用主动调频质量阻尼器控制高层建筑的风致振动

本文提出了用于高层建筑风振动控制的主动调频质量阻尼器（ＡＴＭＤ）设计的一种简单方法。从ＴＭＤ的工作原理出发，在物理意义上显式定义主动控制力的构成，基于结构的ＳＤＯＦ模型和广义脉动风力的高斯白噪声假定，在频域的以最小化结构顶层位移方差为设计目标，对控制力增益进行参数优化，得出控制力增益的封闭解，文中提出了以维持ＴＭＤ行程恒定为目标进行参数选择的设计方案，一超高层建筑作为算例给出，数值分析表明，所设计

Wind-induced Vibration Control of Tall Buildings Using Aetive Tuned Mass Damper

A simple method for the design of an active tuned mass damper for vibration control in tall buildings is presented The building motions are modeled by the first mode of the response,and it is assumed that the generalized wind force is Gaussian white noise Through analyzing the basic principle of the passive TMD,the active control force is physically defined and its parameter optimization is conducted in the frequency domain The controller gains that minimize the variance of the rooftop displacement are derived in closed form Another procedure for the design of the controller gains is also presented,which can maintain the variance of the stroke response of the mass damper at the level of its passive counterpart A high rise building is studied to quantify and assess their effectiveness Through the numerical analyses,the ATMD designs presented are shown to be effective in reducingthe wind excited response of high buildings