EAGER/Collaborative Research: Aeroelastic Real-Time Hybrid Simulation for Wind Engineering Experimentation

这项早期概念探索性研究资助（EAGER）将探索用于地震工程实验的实时混合仿真（RTHS）的可行性，用于极端风荷载等其他自然灾害的实验。RTHS是一种用于结构工程分析的信息物理系统方法，其中实验和数值组件相互连接，以提供结构的系统级响应，该结构具有整体测试的挑战性。这种方法允许复杂的结构行为和负载条件，难以模拟计算，以实验捕捉，而其余的结构，这可以准确地表示数值，模拟，以提供更高的精度和效率的测试。为了将RTHS扩展到包括气动弹性试验，将通过在佛罗里达大学（UF）NSF支持的自然灾害工程研究基础设施（NHERI）实验设施（EF）的边界层风洞（BLWT）中进行的试验来探索空气动力RTHS（aeroRTHS）。aeroRTHS框架将有助于快速创建，调查和验证的下一代缓解策略，充分捕捉复杂的流体-结构相互作用的结构需要调查风灾害的气动弹性响应。航空RTHS框架的成功实现将有助于提高国家基础设施的可靠性和复原力，使人们能够以非破坏性和具有成本效益的方式调查更多适用于更现实情况的风暴灾害缓解方法。一个网络物理系统研讨会将在UF NHERI EF组织和主办，与利用EF的其他网络物理项目一起，以促进在整个风和地震研究界使用aeroRTHS。总结研讨会的报告将存档在NHERI数据库（https：//www.designsafe-ci.org/）。 该项目将提供先进的培训，研究生和本科生在康涅狄格大学和克拉克森大学，通过他们在UF NHERI EF的研究和aerRTHS实验参与。该项目的目标有三个方面：（一）探索RTHS包括空气动力学测试的可行性，（二）通过在UF NHERI EF的BLWT中实施加速采用aeroRTHS先进的测试技术，以及（iii）培训广泛的研究人员，以利用aeroRTHS进行未来的研究工作。许多技术挑战将在这项研究中得到解决，使RTHS是有益的气动/气动弹性实验。这些挑战包括：执行器补偿;稳定性分析;以及由计算子结构的尺寸、风洞模型的增加的时间尺度以及传感器测量的类型和数量所施加的限制。 实现这三个目标将有助于加速RTHS在多灾害应用中的采用，从而扩大这些先进测试方法在自然灾害研究界的影响。将在网络物理系统研讨会上，并通过在NHERI数据仓库存档的报告，制定和传播进行航空RTHS测试所需的设备、软件和方法的具体指南。 这些指南将适合于有兴趣在UF NHERI EF或任何其他风洞设施中使用RTHS进行风应用的研究人员。

This EArly-concept Grant for Exploratory Research (EAGER) will explore the feasibility of Real-Time Hybrid Simulation (RTHS), used for earthquake engineering experimentation, for experimentation for other natural hazards such as extreme wind loadings. RTHS is a cyber-physical systems approach to structural engineering analysis where experimental and numerical components are interfaced to provide the system-level response of a structure that is challenging to test in its entirety. This approach allows complex structural behavior and loading conditions, difficult to model computationally, to be captured experimentally while the remainder of the structure, which can be accurately represented numerically, is simulated to provide increased accuracy and efficiency in the test. To extend RTHS to include aeroelastic testing, aerodynamic RTHS (aeroRTHS) will be explored through tests at the boundary layer wind tunnel (BLWT) at the University of Florida's (UF) NSF-supported Natural Hazards Engineering Research Infrastructure (NHERI) Experimental Facility (EF). The aeroRTHS framework will facilitate the rapid creation, investigation, and validation of the next generation of mitigation strategies by fully capturing the complex fluid-structure interaction in structures needed to investigate the aeroelastic response from wind hazards. The successful realization of the aeroRTHS framework will contribute to the reliability and resilience of the nation's infrastructure by enabling the investigation of an increased number of windstorm hazard mitigation approaches applied to more realistic situations in a non-destructive, cost-effective manner. A cyber-physical systems workshop will be organized and hosted at the UF NHERI EF, in conjunction with other cyber-physical projects utilizing the EF, to facilitate the use of aeroRTHS throughout the wind and seismic research communities. A report summarizing the workshop will be archived in the NHERI Data Depot (https://www.designsafe-ci.org/). This project will provide advanced training to graduate and undergraduate students at the University of Connecticut and Clarkson University through their involvement in the research and aeroRTHS experimentation at the UF NHERI EF. The goals of this project are threefold: (i) to explore the feasibility of RTHS to include aerodynamic testing, (ii) to accelerate the adoption of aeroRTHS advanced testing techniques through implementation in the BLWT at the UF NHERI EF, and (iii) to train a broad spectrum of researchers to utilize aeroRTHS for future research efforts. Numerous technical challenges will be addressed in this research to enable RTHS to be beneficial for aerodynamic/aeroelastic experimentation. These challenges include: actuator compensation; stability analysis; and limitations imposed by the size of the computational substructure, the increased time scale of wind tunnel models, and the type and number of sensor measurements. Achieving these three goals will help accelerate the adoption of RTHS for multi-hazard applications, thus broadening the impact of these advanced testing methodologies within the natural hazards research community. Specific guidelines for equipment, software, and methods needed to conduct aeroRTHS tests will be developed and disseminated at the cyber-physical systems workshop and through a report archived in the NHERI Data Depot. These guidelines will be suitable for investigators interested in employing RTHS for wind applications at the UF NHERI EF or at any other wind tunnel facility.