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Proceedings Article

Real-time health monitoring of bridge structures using a reference-free damage detection algorithm

[+] Author Affiliations
Soon Gie Lee, Gun Jin Yun

The Univ. of Akron (USA)

Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79814X (April 18, 2011); doi:10.1117/12.882097
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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 proposes a continuous real-time structural health monitoring (SHM) and damage detection system. Wavelet packet decomposition (WPD) with a likelihood ratio was used for the damage sensitive indicator (DSI). A benchmark model updating structure instrumented with acceleration sensors was used for demonstration tests. A real-time reference-free damage detection algorithm is successfully implemented and verified using the benchmark test structure. The DSI based on WPD with a likelihood ratio algorithm showed consistency with two different damage scenarios. Furthermore, the application was web-published on a remote collaboratory site for remote access to a real-time structural health monitoring system.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Soon Gie Lee and Gun Jin Yun
"Real-time health monitoring of bridge structures using a reference-free damage detection algorithm", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79814X (April 18, 2011); doi:10.1117/12.882097; http://dx.doi.org/10.1117/12.882097


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