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

该学院早期职业发展（CAREER）奖的研究目标是使用无线和移动的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。 基于系统动力学和优化的理论基础，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：（i）在结构监测方面，将创建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的传感器数据的分散合成。分散的模型更新和系统识别策略进行了研究，使用爬升和飞行的移动的传感器，提供密集和灵活的部署。 (ii)在结构控制方面，将发现基于分散子结构的公式，以将分散结构控制问题转换为可以用高效数值技术解决的凸优化问题。分散控制策略将通过大规模的振动台实验，使用无线传感和控制网络与实时反馈进行验证。保护和监测结构安全是一个高度复杂的问题，今天所面临的？土木工程师。 这项研究将使准确的监测和有效的保护国家？因此，它可以产生重大的社会和经济影响。 拟议的基础研究有巨大的应用机会，其中包括监测和控制，不仅民用结构，而且各种机械和航空航天结构。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，动手比赛以及移动的传感器的现场演示。 多样性的促进被放在最优先的位置，强调K-12在亚特兰大大都会地区的推广与大量的非洲裔美国学生人口。 此外，国际合作和学生交流计划将进一步传播该项目产生的研究和教育成果。

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.