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发布时间：2019-03-11

论文类型：会议论文

发表时间：2011-01-26

收录刊物：Scopus、CPCI-S、EI

卷号：14

页面范围：2796-2806

关键字：Flutter vibration control; tuned rotary inertia damper; bridge deck; long span bridge structure; parameter optimization; dynamic interactions

摘要：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 on the classical Lagrange principle, and the critical wind speed of flutter viobration of humen bridge is solved using both Scanlan and state space based methods. Furthermoere, 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 intertia ratio, are analyzed through numerical approaches. Based on through 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. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of [name organizer]