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- FUJIWARA Michihiro
- Department of Aerospace Engineering, Tohoku University
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- TOMIZAKI Honoka
- Department of Aerospace Engineering, Tohoku University
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- HASEGAWA Sunao
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
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- OHTANI Kiyonobu
- Institute of Fluid Science, Tohoku University
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- MAKIHARA Kanjuro
- Department of Aerospace Engineering, Tohoku University Institute of Fluid Science, Tohoku University
抄録
<p>Space debris has become a great concern within the field of space development. In particular, one active debris removal method involves the use of an electrodynamic tether system that exploits the interaction between the geomagnetic flux and plasma electrons. Among the various tethers, tape-shaped tethers show superior survivability during debris removal missions. However, a concentration of stress may be generated at the edge of a damage hole caused by debris collision, resulting in crack advancement and severance of the tethers. Here, we propose an aluminum glass cloth tape (ALGC) tether, in which stress is uniformly distributed. To simulate space debris collisions with tethers, hypervelocity-impact experiments are conducted using a two-stage light-gas gun at ISAS/JAXA. First, lengths of circular or elliptical damage holes are measured and compared between two types of tethers, ALGC tethers and standard aluminum tape tethers. Next, their severance characteristics are defined in terms of tensile force. Additionally, collision simulations are conducted for aluminum tape tethers to allow a detailed comprehension of debris collisions. It is confirmed that, even in the case of two tethers with nearly equal damage dimensions, ALGC tethers outperform aluminum tape tethers in terms of tolerance to tensile force. These versatile ALGC tethers overcome the disadvantages of aluminum tape tethers and should thus exhibit high survivability against debris collisions during removal missions.</p>
収録刊行物
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- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 19 (1), 34-41, 2021
一般社団法人 日本航空宇宙学会
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詳細情報 詳細情報について
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- CRID
- 1391412881272182912
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- NII論文ID
- 130007965804
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- ISSN
- 18840485
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可