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Proceedings Article

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

[+] Author Affiliations
Jae-Hyung Park, Duc-Duy Ho, Khac-Duy Nguyen, Jeong-Tae Kim

Pukyong National Univ. (Korea, Republic of)

Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79810E (April 13, 2011); doi:10.1117/12.879614
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From Conference Volume 7981

  • Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
  • Masayoshi Tomizuka
  • San Diego, California, USA | March 06, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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 (April 13, 2011); doi:10.1117/12.879614; http://dx.doi.org/10.1117/12.879614


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