一种新型调谐质量阻尼器的试验研究

施卫星1,何斌1,李晓玮2,鲁正1

振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 207-211.

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PDF(1929 KB)
振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 207-211.
论文

一种新型调谐质量阻尼器的试验研究

  • 施卫星1,何斌1,李晓玮2,鲁正1
作者信息 +

Experimental Study of a New Tuned Mass Damper

  • Shi Weixing1  HE Bin1  Li Xiaowei2   Lu Zheng1
Author information +
文章历史 +

摘要

:用填充颗粒群的盒子代替调谐质量阻尼器的质量块,形成一种新型调谐质量阻尼器。通过对比单自由度排架不附加、附加该新型调谐质量阻尼器的自由振动,白噪声激励以及实际地震输入下的振动台试验,考察了该新型阻尼器对结构的减振控制效果。试验研究表明:颗粒的填充率对振动衰减影响明显,表现出双峰值的曲线特征;颗粒质量对衰减率的影响不明显,实际工程可以采用轻质颗粒材料;输入地震波能量与衰减率呈抛物线形。试验还从振型特性方面表明采用调谐颗粒阻尼器有利于减轻结构振动响应。

Abstract

 A new type of tuned mass damper can be generated by taking a box filled with particles instead of the mass. The vibration reduction effects with or without this new damper  under free vibration, white noise, and onsite earthquake excitations, were investigated by a series of shaking table tests. The main structure was a bent frame with a single degree of freedom. It was shown that the filling ratio of the particles had a significant influence on the vibration control, revealing the characteristics of a bimodal curve; lightweight materials could be applied in practice owing to the slight effect of the particle mass on vibration reduction; a parabolic curve revealed the relationship between the input energy of seismic waves and the vibration damping. Also, the tests verified the effective performance on vibration control of the new tuned mass damper in respect of vibration mode.

关键词

新型调谐质量阻尼器 / 振动台试验 / 结构振动控制 / 影响因素

Key words

a new type of tuned mass damper / shaking table tests / structure vibration control / influence factor

引用本文

导出引用
施卫星1,何斌1,李晓玮2,鲁正1 . 一种新型调谐质量阻尼器的试验研究[J]. 振动与冲击, 2015, 34(12): 207-211
Shi Weixing1 HE Bin1 Li Xiaowei2 Lu Zheng1. Experimental Study of a New Tuned Mass Damper[J]. Journal of Vibration and Shock, 2015, 34(12): 207-211

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