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

高层建筑和大跨桥梁风荷载混合模拟方法开发

• 批准号: 549582-2019
• 负责人: Kwon, OhSung
• 金额: $ 4.23万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=699810
• 关键词: Development; hybrid; simulation; methods; rise

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.

本研究的主要目的是发展一种模拟方法，其中高层建筑物或桥面的物理模型在风洞试验设备中进行试验，而真实的结构的一些动力特性，如质量和能量耗散机制，在计算机中建模。物理模型和数值模型通过传感器的反馈和线性电动机的致动在真实的时间内相互作用。该项目是早期混合风模拟项目的扩展，其中控制策略将得到增强，包括两个自由度的控制，并最大限度地减少致动器响应的延迟。混合风模拟方法的发展有望简化气动弹性风洞试验所需的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。这也将有助于更好地理解风荷载和弹性结构动力响应之间的相互作用。通过该项目，具有不同族裔背景的HQP将发展各学科领域的技能，并接受公平、多样性和包容性方面的培训。