Active Control of Human-Induced Vibration

支撑人类居住者的楼板结构的设计越来越多地受到振动适用性标准的支配。这是由于现代地板系统的细长度增加，以及更少的隔板和其他非结构元件的趋势，否则会提供阻尼。与此同时，对更好的振动性能的需求正在增加。高质量的商业、住宅和医院建筑的居住者会抱怨感觉到过度的振动。此外，许多新的科学、医疗和制造设备对非常低的振动水平也很敏感，支撑它们的结构必须设计成确保适当的振动环境。为了解决这些问题，拟议的研究将探讨使用主动振动控制（AVC）来改善地板结构在人为载荷下的振动性能。PI已经证明这种技术是可行的，但它需要大量的进一步研究才能成为结构工程师和建筑开发商的实用选择。因此，拟议的研究的主要目的是：-识别和开发控制策略，适用于主动控制人引起的地板振动，并通过模拟，实验室测试和现场安装来评估地板振动性能的改善。将研究复杂性的全谱，从简单的单输入单输出并置系统到使用多个传感器和执行器的更复杂的基于自适应模型的系统。开发适用于地板结构上的AVC的惯性驱动技术，从而证明AVC系统可以“包装”成负担得起的、紧凑的、坚固的和可靠的。如果要在高度商业化的土木工程领域实现AVC系统的优势，这些都是必须解决的关键技术障碍。

The design of floor structures supporting human occupants is increasingly being governed by vibration serviceability criteria. This is a result of increasing slenderness of modern floor systems and the trend for fewer partitions and other non-structural elements that otherwise would provide damping. At the same time, demands for better vibration performance are increasing. Occupants of high quality commercial, residential and hospital buildings will complain when excessive levels of vibration are felt. Also, many new items of scientific, healthcare and manufacturing equipment are sensitive to even very low levels of vibration and the structures that support them must be designed to ensure an appropriate vibration environment.To address these issues, the proposed research will investigate the use of active vibration control (AVC) to improve the vibration performance of floor structures under human-induced loading. This technology has already been shown by the PI to be feasible but it requires substantial further research to be established as a practical option for structural engineers and building developers. Hence, the key aims of the proposed research are:- To identify and develop control strategies suitable for active control of human-induced vibrations in floors and to evaluate improvements in floor vibration performance through simulations, laboratory testing and field installation. A full spectrum of complexity will be investigated, ranging from simple single-input-single-output collocated systems to much more complex adaptive model-based systems using multiple sensors and actuators.- To develop inertial actuation technology appropriate for AVC on floor structures, and hence to demonstrate that an AVC system can be `packaged' to be affordable, compact, robust and reliable. These are key technological hurdles that must be addressed if the benefits of AVC systems are to be realised in the highly commercial civil engineering sector.