论文部分内容阅读
本文提出了用于高层建筑风振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，在频域内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，所设计的ＡＴＭＤ能有效地抑制高层建筑的风振响应。
This paper presents a simple method for the design of active FM mass damper (ATMD) for wind-induced vibration control of high-rise buildings. Starting from the working principle of TMD, the composition of active control force is explicitly defined in the physical sense. Based on the SDOF model of the structure and the Gaussian white noise assumption of the generalized fluctuating wind force, the displacement variance at the top of the structure is taken as the design goal in the frequency domain. The gain of the control force is optimized by the parameters and a closed solution of the gain of the control force is obtained. This paper proposes a design scheme for selecting parameters to maintain a constant TMD travel. A super high-rise building is given as an example. Numerical analysis shows that the designed ATMD can effectively suppress the wind-induced vibration response of high-rise buildings.