Origami multi-layer space shield for cylindrical space structure  

作　　者：Ji-Hun CHA Ji-Sub NOH Sarath Kumar SATHISH KUMAR Dohyeon JIN Dae-Young LEE Chun-Gon KIM 

机构地区：[1]Department of Aerospace Engineering,Chosun University,Gwangju 61452,Republic of Korea [2]Department of Aerospace and Software Engineering,Gyeongsang National University,Gyeongsangnam-do 52828,Republic of Korea [3]Department of Aerospace Engineering,Seoul National University,Seoul 08826,Republic of Korea [4]Department of Aerospace Engineering,KAIST,Daejeon 34141,Republic of Korea

出　　处：《Chinese Journal of Aeronautics》2024年第10期294-312,共19页中国航空学报（英文版）

基　　金：Supported by the National Research Foundation of South Korea(No.NRF-2021R1A4A1032783);the National Research Foundation of Korea(NRF),the Korea government(MSIT)(No.2022R1C1C1003718).

摘　　要：The multidisciplinary space environment,encompassing orbital debris,cosmic radiation,and solar radiative heat,poses significant risks to spacecraft and astronauts,necessitating efficient and effective shielding solutions.A multi-layer shield with wide spacing has been proven to be an effective way to shield the spacecraft from space debris impact;however,due to the limited volume of the payload fairing,it was not feasible to apply a multi-layer shield to the spacecraft fuselage.Through the origami design,the shield maintains a compact form during launch and subsequently expands in outer space to enhance protection.Through geometric analysis,it has been confirmed that the deployable multi-layer space shield can occupy less space than conventional space shield structures while expanding into wider shield intervals and multiple layers.Through hypervelocity impact experiments,it was confirmed that as the bumper spacing of the multi-layer space shield expands,its ballistic performance becomes superior to conventional space structures.The deployable multi-layer space shield can reduce not only hypervelocity impacts but also solar radiative heat using the same mechanism as multi-layer insulation.Through cosmic radiation dose analysis,it has been confirmed that the multi-layer space shield is effective in cosmic radiation shielding compared to conventional space structures.

关 键 词：Hybrid composite ORIGAMI Hypervelocity impact Space environment Space debris Cosmic radiation 

分 类 号：V414.8[航空宇航科学与技术—航空宇航推进理论与工程]