Aerodynamic Active Control of Wind Induced Vibration of a Long Span Bridge

大跨桥梁风振气动主动控制

• 批准号: 09650537
• 负责人: KOBAYASHI Hiroshi
• 金额: $ 1.28万
• 依托单位: Ritsumeikan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650537/
• 关键词: suspension bridge; flutter; active; control; flap; アクティブコントロール

In the design of super long span suspension bridge, flutter vibration due to wind is very important problem. For suppressing it or increasing the onset velocity an active control technology is investigated. The employed method is that flaps attached at the both ends of stiffening girder are driven in time to the motion of the girder in the manner that the flaps produce the aerodynamic suppressing force. It was found that flutter of a suspension bridge could be suppressed by the feedback control by heaving and pitching motions of flutter.Flutter control of a suspension bridge have a span of 3000 m was discussed. The width of flaps is a quarter of the deck width. Flutter speed without control was 39-m/s. Flap motion with suitable phase and amplitude could suppress the flutter. Reliability of the control system was discussed. Dividing the system spanwisely into small systems attributes a failsafe system ; flaps, driving system and wind power generator compose each of them.

在超大跨度悬索桥的设计中，风振是一个非常重要的问题。为了抑制它或提高起始速度，研究了主动控制技术。所采用的方法是在加劲梁的两端安装襟翼，使襟翼产生气动抑制力，并随加劲梁的运动而运动。通过对悬索桥颤振的垂荡和纵摇运动进行反馈控制，发现通过反馈控制可以抑制悬索桥的颤振，并讨论了一座跨度为3000 m的悬索桥的颤振控制。襟翼的宽度是甲板宽度的四分之一。无控制的颤振速度为39 m/s。适当的襟翼运动相位和幅值可以抑制颤振。讨论了控制系统的可靠性。将系统按展向划分为若干小系统，每个小系统由襟翼、驱动系统和风力发电机组成。

项目成果

H.Kobayashi, R.Ogawa: "Active Flutter Control of a Bridge Deck by Ailerons" 2nd.World Conf.on Structural Control. (発売予定). (1998)

H.Kobayashi、R.Okawa：“副翼对桥面的主动颤振控制”第二届世界结构控制大会（即将发布）。

S.Taniguchi, R.Ogawa and H.Kobayashi: "Active Control of Flutter by Airelon"Ann. conf. of JSCE. I-B. 148-149 (1997)

S.Taniguchi、R​​.Okawa 和 H.Kobayashi：“Airelon 对颤振的主动控制”Ann。

H.Kobayashi, R.Ogawa and S.Taniguchi: "Active Flutter Contorol of Bridg Deck by Ailerons"Proc of the Second World Conf.on STRUCTURL CONTROL. 3. 1843-1848 (1798)

H.Kobayashi、R.Okawa 和 S.Taniguchi：“Ailerons 的桥面主动颤振控制”第二届世界 STRUCTURL CONTROL 会议的会议记录。

H.Kobayashi, R.Ogawa and S.Taniguchi: "Active Flutter Control of a Bridg Deck by Ailerons" Prec. of the Second World Conf. on STRUCTURAL CONTROL. 3. 1843-1848 (1998)

H.Kobayashi、R.Okawa 和 S.Taniguchi：“副翼对桥面板的主动颤振控制”Prec。

谷口、小川、小林: "補助翼によるフラッターのアクティブコントロール"土木学会第52回年次学術講演会. I-B. 148-149 (1997)

Taniguchi、Okawa、Kobayashi：“使用副翼的颤振主动控制”第 52 届日本土木工程师学会学术年会 I-B 148-149（1997 年）。