Practical Application of Hybrid Mass Damper System for Traffic-Induced Vibration Highway Bridges

混合质量阻尼器系统在交通振动公路桥梁中的实际应用

• 批准号: 04555110
• 负责人: KAWATANI Mitsuo
• 金额: $ 2.11万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555110/
• 关键词: Vibration Control; Highway Bridge; Traffic-Induced Vibration; Hybrid Control System; Model Test; Dynamic Reaction Force

Experimental results of dynamic response of highway bridges under a moving test vehicle show that frequency of girder's response increases with increasing of velocity of the test vehicle. Such dynamic response has transient properties, that is, amplitude and frequency change due to traveling of vehicle on bridges. It is difficult that this kind of traffic-induced vibration is controlled by TMD (Tuned Mass Damper) of passive type. In this study, hybrid control system combining merits of passive type and active type is developed. Natural frequency of a springmass system is adjusted to the first natural frequency of a model bridge. The mass is controlled by AC servomotor to follow the response of the bridge, which is measured by a accelerometer.Dynamic tests of a model girder are carried out to show the effectiveness of the hybrid control system compared with a control by TMD.A model vehicle is made of four wheels, and moved at a constant speed by a inverter controlled AC motor. The natural frequency of the model vehicle is about 3Hz, that is adjusted to the first natural frequency of the model girder. In another case the natural frequency of the vehicle is about 4Hz. Dynamic response of the girder is estimated in terms of r.m.s. (root mean square) of a displacement and an acceleration at the span center and reaction forces at supports. Dynamic reaction forces are examined here in respect to environmental dynamic effects to nearby ground and buildings from the traffic-induced vibration of bridges. Values of r.m.s are more reduced by the hybrid control system compared with TMD.The reduced rates for the displacement are larger than those for the acceleration or the reaction forces.

公路桥梁在行驶试验车作用下的动力响应试验结果表明，主梁的响应频率随试验车车速的增大而增大。这种动力响应具有暂态特性，即车辆在桥梁上行驶引起的幅值和频率的变化。这种交通诱导的振动很难用被动型调谐质量阻尼器(TMD)来控制。本研究结合了被动型和主动型的优点，提出了一种混合控制系统。将弹簧质量系统的固有频率调整为模型桥梁的第一固有频率。模型车由交流伺服电机控制，跟踪桥梁的响应，通过加速度计测量桥梁的响应。通过模型梁的动态试验，验证了混合控制系统与TMD控制的有效性。模型车的固有频率约为3赫兹，调整为模型梁的第一阶固有频率。在另一种情况下，车辆的固有频率约为4赫兹。主梁的动力响应按RMS值进行估算。(均方根)跨中心的位移和加速度以及支座上的反力。本文研究了交通诱导的桥梁振动对附近地面和建筑物的环境动力影响的动力反力。与TMD相比，混合控制系统的R.M.S值有更大的降低，位移的减小率大于加速度或反力的减小率。

项目成果

Kawatani,M.,Nishiyama,S and Mori,A.: "Model Tests of Hybrid Control System for Bridge Vibration under Moving Vehicles" Theoretical and Applied Mechanics University of Tokyo Press. 41. 21-27 (1992)

Kawatani,M.、Nishiyama,S 和 Mori,A.：“移动车辆下桥梁振动混合控制系统的模型试验”东京理论与应用力学大学出版社。

川谷充郎: "交通振動制御の可能性-III.アクティブコントロール,その他-" 第2回振動制御コロキウム PART A 構造物の振動制御(2). 203-210 (1993)

Mitsuro Kawatani：“交通振动控制的可能性 - III.主动控制等”第二届振动控制研讨会 PART A 结构振动控制 (2) (1993)。

Kawatani, M.: "Possibility of Control of Traffic-Induced Vibration ; III.Active Control and So Forth" 2nd Colloquium on Vibration Control of Structures, PART A,Vibration Control of Structures (2). 203-210 (1993)

Kawatani, M.：“控制交通引起的振动的可能性；III.主动控制等”第二届结构振动控制研讨会，A 部分，结构振动控制 (2)。

Kawatani,M.,Nishiyama,S and Mori,A.: "Hybrid Control System for Bridge Vibration under Moving Vehicles" Proc.1st International Conference on Metion and Vibration Control. 44-49 (1992)

Kawatani,M.、Nishiyama,S 和 Mori,A.：“移动车辆下桥梁振动的混合控制系统”Proc.第一届国际振动与振动控制会议。

Kawatani,M.,Nishiyama,S.and Mori,A.: "Model Tests of Hybrid Control System for Bridge Vibration under Moving Vehicles" Theoretical and Applied Mechanics University of Tokyo Press. 41. 21-27 (1992)

川谷，M.，西山，S.和森，A.：“移动车辆下桥梁振动混合控制系统的模型试验”东京大学理论与应用力学出版社。