【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。更多还原

【Abstract】 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.更多还原