Performance Evaluation of Inerter-Based Dampers for Bridge Flutter Control: A Comparative Study
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Published:2023-07-05
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Volume:
Page:
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ISSN:0219-4554
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Container-title:International Journal of Structural Stability and Dynamics
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language:en
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Short-container-title:Int. J. Str. Stab. Dyn.
Author:
Feng Zhouquan12,
Jing Haokun1ORCID,
Wu Qiangqiang1,
Li Yashuai3,
Hua Xugang1
Affiliation:
1. Key Laboratory for Wind and Bridge Engineering of Hunan Province, College of Civil Engineering Hunan University, Changsha 410082, P. R. China
2. Research Institute of Hunan University in Chongqing, Chongqing 401133, P. R. China
3. School of Economics and Management, Beihang University, Beijing 100191, P. R. China
Abstract
As the number of long-span bridges continues to grow, wind-induced vibration issues have become increasingly intensified. Among them, flutter is a serious wind-induced vibration that can lead to bridge collapse. To address this problem, this paper proposes inerter-based dampers as a solution for flutter control and compares their performance to traditional tuned mass dampers (TMDs). Firstly, eight distinct inerter-based dampers were proposed, based on various combinations of mass-inerter-spring-damper (MISD) components. Secondly, the equations of motion of the bridge-MISD system were derived based on the two-mode coupled flutter theory and the mechanical impedance analysis method. Thirdly, the flutter control performance of the eight proposed MISDs is examined using a simply supported beam, with the six better-performing dampers further evaluated using the Jiangyin Bridge. The results show that inerter-based dampers can effectively improve the critical flutter wind speed of bridges, with performance sensitive to frequency. Additionally, incorporating an inerter decreases the static displacement of the mass block, while increasing the mass of MISD and the distance between the damper and the section center improves flutter control performance. The optimal spring stiffness ratios for the six MISDs are identified, largely dependent on the damper’s inertance and mass. In conclusion, this paper offers a promising solution to addressing flutter in long-span bridges and provides insights into the design and optimization of inerter-based dampers.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Chongqing
the Open Research Project Programme of the State Key Laboratory of Internet of Things for Smart Cit
Natural Science Foundation of Hunan Province
Publisher
World Scientific Pub Co Pte Ltd
Subject
Applied Mathematics,Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Building and Construction,Civil and Structural Engineering