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titleSPS大型パネルアンテナ面精度維持のための基礎実験
Other TitleBasic experiment of profile irregularity maintaining system for SPS large-scale panel antenna
Author(jpn)山口, 哲史; 田中, 孝治; 佐々木, 進; 小田原, 修
Author(eng)Yamaguchi, Satoshi; Tanaka, Koji; Sasaki, Susumu; Odawara, Osamu
Author Affiliation(jpn)東京工業大学大学院総合理工学研究科; 宇宙航空研究開発機構宇宙科学研究本部; 宇宙航空研究開発機構宇宙科学研究本部; 東京工業大学大学院総合理工学研究科
Author Affiliation(eng)Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
Issue Date2009-06
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構宇宙科学研究本部
Publication titleSpace Energy Symposium
宇宙エネルギーシンポジウム
Volume28
Publication date2009-06
Languagejpn
eng
AbstractA very large deployable antenna panels that consist of antenna elements, microwave circuits, control and power circuits and power generation devices is a major portion of the Solar Power Satellite (SPS). Heat cycle on the orbit will cause a distortion of the antenna panel of the SPS and result decrease of power transmission efficiency. Therefore, it is necessary to maintain the profile irregularity of the panel. On the other hand, a famous 2-D deployment method called "MIURA ORI" cannot be used for the panel because it has thickness. So, we have been studying a reliable 2-D deployment and a profile irregularity maintaining method that utilizes a smart actuator. The smart actuator consists of the shape-memory alloy (SMA) and a controller. We carried out the deployment experiment using the smart actuators. We made a four panel trial system for one dimensional experiment in order to confirm a basic function of the smart actuator. In this experiment, the profile irregularity was set the angle by +/- 5 deg. Two types of the SMA coil with open angles of 140 deg and 220 deg were processed in shape-memory treatment with heat. Fatigue property of the processed SMA was evaluated. It was confirmed that the SMA coil can be used for the panel deployment experiment. The angle control system that consists of the LED, the sensor and a control circuit were made and evaluated.
Description会議情報: 第28回宇宙エネルギーシンポジウム(2009年3月9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)
Meeting Information: The twenty-eight Space Energy Symposium (March 9, 2009. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara)
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会
NCIDAN10324356
SHI-NOAA0064295019
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/13943


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