Vibration Control of Tall Buildings Using Electricity Generating Tuned Mass Dampers

所提出的研究的目的是开发一种结构控制方法，以有效地减轻大型结构，如高层建筑的风致振动，并在同一时间有效地收获能源，在公用事业规模。高层建筑和细长塔容易受到动态风荷载的影响，可能会经历较大的振动。目前，为了减少建筑物中的这些振动，一种流行的方法是在顶部利用大质量作为调谐质量阻尼器，其在自身运动中吸收一些能量，并将其余能量作为阻尼器中的废热消散。 在这个项目中，提出了一种独特的方法，通过使用一系列优化配置的发电调谐质量阻尼器将耗散的振动能量转换为电力，以提供增强的结构响应抑制。为了优化阻尼器在能量收集和结构控制方面的性能，该项目将对具有拟议调谐质量阻尼器的结构的动力学和能量分析进行全面研究，将设计用于收集和连接到建筑物的高效电磁能量传感器？S或结构？的电网，并将开发一个完整的半主动自供电振动控制系统。该项目将制定新的建模和仿真方法，以分析电气，调谐质量阻尼器和结构系统暴露于风荷载的综合动力学。 可实现的目标包括开发一个实验证明的创新框架，用于双功能振动控制和能量收集，包括能量收集和电网连接所需的硬件以及操作调谐质量阻尼器所需的控制算法。 拟议的研究是多学科的，因为它融合了结构，机械，电力系统和电气工程的概念，用于设计控制结构的最佳系统，以提高其安全性和可靠性，并用于能量收集，以提高结构设计的可持续性。项目成果将通过课程开发、本科生参与项目研究、研究生高级培训和高中生暑期实习外展活动，融入斯托尼布鲁克大学新推出的土木工程、能源技术和机电一体化课程。

The objective of the proposed research is to develop a structural control approach to effectively mitigate the wind-induced vibrations of large structures like high-rise buildings and at the same time efficiently harvest energy at the utility scale. Tall buildings and slender towers, being susceptible to dynamic wind load effects, can experience large vibrations. Currently, to reduce these vibrations in a building, a popular approach is to utilize a large mass at the top as a tuned mass damper which absorbs some energy in its own motion and dissipates the rest as wasted heat in a damper. In this project, a unique approach is proposed to provide enhanced structural response suppression by converting the dissipated vibration energy into electricity by using a series of optimally configured electricity-generating tuned mass dampers. To optimize the performance of the dampers in energy harvesting and structural control, the project will conduct a comprehensive study of the dynamics and energy analysis of structures with proposed tuned mass dampers, will design efficient electromagnetic energy transducers for harvesting and connecting to the building?s or structure?s power grid, and will develop a complete semi-active self-powered vibration control system. The project will formulate new modeling and simulation approaches to analyze the integrated dynamics of the electrical, tuned mass damper and structural systems exposed to wind loads. Deliverables include the development of an experimentally demonstrated innovative framework for dual-function vibration control and energy harvesting, including the hardware required for energy harvesting and grid connection as well as the control algorithms required to operate the tuned mass dampers. The proposed research is multi-disciplinary as it blends concepts of structural, mechanical, power system, and electrical engineering for designing an optimal system for controlling structures to enhance their safety and reliability and, for energy harvesting to enhance sustainability in structural designs. The project results will be integrated in the newly launched Civil Engineering, Energy Technologies, and Mechatronics programs at Stony Brook University through course development, involvement of undergraduate students in project research, advanced training of graduate students, and summer internship out-reach activities for high-school students.