Nihon University
Ohmoto Gumi, Co. Ltd.
Nihon University
出版者
宇宙航空研究開発機構(JAXA)
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: Proceedings of the First International Symposium on Flutter and its Application
巻
JAXA-SP-16-008E
ページ
385 - 392
発行年
2017-03-15
会議概要（会議名, 開催地, 会期, 主催者等）（英）
First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan
抄録（英）
There have been various attempts and investigations to capture wind energy through wind-induced vibration of some kind of structural elements. The wake galloping is one of the candidates due to its divergent nature, and the wake galloping of a single circular cylinder has been investigated in a couple of studies. However, if multiple cylinders can vibrate simultaneously, it would be favorable to capture more wind energy through the vibration. Based on this idea, a basic wind tunnel experiment has been conducted in the present study. In the present experiment, in the wake of a fixed circular cylinder, multiple circular cylinders of the same diameter as the fixed one are supported by coil springs and deployed in tandem alignment. The numbers of spring-supported cylinders are changed from 1 to 3, and the distance between their centers is another experimental parameter. As the results, two cylinders or even three cylinders vibrate together. It is worth to note that, in case that the distance between their centers is double of the cylinder diameter, the two or three cylinders vibrate in bigger amplitude than other wider distance cases though the single cylinder does not reveal wake galloping in such narrow spacing.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
Vibration of multiple circular cylinders in tandem alignment
AA1630046040.pdf
(751.23KB)
