Integrated structural health monitoring
Integrated structural health monitoring
复制标题
综合结构健康监测
DOI：
10.1117/12.434158
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Jerry J. Czarnecki
中科院分区：
文献类型：
--
作者：
C. Farrar;H. Sohn;M. Fugate;Jerry J. Czarnecki
结构健康监测是航空航天、土木和机械工程基础设施的损伤检测策略的实施。这种基础设施所经历的典型损坏可能是疲劳裂纹的发展、结构连接的退化或旋转机械中的轴承磨损。本文报告的研究工作的目标是开发一个强大的和具有成本效益的结构健康监测解决方案，通过集成和扩展各种工程和信息技术学科的技术。作者认为，所有的结构健康监测系统必须是特定的应用。因此，一个具体的应用程序，监测焊接抗弯钢框架连接结构受到地震激励，沿着与动机选择这种应用程序。该应用的结构健康监测解决方案将集成结构动力学、无线数据采集、局部驱动、微机电系统（MEMS）技术和统计模式识别算法。建议的系统是基于与许多当前的结构健康监测技术，包括作者过去的努力的不足之处的评估。本文提供了一个例子的综合方法进行结构健康监测在洛斯阿拉莫斯国家实验室，并总结了迄今为止的技术发展的各个方面的进展。
Structural health monitoring is the implementation of a damage detection strategy for aerospace, civil and mechanical engineering infrastructure. Typical damage experienced by this infrastructure might be the development of fatigue cracks, degradation of structural connections, or bearing wear in rotating machinery. The goal of the research effort reported herein is to develop a robust and cost-effective structural health monitoring solution by integrating and extending technologies from various engineering and information technology disciplines. It is the author's opinion that all structural health monitoring systems must be application specific. Therefore, a specific application, monitoring welded moment resisting steel frame connections in structures subjected to seismic excitation, is described along with the motivation for choosing this application. The structural health monitoring solution for this application will integrate structural dynamics, wireless data acquisition, local actuation, micro-electromechanical systems (MEMS) technology, and statistical pattern recognition algorithms. The proposed system is based on an assessment of the deficiencies associated with many current structural health monitoring technologies including past efforts by the authors. This paper provides an example of the integrated approach to structural health monitoring being undertaken at Los Alamos National Laboratory and summarizes progress to date on various aspects of the technology development.