主 讲 人：青岛大学机电工程学院 侯方伟

讲座时间：2023年6月19日 14：00

讲座地点：L栋416室

主讲人简介：

个人简介：

侯方伟，青岛大学机电工程学院讲师，青年卓越人才，2020年11月获美国爱荷华州立大学博士学位。主要研究内容包括高层建筑的风荷载参数辨识、风振响应预测以及振动控制等方面。以第一作者身份在 Journal of Wind Engineering and Industrial Aerodynamics及 Engineering Structures等期刊发表论文5篇。

讲座内容简介：

A novel method is proposed to predict the wind-induced buffeting response of tall buildings in time domain subject to a known wind field – synoptic (straight-line) or non-synoptic (e.g. tornado). This method uses the cross-sectional-aerodynamic properties, which can be identified from wind tunnel tests, to predict the buffeting response of tall buildings. Good agreement was observed between the simulated results and those from the benchmark model study in wind tunnels, which indicates the potential of the proposed method to predict buffeting response of a tall building in real time. In order to control the wind-induced vibration of tall buildings, a novel smart morphing façade (SMF) system that uses the concept of an aerodynamically modified building façade, was proposed and tested. The SMF consists of two parts, a fixed base and a rotating part that can be rotated by a protruding fin. By rotating the fin, the porosity of the duct as well as the fin inclination angle can be changed simultaneously enabling the control of flow through the duct. The performance of the SMF system was studied using the CAARC building model under atmospheric boundary layer wind and its effectiveness in reducing the building response was examined. It was found that the effectiveness of the SMF system is dependent on many factors, such as configuration, wind speed, angle of attack and direction of vibration.