2 0 0 0 IR 弓道における弓の変形特性
- 著者
- 長坂 明彦 池田 隼人 小林 裕介 渡辺 誠一
- 雑誌
- 長野工業高等専門学校紀要 (ISSN:02861909)
- 巻号頁・発行日
- vol.44, pp.1-1, 2010-06-30
1 0 0 0 OA 鋼鉄道橋の振動発電を利用した充電手法の動態観測モニタリングへの適用
- 著者
- 吉田 善紀 小林 裕介 和田 一範
- 出版者
- 公益社団法人 土木学会
- 雑誌
- 構造工学論文集 A (ISSN:1881820X)
- 巻号頁・発行日
- vol.61A, pp.532-543, 2015 (Released:2015-05-22)
In this research, we proposed the power storage device by energy harvesting from the bridge vibration, for the monitoring system to detect the bridge and predict a tendency toward deterioration of the bridge. We made the prototype monitoring system charging system and verified the operations at the existing bridge. This prototype system demonstrated to measure displacement and temperature at fixed intervals, and the dynamic response of the bridge to passing trains by using only power generated from the bridge vibration.
- 著者
- 林 裕介 渡辺 昌宏 原 謙介
- 出版者
- 一般社団法人 日本機械学会
- 雑誌
- Dynamics & Design Conference 2010 (ISSN:24242993)
- 巻号頁・発行日
- pp._260-1_-_260-6_, 2010-09-14 (Released:2017-06-19)
This paper deals with theoretical stability analysis of an active feedback control of web flutter which occurs to the web with both ends fixed and tensioned. In this paper, a non-contact active feedback control method of web flutter by using movable plates set at inlet or outlet of the passage are developed and its analytical model is constructed. The equations of motion of the flexible sheet coupled with the fluid flow controlled by the movable plates are obtained. The characteristic equation of the system is derived as a function of the flow velocity in the narrow gap. As a result, it is shown that the web flutter occurs to the web with increasing the flow velocity, and is effectively suppressed by the proposed non-contact flow control devices and active feedback control method. Furthermore, calculation results are verified by the experiments.