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Multi-scale experimental comparisons of aerodynamic vibrations of a suspension bridge
https://jaxa.repo.nii.ac.jp/records/3418
https://jaxa.repo.nii.ac.jp/records/3418345b2c83-110f-4f41-a57e-7a3b6b2badd6
名前 / ファイル | ライセンス | アクション |
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AA1630046025.pdf (615.4 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2017-04-27 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Multi-scale experimental comparisons of aerodynamic vibrations of a suspension bridge | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Flutter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | VIV | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Sectional Model Testing | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Aeroelastic Model Testing | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Suspension Bridge | |||||
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 |
董, 浩天
× 董, 浩天× 葛, 耀君× 楊, 詠昕× Dong, Haotian× Ge, Yaojun× Yang, Yongxin |
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著者所属 | ||||||
同済大学 | ||||||
著者所属 | ||||||
同済大学 | ||||||
著者所属 | ||||||
同済大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Tongji University | ||||||
著者所属(英) | ||||||
en | ||||||
Tongji University | ||||||
著者所属(英) | ||||||
en | ||||||
Tongji University | ||||||
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. 247-255, 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 | Multi-scale wind tunnel model tests are based on a suspension bridge crossing a sea strait in China. Currently, the scale effect of aerodynamic vibrations like flutter and vortex-induced vibration (VIV) in model test of long span bridges is generally regarded as a combination of Reynolds number effect and manufacturing accuracy. In this paper, the scale effect of flutter and VIV are carefully studied by comparisons of two sectional model tests with different scale ratios and a full-bridge aeroelastic model test. The results of flutter tests shows that, a) the difference of critical flutter wind speed between Test B and Test C is below 5%; b) the vibration mode of Test C is the first-order torsional vibration of middle span girder, which is the same as Test B predicts; c) the difference between frequencies of flutter vibration of Test B and Test C is within 5%. In general, scale effect in flutter tests is not remarkable and sectional model test has enough accuracy in the prediction of flutter. On the other hand, different VIV characteristics are witnessed in three tests. In Test A and test B, first-order torsional VIV are witnessed. Comparing Test A with Test B, Reynold number effect in VIV presents as the advancing and shortening of “lock-in” wind speed domain and decreasing of VIV amplitude with scale ratio and Reynolds number. In test C, however, coupling VIV is observed at higher lock-in wind speed. | |||||
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: AA1630046025 | |||||
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 |