Preliminary Numerical Study on TRID System for Flutter Vibration Control of Bridge Structure
Preliminary Numerical Study on TRID System for Flutter Vibration Control of Bridge Structure
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DOI：
10.1016/j.proeng.2011.07.352
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Chunwei Zhang;Jing Li;Hui Li;J. Ou
中科院分区：
文献类型：
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作者：
Chunwei Zhang;Jing Li;Hui Li;J. Ou
基于新近提出的新型调谐旋转惯性阻尼器（TRID）控制系统，探讨了其在大跨度桥梁结构风振控制中的应用可能性。首先，综述了桥梁结构风振控制的研究背景和现有方法。然后，基于经典拉格朗日原理建立了桥段模型的运动方程，并采用基于Scanlan和状态空间的方法求解了虎门大桥颤振的临界风速。此外，将TRID控制系统纳入系统模型，其中TRID惯性质量可以在连续桥面段的连接之间物理安装。通过数值方法分析了TRID控制系统的最优参数，即调谐频率比、阻尼比和旋转惯量比，以及它们之间的相互作用。通过深入的数值分析，结果表明，TRID控制系统对于提高大跨度桥梁结构颤振稳定性是可行和有效的，如图所示的极限临界风速可提高10%，而桥梁结构的旋转惯量则增加5%。
Based on the recently proposed innovative Tuned Rotary Inertia Damper (abbreviated as TRID) control system, the possibility of its application for the wind induced flutter vibration control of long span bridge structure is discussed in this paper. Firstly, the background and current methods for wind induced flutter vibration control of bridge structures are summarized. Then, equations of motion of the bridge segment model are developed based oon the classical Lagrange principle, and the critical wind speed of flutter vibration of Humen Bridge is solved using both Scanlan and state space baased methods. Furthermore, the TRID control system is incorporated into the system model, where the TRID inertia mass can be physically installed between connections of consecutive bridge deck sections. Optimal parameters of TRID control system and their interactions, i.e. tuning frequency ratio, damping ratio and rotary inertia ratio, are analyzed through numerical approaches. Based on thorough numerical analysis, the results show that the TRID control system is feasible and effective on enhancing the flutter vibration stability of long span bridge structures, e.g. the ultimate critical wind speed of the illustration can be increased by 10% at the cost of adding an additional 5% rotary inertia to the bridge structure.