Difficulties associated with the acoustic source localization in anisotropic plates and its solution

H. Nakatani, Tribikram Kundu, K. Ito, N. Takeda

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

1 Scopus citations

Abstract

Acoustic source localization technique for anisotropic plates proposed by the authors in an earlier publication is applied here to a carbon fiber composite laminate. Difficulties associated with this technique are investigated. It is noted that the accuracy of this technique depends strongly on the accuracy of the measurement of the time delays in recorded signals by three receiving sensors placed in close proximity in the sensor cluster. The sensor cluster is needed to obtain the direction of the acoustic source without knowing the material properties of the plate. It is proposed here that to obtain the accurate time delays not the full time histories but only the beginning part of every time history (the first dip and peak) should be taken for the subsequent steps of signal processing. With these modifications improved predictions are obtained.

Original languageEnglish (US)
Title of host publicationStructural Health Monitoring 2013: A Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013
PublisherDEStech Publications
Pages2651-2658
Number of pages8
Volume2
ISBN (Print)9781605951157
StatePublished - 2013
Event9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013 - Stanford, United States
Duration: Sep 10 2013Sep 12 2013

Other

Other9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013
CountryUnited States
CityStanford
Period9/10/139/12/13

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Information Management

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