| Item type |
会議発表論文 / Conference Paper(1) |
| 公開日 |
2017-04-27 |
| タイトル |
|
|
タイトル |
Energy conversion mechanism of aerodynamic flutter of a box girder |
|
言語 |
en |
| 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 |
energy conversion |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
heaving vibration |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
pitching vibration |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
box girder |
| 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 |
葛, 耀君
劉, 祖軍
楊, 詠昕
Ge, Yaojun
Liu, Zujun
Yang, Yongxin
|
| 著者所属 |
|
|
|
同済大学 |
| 著者所属 |
|
|
|
華北水利水電大学 |
| 著者所属 |
|
|
|
同済大学 |
| 著者所属（英） |
|
|
|
en |
|
|
Tongji University |
| 著者所属（英） |
|
|
|
en |
|
|
North China University of Water Resources and Electric Power |
| 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. 267-277,
発行日 2017-03-15
|
| 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 |
Based on the flutter control equations with two degrees of freedom, including heaving and pitching vibration, the energy control equations of flutter oscillation were firstly derived. In order to solve the coupled energy equations of heaving degree and pitching degree, the step-by-step method was adopted to find out two decoupled solutions. Then, the calculation formulas of aerodynamic energy in these two degrees were achieved, and the criterion of flutter instability was derived due to system energy change rate. Through the wind tunnel testing with the sectional model of a box girder, the energy conversion rule of the heaving and pitching vibration was studied, and the transmission and feedback mechanism of airflow energy distributed on these two degrees was analyzed. The mechanism of coupled flutter of a box girder was finally described by energy input and output through the heaving and pitching degrees of freedom with the phase difference. It can be concluded that aerodynamic flutter is controlled by the energy conversion in the pitching degree of freedom, including three components, aerodynamic force, aerodynamic damping and aerodynamic stiffness. With the increase of oscillation time or cycles, the energy input from aerodynamic force will increase, and the energy output through aerodynamic damping will also increase, while the energy output through aerodynamic stiffness will change slightly and periodically. |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
形態: 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 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: AA1630046027 |
| 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 |
AA1630046027.pdf (574.2 kB)
