Development of hybrid simulation methods for high-rise buildings and long-span bridges subjected to wind load

这项研究的主要目的是开发一种模拟方法，即在风洞试验装置中测试高层建筑或桥梁桥面的物理模型，同时在计算机中模拟真实结构的一些动态特性，如质量和能量耗散机理。物理模型和数值模型通过传感器的反馈和直线电机的驱动进行实时交互。该项目是早先的混合风模拟项目的扩展，该项目的控制策略将得到增强，包括两个自由度的控制，并将执行器响应的延迟降至最低。混合风模拟方法的开发有望简化气动弹性风洞试验所需物理模型的准备和校准。该研究项目旨在大幅降低气动弹性风洞试验所需的试验成本，如机器时间和工程时间。这一发展也将有助于更好地理解风致荷载与弹性结构动力响应之间的相互作用。通过该项目，具有不同种族背景的HQP将发展不同学科领域的技术技能，并将接受公平、多样性和包容性方面的培训。

The main objective of the proposed research is to develop a simulation method in which a physical model of a high-rise building or a bridge deck is tested in a wind tunnel testing facility while some of dynamic properties of the real structure, such as mass and energy dissipation mechanism, are modelled in a computer. The physical and the numerical models interact with each other in real time through feedback from sensors and actuation of linear electric motors. This project is an expansion of an earlier hybrid wind simulation project where the control strategy will be enhanced to include control of two degrees of freedom and to minimize the delay in the actuators' responses. The development of the hybrid wind simulation method is expected to simplify preparation and calibration of physical models required for aeroelastic wind tunnel tests. The research project is aimed at substantially reducing the testing cost, such as machine time and engineering time, required for aeroelastic wind tunnel test. The development will also lead to better understanding on interaction between wind-induced load and dynamic response of an elastic structure. Through the project, HQPs with diverse ethnic background will develop technical skills in various subject areas and will also be trained in equity, diversity, and inclusion.