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Proceedings Article

The use of matching pursuit decomposition for damage detection and localization in complex structures

[+] Author Affiliations
S. B. Kim, A. Chattopadhyay

Arizona State Univ. (USA)

A. D. Nguyen

Los Gatos Research, Inc. (USA)

Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798129 (April 14, 2011); doi:10.1117/12.880635
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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 focuses on damage detection, localization and quantification in metallic plates using an array of sensors and an advanced feature extraction algorithm. The Matching Pursuit Decomposition (MPD) algorithm is used for timefrequency signal analysis. Using MPD, measured signals are decomposed into multiple wave modes. The individual wave modes are analyzed to determine the cause of signal changes and the location of the damage. An aluminum plate made of 6061 alloy was instrumented with piezoelectric transducers and used for testing and validation of the proposed concept.

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Citation

S. B. Kim ; A. Chattopadhyay and A. D. Nguyen
"The use of matching pursuit decomposition for damage detection and localization in complex structures", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798129 (April 14, 2011); doi:10.1117/12.880635; http://dx.doi.org/10.1117/12.880635


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