Space debris studies in Tohoku University: structures of debris removal tethers, luminescent color modulation

Material type: 文書・図像類

Author: 槙原, 幹十朗ほか

Publisher: 宇宙航空研究開発機構(JAXA)

Publication date: 2017-03-27

Material Format: Digital

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Note (General)：: 第7回スペースデブリワークショップ (2016年10月18-20日. 宇宙航空研究開発機構調布航空宇宙センター(JAXA)(CAC)), 調布市, 東京The 7th Space Debris Workshop (October 18-20, 2016. Chofu Aerospace Center...

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Material Type: 文書・図像類
Title: Space debris studies in Tohoku University: structures of debris removal tethers, luminescent color modulation
Author/Editor: 槙原, 幹十朗
Makihara, Kanjuro
Author Heading: 槙原, 幹十朗
Makihara, Kanjuro
Publication, Distribution, etc.: 宇宙航空研究開発機構(JAXA)
Publication Date: 2017-03-27
Publication Date (W3CDTF): 2017-03-27
Alternative Title: 東北大学のデブリ研究の取り組み: 除去テザーの構造, 衝突による発光色変調
Periodical title: 宇宙航空研究開発機構特別資料: 第7回スペースデブリワークショップ講演資料集 = JAXA Special Publication: Proceedings of the 7th Space Debris Workshop
No. or year of volume/issue: JAXA-SP-16-011
Volume: JAXA-SP-16-011
Pages: 375-381
ISSN (Periodical Title): ISSN : 1349-113X
Text Language Code: eng
Target Audience: 一般
Note (General): 第7回スペースデブリワークショップ (2016年10月18-20日. 宇宙航空研究開発機構調布航空宇宙センター(JAXA)(CAC)), 調布市, 東京
The 7th Space Debris Workshop (October 18-20, 2016. Chofu Aerospace Center, Japan Aerospace Exploration Agency (JAXA)(CAC)), Chofu, Tokyo, Japan
この発表では, 東北大学のデブリ研究の取り組みの一部を紹介する. まず, デブリ除去テザーの構造研究を紹介する. 図に示す中空円筒メッシュテザー（以下, 中空テザー）を提案する. 従来の中実円柱テザーと同じ質量で直径を大きくできるため, 微小デブリが衝突してもテザーは破断せず, テザーの防御性能を向上させることができる. 超高速衝突実験により, 中空テザーの性能や損傷形態を明らかにする. 円柱テザーと中空テザーの生存確率を比較し, 中空テザーの有用性を示す. 次に, 衝突による発光色変調の研究を紹介する. 宇宙機の異物衝突時に, デブリ衝突修復の為に空気漏れ穴箇所を知らせる表示システムを構築する. 急激な温度・圧力上昇をトリガーとして長時間蓄光する光化学物質を宇宙機の与圧壁内側に塗布する想定である. 現在, 衝突現象で光化学物質がどのように変化するかの実験を行っている.
Space debris studies in Tohoku University are introduced. Firstly, we talk about the use of a hollow cylindrical mesh for an electrodynamic tether to improve its survivability in space. The proposed tether is expected to be used in space missions to remove uncontrollable satellites in orbit. Although the mass of the hollow cylindrical tether is the same as that of a conventional solid and cylindrical (i.e., round) tether, it has a larger diameter, which improves its survivability. To investigate the damage to the proposed hollow cylindrical mesh tether by debris impact, hypervelocity impact experiments were performed by using a two-stage light gas gun. The experimental results confirmed the potentially increased survivability of the proposed hollow cylindrical mesh tether compared to the conventional tether. Secondly, we talk about the luminescent color modulation caused by debris impact. An air-leakage detection system for space-debris impact will be constructed with photochemical materials. We will apply the materials to the pressurized chamber, so that it becomes luminescent due to the rapid increase in temperature and pressure.
形態: カラー図版あり
Physical characteristics: Original contains color illustrations
資料番号: AA1630052030
レポート番号: JAXA-SP-16-011
Access Restrictions: 限定公開
Periodical Title (NCID): AA11984031
https://ci.nii.ac.jp/ncid/AA11984031
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ