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Numerical Time Reversal Processing for Impact Detection Using Surface Bonded Piezoceramic

[+] Author Affiliations
Kazuhiko Adachi, Yousuke Sakai, Kinya Sakota

Kobe University

Paper No. IMECE2005-81781, pp. 347-352; 6 pages
doi:10.1115/IMECE2005-81781
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Aerospace
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Aerospace Division
  • ISBN: 0-7918-4210-X | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Time reversal processing for measured sensor signal can be applied to detect not only structural damage but also impact loading of the structure. In this study, a model based impact detection method for structural health monitoring is proposed. Impact identification capability of the numerical time reversal processing is demonstrated by using a rectangular aluminum plate with nine surface bonded piezoceramic sensors. Illustrative numerical simulation results indicate that the proposed method can be successfully identifying both exact impact point and time.

Copyright © 2005 by ASME

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