skeleton are analyzed.Finally,a test prototype completes to verify the feasibility of the designment.The results show that by applying the tape springs as the driving method,the membrane unfolding process is smooth,and the membrane will not be damaged.The maximum stress at the membrane crease is about 42.3 MPa which is lower than the allowable stress of the material and the folding ratio reaches 69.4.关键词
遮阳结构/自展开/带状弹簧/薄膜/折纸工程学/有限元法Key words
sunshield structure/self-deployable/tape spring/membrane/origami/finite element method分类
航空航天引用本文复制引用
亓灵童,孙丽崴..基于折纸的大型空间薄膜遮阳结构设计与分析[J].南京航空航天大学学报（英文版）,2023,40(3):285-292,8.基金项目
This study was supported by the Shang-hai Institute of Technical Physics,which provided all the ex-perimental equipment and experimental sites for this study. （）
