Hybrid Structural Health Monitoring Via Integrated Sensing of Global Vibration and Local Infrared Imaging

摘要/ abstract摘要：本项目旨在通过集成传感模块开发土木和机械结构的混合结构健康监测与管理，用于监测、决策、模型管理和控制。这些模块提供了在全球和地方两级评估结构健康状况的能力，并且比侧重于这两级的传统方法提供了更好的性能。一个目标是开发可靠的全局损伤检测和识别方法。该结构将被建模为几个子系统的集成。通过监测各子系统内部的动态行为变化，可以将损伤区域定位到子系统层面。另一个目标涉及发展局部损伤检测方法。本研究将采用并不断发展超声红外成像传感技术。最后的目标是提出这两种方法，全局和局部，在实时监测过程中以相互补充的方式相互作用，以确保最佳的监测和管理结果，包括确定确切的位置和特征的损害，并考虑未知环境条件的影响。

Abstract0511046Henry Yang, Univ. Santa BarbaraThis project aims at the development of a hybrid structural health monitoring and management of civil and mechanical structures through Integrated Sensing module for Monitoring, Decision-Making, Model Management, and Control.Such modules provide the ability of assessing the health condition of structures at both global and local levels, and offers improved performance over traditional methods focused on either level. One objective is to develop reliable global damage detection and identification methods. The structure will be modeled as integration of several subsystems. By monitoring the change in the dynamic behavior within each subsystem, the region of damage can be located at the subsystem level. Another objective involves the development of local damage detection methods. The novel sensing technique using ultrasonic infrared imaging will be adopted and continuously developed in this study. The final objective is to propose that these two methods, global and local, interact in a mutually complimentary manner during real time monitoring process to assure optimal monitoring and management results, including the determination of exact location and characterization of damage and accounting for the effects from unknown environmental conditions.