多自由度结构-串并联调谐质量阻尼器减震性能  

Seismic performance of tuned tandem mass dampers for MDOF structures

作　　者：王振洲 安子凡 曹黎媛 李春祥[1] WANG Zhen-zhou;AN Zi-fan;CAO Li-yuan;LI Chun-xiang(School of Mechanics and Engineering Science,Shanghai University,Shanghai 200444,China)

机构地区：[1]上海大学力学与工程科学学院,上海200444

出　　处：《振动工程学报》2024年第2期318-325,共8页Journal of Vibration Engineering

基　　金：上海市青年科技英才扬帆计划资助项目(21YF1412700);国家自然科学基金资助项目(51978391)。

摘　　要：针对提出的串并联调谐质量阻尼器(TTMD)减震系统,采用粒子群算法,在频域内对多自由度结构⁃TTMD系统进行优化分析。建立多自由度结构⁃TTMD系统减震控制仿真分析模型,分别考虑不同类型实际地震记录,在时域内研究了TTMD对结构地震响应的控制效率,并与相同总质量比的调谐质量阻尼器(TMD)进行比较。进一步考虑了结构刚度发生10%和30%退化的情况,分析了TTMD系统对刚度退化结构的减震效果。数值结果表明,TTMD系统减震性能和鲁棒性能优于TMD系统,且具有阻尼需求小、安装简单、易于实现等优势,是一种增强型减震系统。Directed at the proposed earthquake reduction system,named the tuned tandem mass dampers(TTMD),the optimized analysis of the multi-degree-of-freedom(MDOF)structure-TTMD system has been investigated in frequency domain by the parti⁃cle swarm optimization.The seismic simulation of the MDOF structure-TTMD system has been established under earthquakes.Considering different types of seismic records,the control efficiency of TTMD for the structural seismic responses was analyzed in the time domain and compared to that of the tuned mass damper(TMD)with the equal total mass ratio.Further taking into ac⁃count the structural stiffness of the-10%and-30%degradations,the earthquake reduction behaviors of TTMD were scruti⁃nized for the seismic responses of the structure with the stiffness degradation.It is found in terms of numerical results that the TT⁃MD outperforms the TMD in seismic performance and robustness.Likewise,the TTMD has a drastically reduced damping de⁃mand,thus being an enhanced earthquake reduction system.

关 键 词：结构振动控制 串并联调谐质量阻尼器 刚度退化 动力时程分析 减震鲁棒性 

分 类 号：TU352.1[建筑科学—结构工程]