变化型惯质调谐质量阻尼器的优化与性能评价  

Optimization and performance evaluation of variant tuned mass damper inerter

作　　者：李亚峰 李寿英 陈政清 LI Ya-feng;LI Shou-ying;CHEN Zheng-qing(Hunan Provincial Key Laboratory for Wind Engineering and Bridge Engineering,College of Civil Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学土木工程学院风工程与桥梁工程湖南省重点实验室,湖南长沙410082

出　　处：《振动工程学报》2020年第5期877-884,共8页Journal of Vibration Engineering

基　　金：国家重点研发计划项目(2017YFC0703600,2017YFC0703604)。

摘　　要：提出一种变化型惯质调谐质量阻尼器(VTMDI)的模型,并对其减振性能进行了系统研究。首先,以单自由度结构体系为研究对象,采用固定点理论对VTMDI进行结构参数优化,得到VTMDI的最优频率比和最优阻尼比表达式;然后,通过与已有的三种典型调谐质量阻尼器模型(TMD,VTMD和TMDI)在简谐激励和随机激励情况下的对比,得到VTMDI和TMDI的减振效果远优于VTMD和TMD,说明表观质量在主结构减振方面有较大的优势,且相同表观质量条件下VTMDI具有比TMDI更好的减振效果,为设计新型调谐质量阻尼器模型提供了理论上的参考。A model of variant tuned mass damper inerter(VTMDI)is proposed and its performance for vibration control is systematically investigated.Firstly,considering a single degree of freedom dynamical system(primary structure),structural parameters of VTMDI are optimized by using fixed-point theory,and the optimal frequency ratio and optimal damping ratio of VTMDI are obtained.Then,compared with three typical tuned mass damper models(TMD,VTMD and TMDI)under harmonic and random excitations,the results show VTMDI and TMDI are much better than VTMD and TMD in reducing vibration.It shows that apparent mass has a greater advantage in vibration control of primary structure,and VTMDI performs better than TMDI on same apparent mass.These results provide a theoretical reference for the design of a novel tuned mass damper.

关 键 词：调谐质量阻尼器 振动控制 惯质 固定点理论 

分 类 号：TU352.1[建筑科学—结构工程] TU311.3