TTLCD-偏心结构转化为TTMD-偏心结构的减振控制研究

符川

振动与冲击 ›› 2016, Vol. 35 ›› Issue (20) : 183-189.

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (20) : 183-189.
论文

TTLCD-偏心结构转化为TTMD-偏心结构的减振控制研究

  • 符川
作者信息 +

Vibration control of transforming TTLCD-eccentric structure to TTMD- eccentric structure

  • FU Chuan
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文章历史 +

摘要

针对偏心结构,研究在地震激励下,扭转调频液柱阻尼器(TTLCD)系统优化参数和对结构减振控制的模拟。首先通过比较TTLCD-结构体系和TTMD-结构体系的耦联微分方程,可将TTLCD-结构体系转化为TTMD-结构体系,从而得到TTLCD-主结构与TTMD-主结构质量比、频率比、主结构自振频率和主结构阻尼等,利用Ikeda公式对TTLCD阻尼比和频率比参数优化,并用有限元软件来对复杂结构减振控制进行数值计算。通过单层偏心结构和4层偏心放置单个或多个TTLCDs为例,用Ikeda公式求得TTLCDs参数,并用SAP2000进行结构分析,同时与MATLAB结果进行对比,验证了该方法的合理性和可行性。

Abstract

The optimal parameters of torsional tuned liquid column damper (TTLCD) and numerical simulation on vibration control of eccentric structure under earthquake load are investigated. Based on comparing the coupled differential equations of TTLCD -structure and TTMD (torsional tuned mass damper)-structure, the TTLCD-structure system can be transformed to TTMD-structure system. The mass ratio, the optimal frequency ratio, the natural frequency and damping of the main structure are achieved. Modal tuning of the TTLCD (frequency ratio and damping) is classically done by applying the Ikeda optimization criterion. The analysis of structural vibration control using finite element software is presented. Single-storey eccentric structure and four-storey eccentric structure with single TTLCD or TTLCDs are numerically simulated. Based on the TTLCD parameters using Ikeda formula, the structural analysis by SAP 2000 software compared with the results from MATLAB show that the method of a transforming TTLCD-structure to TTMD-structure system is reasonable and feasible.

关键词

TTLCD / TTMD / 参数优化 / 数值模拟 / 动力反应 / 减振控制

Key words

Torsional tuned liquid column damper (TTLCD) / torsional tuned mass damper (TTMD) / optimal parameter / numerical simulation / dynamical response / vibration control

引用本文

导出引用
符川. TTLCD-偏心结构转化为TTMD-偏心结构的减振控制研究[J]. 振动与冲击, 2016, 35(20): 183-189
FU Chuan. Vibration control of transforming TTLCD-eccentric structure to TTMD- eccentric structure[J]. Journal of Vibration and Shock, 2016, 35(20): 183-189

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