Active damage detection method using support vector machine and amplitude modulation

Akira Mita, Ryuta Taniguchi

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

13 Citations (Scopus)

Abstract

A structural health monitoring (SHM) system for the purpose of maintenance cost reduction or performance guarantee of civil, mechanical and aerospace systems is proposed. The proposed system utilizes an active sensing diagnostic technique to predict the location of structure damage with a limited number of PZT elements and some vibrators if necessary. As PZT elements are inexpensive, small in size, and function as sensors and actuators, it is possible to integrate them into a structural component without reducing structural performance. In this study, an active sensing diagnostic technique using PZT elements is proposed to characterize damage in plates. Built-in PZTs working as Lamb wave emitters and receivers are used to predict damage by comparing differences of Lamb wave signals recorded before and after damage. Such differences are due to the change of the physical parameters relevant to damage in the structure. Amplitude modulation is used in this paper by actuating PZTs with different driving signals to effectively extract damage features. Modulated signals are processed to form feature vectors for support vector machines to estimate damage automatically.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsS.C. Liu
Pages21-29
Number of pages9
Volume5391
DOIs
Publication statusPublished - 2004
EventSmart Structures and Materials 2004 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems - San Diego, CA, United States
Duration: 2004 Mar 152004 Mar 18

Other

OtherSmart Structures and Materials 2004 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems
CountryUnited States
CitySan Diego, CA
Period04/3/1504/3/18

Fingerprint

Amplitude modulation
Damage detection
Surface waves
Support vector machines
damage
modulation
Vibrators
Structural health monitoring
Cost reduction
Actuators
Lamb waves
Sensors
aerospace systems
cost reduction
structural health monitoring
maintenance
emitters
receivers
actuators
sensors

Keywords

  • Amplitude modulation
  • Damage detection
  • Health monitoring
  • Support vector machine

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Mita, A., & Taniguchi, R. (2004). Active damage detection method using support vector machine and amplitude modulation. In S. C. Liu (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5391, pp. 21-29) https://doi.org/10.1117/12.540268

Active damage detection method using support vector machine and amplitude modulation. / Mita, Akira; Taniguchi, Ryuta.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / S.C. Liu. Vol. 5391 2004. p. 21-29.

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

Mita, A & Taniguchi, R 2004, Active damage detection method using support vector machine and amplitude modulation. in SC Liu (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5391, pp. 21-29, Smart Structures and Materials 2004 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, CA, United States, 04/3/15. https://doi.org/10.1117/12.540268
Mita A, Taniguchi R. Active damage detection method using support vector machine and amplitude modulation. In Liu SC, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5391. 2004. p. 21-29 https://doi.org/10.1117/12.540268
Mita, Akira ; Taniguchi, Ryuta. / Active damage detection method using support vector machine and amplitude modulation. Proceedings of SPIE - The International Society for Optical Engineering. editor / S.C. Liu. Vol. 5391 2004. pp. 21-29
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