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Large amplitude aerodynamic vibration of rectangular cylinder with a side ratio of two
https://jaxa.repo.nii.ac.jp/records/3457
https://jaxa.repo.nii.ac.jp/records/3457b2ab5e6f-e7d8-46dd-9c82-b9474b78fbdb
名前 / ファイル | ライセンス | アクション |
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AA1630046064.pdf (783.4 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2017-05-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Large amplitude aerodynamic vibration of rectangular cylinder with a side ratio of two | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | coupled vibration | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | galloping | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | torsional flutter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | quasi-steady aerodynamic force | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
八木, 知己
× 八木, 知己× 松宮, 央登× 濱野, 真彰× 佐々木, 雄多× 西原, 崇× Yagi, Tomomi× Matsumiya, Hisato× Hamano, Masaaki× Sasaki, Yuta× Nishihara, Takashi |
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著者所属 | ||||||
京都大学 | ||||||
著者所属 | ||||||
電力中央研究所 | ||||||
著者所属 | ||||||
京都大学 | ||||||
著者所属 | ||||||
京都大学 | ||||||
著者所属 | ||||||
電力中央研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Central Research Institute of Electric Power Industry | ||||||
著者所属(英) | ||||||
en | ||||||
Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Kyoto University | ||||||
著者所属(英) | ||||||
en | ||||||
Central Research Institute of Electric Power Industry | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Proceedings of the First International Symposium on Flutter and its Application 巻 JAXA-SP-16-008E, p. 601-609, 発行日 2017-03-15 |
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会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | In general, flutter instabilities of bluff bodies are investigated in the very small amplitude region. The main interests of engineers are to know whether the instabilities appear or not, and to evaluate their onset wind velocities. Therefore, the behaviors of self-induced vibrations at the large amplitude region still remain unexplained. It can be supposed that the amplitudes of so-called divergent type vibrations do not continue increasing all the time, even the structures allow to vibrate. Then, in this study, a rectangular cylinder with a side ratio of two is used to investigate its large amplitude vibrations under three DOF condition with various angles of attack. It is well known that this cylinder shows single DOF flutters, such as the galloping and the torsional flutter at the angle of attack 0 degree. Then, the appearance of aerodynamic interferences between these vibrations is expected in three DOF condition. However, to avoid the interference with Karman vortices, the wind tunnel tests were conducted at comparatively high reduced wind velocity region. To obtain the large amplitudes in the wind tunnel, the model was mounted by an elastic support system, which is used for the models of overhead transmission lines. Then, the various kinds of self-induced vibration with large amplitudes were observed, e.g. vertical 1DOF dominant vibration, torsional 1DOF dominant vibration, coupled 3DOF vibration and so on. It depends on the angle of attack and the initial condition which phenomenon occurs. To understand these complicated responses, the time history analyses using quasi-steady aerodynamic forces are tried. Also, the aerodynamic force, which has in-phase component to torsional velocity, is added to the quasi-steady formulation virtually. Then, the most of large amplitude vibrations can be explained by using the quasi-steady aerodynamic forces and/or the aerodynamic force attributable to torsional velocity. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA1630046064 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-16-008E |