| 移动荷载作用下的桥梁振动及其TMD控制 |
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| 引用本文： | 肖新标,沈火明.移动荷载作用下的桥梁振动及其TMD控制[J].振动与冲击,2005,24(2):58-61. |
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| 作者姓名： | 肖新标 沈火明 |
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| 作者单位： | 西南交通大学应用力学与工程系,成都,610031 |
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| 基金项目： | 西南交通大学基础科学研究基金资助项目(2001B13) |
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| 摘 要： | 为了全面地了解移动荷载作用下桥梁的振动机理及其调质阻尼器(TMD)控制,将列车简化成移动简谐力模型,对列车过桥时桥梁的振动形态幅频特性作了详细的探讨。然后论述了移动荷载作用下的TMD控制。给出了桥梁在不同速度下的幅频特性曲线以及TMD控制的质量比影响曲线,揭示了移动荷载作用下的桥梁振动及其控制的特点,同时为进一步的桥梁振动控制提供详尽的参考数据。
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| 关 键 词： | 桥梁振动 TMD控制 幅频特性 移动荷载 |
| 修稿时间： | 2003年5月26日 |
Vibration and the TMD Control of Bridges under Moving Loads |
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| Xiao Xinbiao,Shen Huoming.Vibration and the TMD Control of Bridges under Moving Loads[J].Journal of Vibration and Shock,2005,24(2):58-61. |
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| Authors: | Xiao Xinbiao Shen Huoming |
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| Abstract: | In order to take a good look at the mechanism of vibration and the TMD control of bridges under moving loads, the vibration modes and the amplitude frequency charactre of bridges are presented when the passing trail is regraded as a moving force. Then the TMD control is studied. The amplitude frequency character and the influential curve of mass ratin of TMD are also presented to find the vibration characteristics and the control features of bridges under moving loads. Elaborated results are obtained which should be advantagcous for farther advanced vibration control of the bridge. |
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| Keywords: | vibration of bridges tured mass damper control amplitude frequency character moving loads |
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