Impact detection using ultrasonic waves based on case based reasoning

Takehisa Otsuka, Akira Mita

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

Abstract

This study focuses on a structural health monitoring (SHM) using case-based reasoning (CBR). Structural condition is diagnosed using propagation patterns of ultra-sonic waves. Firstly, emitted pseudo-AE waves are measured in pencil lead fracture experiments. Then, the AE signals are classified into 90 types according to location, magnitude and structural condition. Secondly, pattern identification is conducted using feature parameters extracted from the signals for damage pattern recognition. Finally, feasibility of the method to real structures using CBR is studied. Results showed that the damage patterns could be determined with 82% accuracy. If only the damage location is needed, of the accuracy was higher with 95%. The proposed method using ultra-sonic waves and CBR is thus feasible for practical applications.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6932
DOIs
Publication statusPublished - 2008
EventSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008 - San Diego, CA, United States
Duration: 2008 Mar 102008 Mar 13

Other

OtherSensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
CountryUnited States
CitySan Diego, CA
Period08/3/1008/3/13

Fingerprint

Case based reasoning
Ultrasonic waves
ultrasonic radiation
damage
structural health monitoring
Structural health monitoring
pattern recognition
Pattern recognition
propagation
Experiments

Keywords

  • Acoustic emission
  • Case-based reasoning
  • Structural health monitoring

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Otsuka, T., & Mita, A. (2008). Impact detection using ultrasonic waves based on case based reasoning. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6932). [69321G] https://doi.org/10.1117/12.775728

Impact detection using ultrasonic waves based on case based reasoning. / Otsuka, Takehisa; Mita, Akira.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6932 2008. 69321G.

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

Otsuka, T & Mita, A 2008, Impact detection using ultrasonic waves based on case based reasoning. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6932, 69321G, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, San Diego, CA, United States, 08/3/10. https://doi.org/10.1117/12.775728
Otsuka T, Mita A. Impact detection using ultrasonic waves based on case based reasoning. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6932. 2008. 69321G https://doi.org/10.1117/12.775728
Otsuka, Takehisa ; Mita, Akira. / Impact detection using ultrasonic waves based on case based reasoning. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6932 2008.
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