Multi-scale hybrid sensor nodes for acceleration-impedance monitoring for steel structural connections

Jae-Hyung Park; Duc-Duy Ho; Khac-Duy Nguyen; Jeong-Tae Kim

doi:10.1117/12.879614

13 April 2011 Multi-scale hybrid sensor nodes for acceleration-impedance monitoring for steel structural connections

Jae-Hyung Park, Duc-Duy Ho, Khac-Duy Nguyen, Jeong-Tae Kim

Proceedings Volume 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011; 79810E (2011) https://doi.org/10.1117/12.879614
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

This paper presents hybrid structural health monitoring of steel girder connections using wireless acceleration and impedance sensor nodes based on Imote2-platform. To achieve the research objective, the feasibility of the sensor nodes is examined about its performance for vibration-based global monitoring and impedance-based local monitoring in the structural systems as the following approaches. First, a damage monitoring scheme is described in parallel with global vibration-based methods and local impedance-based methods. Second, multi-scale sensor nodes that enable combined acceleration-impedance monitoring are described on the design of hardware components and embedded software to operate. Third, the performances of the multi-scale sensor nodes are experimentally evaluated from damage monitoring in a lab-scaled steel girder with bolted connection joints.

Citation Download Citation

Jae-Hyung Park, Duc-Duy Ho, Khac-Duy Nguyen, and Jeong-Tae Kim "Multi-scale hybrid sensor nodes for acceleration-impedance monitoring for steel structural connections", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79810E (13 April 2011); https://doi.org/10.1117/12.879614

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