Studies of Integration and Implementation Issues in the Active Control of Lifeline Systems

本项目主要研究采用主动控制技术的生命线地震工程系统的一般关键问题。一个由四所研究型大学和多学科研究人员组成的联合体将进行一系列协调良好的分析和实验调查，其目的不仅是为了产生立竿见影的效果，同时也为今后技术领域所需的发展奠定基础。拟议的主要任务的目标是：1。开发、设计、制作并组装一个中型的分布式系统实验室模型，代表一个通用的生命线系统，如大跨度桥梁。​2. 设计并实现了一种用于监测试件变形的分布式光纤传感系统。3. 进行支持性分析研究，以(i)评估各种主动控制方案的控制能量需求；（ii）建立仪器和执行器硬件的性能界限；（iii）研究利用光纤方法的振动传感技术的性能限制。4. 进行一系列系统的主动控制实验，以(i)根据适当的数学模型将实验测量结果与预测结果相关联；（ii）确定未来可能阻碍全面实地实施的技术问题。多学科研究团队将确保明确确定和解决未来现场应用的实际实施问题。

This project concentrates on general key research issues pertaining to lifeline earthquake engineering systems using active control techniques. A consortium consisting of four research universities and multidisciplinary investigators will conduct a sequence of well coordinated analytical and experimental investigations designed not only to produce results of immediate usefulness, but also to lay the groundwork for future needed developments in the technological areas. The objectives of the proposed major tasks are to: 1. Develop, design, fabricate and assemble a medium-sized laboratory model of a distributed system representing a generic lifeline system such as a long-span bridge. 2. Design and implement a distributed fiberoptic sensing system for monitoring the deformations of test specimen. 3. Perform supporting analytical studies to (i) evaluate the control energy requirements for various active control schemes, (ii) establish performance bounds on instrumentation and actuator hardware, and (iii) investigate the performance limits of vibration sensing techniques utilizing fiberoptic approaches. 4. Perform a systematic series of active control experiments to (i) correlate the experimental measurements with predictions on the basis of suitable mathematical models, and (ii) identify technology issues that may impede the full-scale field implementation in the future. The multidisciplinary research team will ensure that the practical implementation issues for future field applications are clearly identified and addressed.