CAREER: Decentralized Monitoring and Control for Large-Scale Smart Structures with Wireless and Mobile Sensor Networks

这项教师早期职业发展（Career）奖的研究目标是利用无线和移动传感器网络发现一系列分散的基于子结构的监测和控制方法。建立在系统动力学和优化的理论基础上，这种分散方法的基础研究在开发智能大型结构系统方面具有实际实施的潜力。结构监测和结构控制的基础研究包括两个方面：(1)在结构监测方面，将建立基于子结构的有限元模型更新和系统识别策略，以实现高空间分辨率传感器数据的分散合成。利用爬升和飞行移动传感器，研究了分散模型更新和系统识别策略，提供了密集和灵活的部署。（ii）在结构控制方面，将发现基于分散子结构的公式，将分散结构控制问题转化为一个凸优化问题，可以用高效的数值技术来解决。分散控制策略将通过使用具有实时反馈的无线传感和控制网络进行大规模振动台实验来验证。结构安全防护与监测是当今社会面临的一个高度复杂的问题。美国土木工程师。这项研究将使国家得到准确的监测和有效的保护。因此，可以产生重大的社会和经济影响。提出的基础研究具有巨大的应用机会，不仅包括土木结构的监测和控制，而且包括各种机械和航天结构。K-12教育计划包括为期一天的外展活动，其中包含多个有趣的模块，包括讲座和视频，动手比赛和移动传感器的现场演示。促进多样性被放在最高优先级，强调在亚特兰大大都会地区的K-12外展与大量非洲裔学生人口。此外，国际合作和学生交换计划将进一步传播该项目的研究和教育成果。

The research objective of this Faculty Early Career Development (CAREER) award is to discover a series of decentralized substructure-based monitoring and control approaches using wireless and mobile sensor networks. Building upon theoretical foundation in system dynamics and optimization, this fundamental research in decentralized approaches has a potential of practical implementation in developing smart large-scale structural systems. The basic research in structural monitoring and structural control includes two aspects: (i) On structural monitoring, substructure-based finite element model updating and system identification strategies will be created to enable decentralized synthesis of sensor data at high spatial resolution. The decentralized model updating and system identification strategies are to be investigated using climbing and flying mobile sensors that provide dense and flexible deployment. (ii) On structural control, decentralized substructure-based formulations will be discovered to cast the decentralized structural control problem into a convex optimization problem that can be solved with highly efficient numerical techniques. The decentralized control strategies will be validated through large-scale shake-table experiments using a wireless sensing and control network with real-time feedback.The protection and monitoring of structural safety is a highly complex issue faced by today?s civil engineers. This research will enable accurate monitoring and effective protection of the nation?s civil structures, and thus, can generate significant societal and economic impact. The proposed fundamental research has immense opportunities for application, which includes monitoring and control for not only civil structures, but also various mechanical and aerospace structures. The K-12 education plan includes one-day outreach activities containing multiple interesting modules, including lecture and video, hands-on competition, and live demonstration of mobile sensors. The promotion of diversity is placed at highest priority, emphasizing K-12 outreach in metro Atlanta area with large African-American student population. In addition, the international collaboration and student exchange program will further disseminate research and education outcomes generated from this project.