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.

在超长跨度悬架桥的设计中，由于风引起的颤动振动是非常重要的问题。为了抑制它或增加发作速度，研究了主动控制技术。采用的方法是，在加强梁的两端附着的襟翼及时以襟翼产生空气动力学抑制力的方式驱动到梁的运动。人们发现，通过剧烈的颤动和俯仰动作来抑制悬浮桥的颤动。对悬架桥的弹力控制的跨度为3000 m。襟翼的宽度是甲板宽度的四分之一。没有控制的扑动速度为39米/s。具有合适相位和振幅的襟翼运动可以抑制扑动。讨论了控制系统的可靠性。将系统跨度分为小型系统将故障安全系统属性；襟翼，驾驶系统和风力发电机组成每个。

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 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。

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。

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）。