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Numerical investigations to suppress thermal deformation of the large deployable reflector during earth eclipse in space
http://hdl.handle.net/2241/00149336
http://hdl.handle.net/2241/00149336d9d90707-4726-4afa-a3c8-13079315368b
名前 / ファイル | ライセンス | アクション |
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AERJ_121-1241-970 (1.5 MB)
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Item type | Journal Article(1) | |||||
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公開日 | 2017-12-15 | |||||
タイトル | ||||||
タイトル | Numerical investigations to suppress thermal deformation of the large deployable reflector during earth eclipse in space | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Shoji, Kaori
× Shoji, Kaori× Isobe, Daigoro× Usui, Motofumi |
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著者別名 |
磯部, 大吾郎
× 磯部, 大吾郎 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In space, structures encounter various severe environments, including severe thermal conditions. The signal level of the radio wave from the Large Deployable Reflector (LDR) mounted on the Engineering Test Satellite-VIII (ETS-VIII) was observed to change during an Earth eclipse. This phenomenon was assumed to be caused by the thermal deformation of the LDR. Therefore, in this study, a means to suppress the thermal deformation is proposed and demonstrated by focusing on the internal force generated at the springs used to deploy the antenna. According to the numerical results obtained from finite element analyses, the thermal deformations at all apices that support the reflectors were suppressed at a high correction rate by adjusting the coefficients of thermal expansion in the structural members and by controlling spring forces differently in four areas depending on the distances from the constraint point. | |||||
書誌情報 |
The Aeronautical journal 巻 121, 号 1241, p. 970-982, 発行日 2017-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0001-9240 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00514397 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1017/aer.2017.33 | |||||
権利 | ||||||
権利情報 | © Royal Aeronautical Society 2017 | |||||
著者版フラグ | ||||||
値 | author | |||||
出版者 | ||||||
出版者 | Cambridge University Press |