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Development of Space Debris Protection Structure

Research Project

Project/Area Number 02044050
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research InstitutionTokyo Institute of Technology

Principal Investigator

SAWAOKA Akira  Tokyo Institute of Technology, 工業材料研究所, 教授 (40029468)

沢岡 昭 (1991)  東京工業大学, 工業材料研究所, 教授

Co-Investigator(Kenkyū-buntansha) HUDEPOHL Alfled  Technical University of Munich, 航空宇宙工学研究所, 研究員
IGENBERGS Eduard  Technical University of Munich, 航空宇宙工学研究所, 教授
TAMURA Hideki  Tokyo Institute of Technology, 工業材料研究所, 助手 (30188437)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 1991: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1990: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsDebris / Hypervelocity Impact / Protection Structure / Space Station / Impact Simulation / Bumper / プラズマ加速器 / プラズマガン / 宇宙ステ-ション / 超高速度
Research Abstract

The international space station, which will be launched in the late 1990's, is exposed to the risk from hypervelocity impact of debris and micrometeorites. Completion of the protection system from debris impact is an urgent problem. The simulator capable of acceleration of debris model over 10km/s is needed to conduct the impact study. Prof. E. Igenbergs of Technical University of Munich, who is one of this project team, is an inventor of the plasma accelerator. He succeeded 20km/s acceleration of 100mum glass beads using his new accelerator. However it is difficult to accelerate effectively 300mum or larger beads using his plasma gun. We conducted successfully acceleration of 500mum glass beads up to 15km/s by cooperation with Technical University of Munich. The value, 500mum diameter bead and 15km/s is the world record. The effective protection structure is the dual element shield structure. It is required to increase of thickness of the bumper plate and gap between main wall and bumper with increasing impact velocity. A double layer bumper plate consisted of high and low shock impedance materials were tested for reducing weight and gap distance of the protection structure. 0.5mm glass beads were used as a model of debris. The double layered bumper plates consisted of 2024 Al alloy-copper and 2024 Al-aluninum nitride ceramic were tested. It was founded that protection ability of the bumper consisted of front-aluminum alloy and rear-aluninum nitride ceramics is very high for the hypervelocity impact.

Report

(2 results)
  • 1991 Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] E.IGENBERGS: "Hypervelocity Impact Phenomena and Protection from Debris Impact to Space Structure" Proceedings of Hypervelocity Impact Symposium,Austion;USA. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H.Tamura: "Hypervelocity Impact of Microprojectiles on Layered Target Plates by Magneto-Plasma Accelerator" Report of RLEM.TIT.(1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 臼井 俊央: "微小隕石防護用二重シ-ルド構造の研究(そのIII)" 圧力技術. 30. 25-30 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] E. Igenbergs: "Hypervelocity Impact Phenomena and Protection from Debris Impact to Space Structute" Proceedings of Hypervelocity Impact Symposium, 1992, Austin, USA. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H. Tamura: "Hypervelocity Impact of Microprojectiles on Layered Target Plates by Magneto-Plasma Accelerator" Report of RLEM, TIT. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Usui: "Studies for a Dual Element Meteoroid shield Structure (3rd Report) (in Japanese)" JHPI. 30. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] H.Tamura: "Projectile Hypervelocity Impact Simulation" The Institute of Space and Astronautical Science Report SP. SP11. 21-29 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 臼井 俊央: "微小隕石防護用二重薄板シ-ルド構造の研究(そのII)" 圧力技術. 28. 71-81 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Tamura: "Microprojectile Acceleration by Plasma Accelerator" Proceedings of the American Physical Society Topical Conference,Shock Compression of Condensed Matter. 993-996 (1990)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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