Abstract

The ability to detect and classify damages in complex materials and structures is an important problem from both safety and economical perspectives. This paper develops a novel approach based on Hidden Markov Models (HMMs) for the classification of structural damage. Our approach here is based on using HMMs for modeling the time-frequency features extracted from time-varying structural data. Unlike conventional deterministic methods, the HMM is a stochastic approach which better accounts for the uncertainties encountered in the structural problem and leads to a more robust health monitoring system. The utility of the proposed approach is demonstrated via example results for the classification of fastener damage in an aluminum plate.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6523
DOIs
StatePublished - 2007
EventModeling, Signal Processing, and Control for Smart Structures 2007 - San Diego, CA, United States
Duration: Mar 19 2007Mar 21 2007

Other

OtherModeling, Signal Processing, and Control for Smart Structures 2007
CountryUnited States
CitySan Diego, CA
Period3/19/073/21/07

Fingerprint

Hidden Markov models
damage
systems health monitoring
fasteners
Fasteners
safety
Health
aluminum
Aluminum
Monitoring

Keywords

  • Damage classification
  • Damage detection
  • Hidden Markov model
  • Matching pursuit decomposition
  • Structural health monitoring

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Wenfan, Z., Kovvali, N., Papandreou-Suppappola, A., Cochran, D., & Chattopadhyay, A. (2007). Hidden Markov model based classification of structural damage. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6523). [652311] https://doi.org/10.1117/12.716132

Hidden Markov model based classification of structural damage. / Wenfan, Zhou; Kovvali, Narayan; Papandreou-Suppappola, Antonia; Cochran, Douglas; Chattopadhyay, Aditi.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6523 2007. 652311.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wenfan, Z, Kovvali, N, Papandreou-Suppappola, A, Cochran, D & Chattopadhyay, A 2007, Hidden Markov model based classification of structural damage. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6523, 652311, Modeling, Signal Processing, and Control for Smart Structures 2007, San Diego, CA, United States, 3/19/07. https://doi.org/10.1117/12.716132
Wenfan Z, Kovvali N, Papandreou-Suppappola A, Cochran D, Chattopadhyay A. Hidden Markov model based classification of structural damage. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6523. 2007. 652311 https://doi.org/10.1117/12.716132
Wenfan, Zhou ; Kovvali, Narayan ; Papandreou-Suppappola, Antonia ; Cochran, Douglas ; Chattopadhyay, Aditi. / Hidden Markov model based classification of structural damage. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6523 2007.
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