JAXA Repository / AIREX 未来へ続く、宙(そら)への英知

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Other TitleStatus of Studies on Large Strucuture Assembly of Space Solar Power Systems (SSPS)
Author(jpn)藤田, 辰人; 上土井, 大助; 佐々木, 進; 大倉, 喜男
Author(eng)Fujita, Tatsuhito; Joudoi, Daisuke; Sasaki, Susumu; Okura, Yoshio
Author Affiliation(jpn)宇宙航空研究開発機構; 宇宙航空研究開発機構; 宇宙航空研究開発機構; 宇宙技術開発
Author Affiliation(eng)Japan Aerospace Exploration Agency (JAXA); Japan Aerospace Exploration Agency (JAXA); Japan Aerospace Exploration Agency (JAXA); Space Engineering Development Co. Ltd
Issue Date2010-02
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)
Publication titleSpace Energy Symposium
Publication date2010-02
AbstractJapan Aerospace Exploration Agency (JAXA) has studied Space Solar Power Systems (SSPS) using laser and microwave beams for years since 1998. In this system, the space solar energy is converted into other optical energies in the geostationary orbit, and optical energies are transmitted to the earth without depending on day and night. Therefore, this system is expected as a means to solve energy and environmental problems in the future.Critical technologies for realizing SSPS are gathering of solar light, thermal control, phased array antenna, amplifier and generator of laser, convertor from sun light to laser and assembling of large structure. Assembling of large structure on orbit is not matured technology. It is the problem how to establish this technology.In SSPS large structure of km size must be assembled on orbit. Now we study how to assemble structure of 100m size on orbit. Various styles of large structure for SSPS were suggested until now. We try to study the feasibility of large structure of 100m size like large mirror and panel for antenna and generator in case of each structure style. We try to select the best style of large structure for SSPS.We analyze the relation between flatness of mirror and rate of gathering solar light in order to study feasible requirement of large mirror on orbit. We measured the flatness of commercial mirror and analyze distribution of illumination in the case that the mirror is exposed to the sun.This paper shows status of our studies.
DescriptionMeeting Information: The twenty-ninth Space Energy Symposium (February 26, 2010, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara)
会議情報: 第29回宇宙エネルギーシンポジウム(2010年2月26日, 宇宙航空研究開発機構宇宙科学研究本部相模原キャンパス)
形態: CD-ROM1枚
Note: One CD-ROM
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会

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