调谐质量阻尼器与颗粒阻尼器对比试验研究
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摘要
本文通过单自由度主体结构附加悬吊式调谐质量阻尼器和颗粒阻尼器的振动台试验,考察了在同等质量比条件下附加两阻尼器的主体结构在不同地震波激励下的减振性能。试验结果显示:悬吊式调谐质量阻尼器的减振性能较颗粒阻尼器更易受激励地震波特性的影响,颗粒阻尼器的减振性能基本优于同等条件下的悬吊式调谐质量阻尼器。原因在于颗粒阻尼器不仅与调谐质量阻尼器类似,通过调谐质量来减振,还能通过颗粒与颗粒或颗粒与阻尼器腔体之间的碰撞、冲击、摩擦,以及颗粒与主体结构之间的动量交换来耗散主体结构的能量。
The vibration reduction effects of a pendulum tuned mass damper and a particle damper under the same mass ratio were separately investigated by a series of shaking table tests of single degree of a single degree freedom system with such devices under the excitation of different seismic waves. It is shown that the type of seismic waves has a greater influence on the vibration control effect of the pendulum tuned mass damper than that of the particle damper; the damping effect of the particle damper is generally better than that of the pendulum tuned mass damper.The reason lies in particle damper can dissipate input energy not only by tuning mass just as the suspended tuned mass damper,but also by collision,impact and friction between particles and the container,and the momentum exchange effects between the secondary damper mass and the primary structure.
The vibration reduction effects of a pendulum tuned mass damper and a particle damper under the same mass ratio were separately investigated by a series of shaking table tests of single degree of a single degree freedom system with such devices under the excitation of different seismic waves. It is shown that the type of seismic waves has a greater influence on the vibration control effect of the pendulum tuned mass damper than that of the particle damper; the damping effect of the particle damper is generally better than that of the pendulum tuned mass damper.The reason lies in particle damper can dissipate input energy not only by tuning mass just as the suspended tuned mass damper,but also by collision,impact and friction between particles and the container,and the momentum exchange effects between the secondary damper mass and the primary structure.
引文
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[8]Lu Z,Lu X,Lu W,Masri SF.Experimental studies of the effects of buffered particle dampers attached to a multi-degree-of-freedom system under dynamic loads[J].Journal of Sound and Vibration,2012,331(9):2007-22.
[2]任军,滕军,叶列平.地王大厦风振TMD主被动切换混合控制研究[J].地震工程与工程振动,2003(6):187-93.REN Jun,TENG Jun,YE Lieping.Research on vibration control of hybrid mass damper for Diwang Tower under wind loading[J].Earthquake Engineering and Engineering Vibration,2003(6):187-93.(in Chinese)
[3]Wong KK,Harris JL.Seismic damage and fragility analysis of structures with tuned mass dampers based on plastic energy[J].The Structural Design of Tall and Special Buildings,2012,21(4):296-310.
[4]Lieber P,Jensen D P.An acceleration damper:development,design and some applications[J].Transactions of the ASME,1945,67:523-30.
[5]鲁正,吕西林,闫维明.颗粒阻尼技术研究综述[J].振动与冲击,2013(7):1-7.LU Zheng,LU Xilin,Yan Weiming.A survey of particle damping technology[J].Journal of Vibration and Shock,2013(7):1-7.(in Chinese)
[6]闫维明,黄韵文,何浩祥,等.颗粒阻尼技术及其在土木工程中的应用展望[J].世界地震工程,2010,26(4):18-24.YAN Weiming,HUANG Yunwen,HE Haoxiang,et al.Particle damping technology and its application prospect in civil engineering[J].World Earthquake Engineering,2010,26(4):18-24.(in Chinese)
[7]许维炳,闫维明,王瑾,等.调频型颗粒阻尼器与高架连续梁桥减震控制研究[J].振动与冲击,2013,32(23):94-9.XU Weibing,YAN Weiming,WANG Jin,et al.A tuned particle damper and its application in seimic control of continuous viaducts[J].Journal of Vibration and Shock,2013,32(23):94-9.(in Chinese)
[8]Lu Z,Lu X,Lu W,Masri SF.Experimental studies of the effects of buffered particle dampers attached to a multi-degree-of-freedom system under dynamic loads[J].Journal of Sound and Vibration,2012,331(9):2007-22.
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