变阻尼式TMD对小雁塔减震控制研究  

Seismic control of the small wild goose pagoda with variable damping type TMD

作　　者：赵祥[1] 刘忠华[1] 王社良[1] 杨涛[1] 展猛 ZHAO Xiang;LIU Zhonghua;WANG Sheliang;YANG Tao;ZHAN Meng(College of Civil Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055

出　　处：《振动与冲击》2018年第8期93-98,131,共7页Journal of Vibration and Shock

基　　金：国家自然科学基金(51678480);陕西省教育厅专项科研项目(14JK1420);西安建筑科技大学西部建筑科技重点实验室项目(K01343)

摘　　要：以传统TMD为基础,设计并制作了一种新型变阻尼式TMD;利用流体力学理论,推导了该阻尼器的等效阻尼系数,建立了变阻尼式TMD体系的MATLAB/Simulink仿真模型,并对一缩尺比例为1/10的小雁塔模型结构进行了仿真分析,通过振动台试验结果与仿真分析值的验证对比后,进一步将该方法应用于小雁塔原型结构的减震分析。结果表明:小雁塔模型结构仿真分析值与试验值大致吻合,验证了该仿真分析方法的可靠性;针对小雁塔原型结构,变阻尼式TMD能够显著地降低结构地震响应,而且结构本身响应越大,控制效果越好;当结构本身响应较小时,由于变阻尼的作用,也能取得较好的控制效果。Based on the traditional TMD,a new type of variable damping TMD was designed and made.Using the theory of fluid mechanics,the equivalent damping coefficient of the damper was deduced.The MATLAB/Simulink simulation model of the variable damping TMD system was established and conducted on a scale of 1/10 small wild goose pagoda structure model,and the dynamic response of simulation was compared with the result of shaking table test.At the same time,the analysis method was further applied to the prototype structure of the small wild goose pagoda.The results show that the simulation results are consistent with the experimental consequence,which verifies the reliability of the simulation method.In view of the small wild goose pagoda prototype structure,variable damping type TMD can significantly reduce the earthquake response of the structure.The greater the response of the structure itself,the better the control effect.When the structure itself is less responsive,it can get better control effect due to the action of variable damping.

关 键 词：TMD 流体力学 变阻尼 仿真分析 地震响应 

分 类 号：TU311.3[建筑科学—结构工程]