| 多重调质阻尼器制振性能及对桥梁抖振的控制 |
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| 引用本文： | 陈艾荣,项海帆.多重调质阻尼器制振性能及对桥梁抖振的控制[J].同济大学学报(自然科学版),1998,26(2):125-129. |
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| 作者姓名： | 陈艾荣 项海帆 |
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| 作者单位： | 同济大学桥梁工程系!上海，200092 |
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| 基金项目： | 国家自然科学基金!59178358 |
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| 摘 要： | 多重调质阻尼器（MTMD）是由多个具有不同频率、不同阻尼或不同质量的调质阻尼器构成的动力吸振器群，它对宽带激励下结构振动的控制效率在一定条件下要优于单调质阻尼器（STMD）．针对大跨桥梁在紊流风作用下的抖振特点，以上海杨浦大桥为例分析了MTMD的制振机理通过数值分析，讨论了MTMD的频率带宽、阻尼比以及频率比对减振效率和等效阻尼比的影响
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| 关 键 词： | 多重调质阻尼器（MTMD） 桥梁 抖振 振动控制 |
Vibration Suppression Characteristics of Multiple Tuned Mass Damper with Its Application to Buffeting Control of Bridges |
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| Chen Airong, Xiang Haifan.Vibration Suppression Characteristics of Multiple Tuned Mass Damper with Its Application to Buffeting Control of Bridges[J].Journal of Tongji University(Natural Science),1998,26(2):125-129. |
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| Authors: | Chen Airong Xiang Haifan |
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| Abstract: | Multiple Tuned Mass Damper (MTMD) is a kind of dynamic absorber group that consists of a large numberof small oscillators with distributed frequencies and damping or mass. The vibration reduction effectiveness of MTMD tostructures under wide-band excitation is better than those of Single TMD (STMD). In the present paper, the windinduced buffeting suppressing characteristics of TMD to bridges is analysed. The effects of frequency distribution widthband, damping ratios and frequency ratio of TMD to the vibration reduction effectiveness and the equivalent dampingratio are discussed. |
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| Keywords: | Multiple Tuned Mass Damper (MTMD) Bridges Buffeting Vibration control |
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