Structural health monitoring by high-frequency vibration measurement with non-contact laser excitation

I. Kajiwara, D. Miyamoto, Naoki Hosoya, C. Nishidome

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

4 Citations (Scopus)

Abstract

This paper proposes a vibration testing and health monitoring system based on an impulse response excited by a laser ablation. High power YAG pulse laser is used for producing an ideal impulse force on structural surface. It is possible to measure high frequency vibration responses in this system. A health monitoring system is constructed by this vibration testing system and a damage detecting algorithm. A microscopic damage of structures can be extracted by detecting fluctuations of high frequency vibration response with the present health monitoring system. In this study, loosening of bolt tightening torques is defined as the damage of the system. The damage is detected and identified by statistical evaluations with Recognition-Taguchi method.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7984
DOIs
Publication statusPublished - 2011
EventHealth Monitoring of Structural and Biological Systems 2011 - San Diego, CA
Duration: 2011 Mar 72011 Mar 10

Other

OtherHealth Monitoring of Structural and Biological Systems 2011
CitySan Diego, CA
Period11/3/711/3/10

Fingerprint

vibration measurement
Vibration measurement
Laser excitation
structural health monitoring
Structural health monitoring
systems health monitoring
Health
damage
vibration
Monitoring
Bolt tightening
excitation
lasers
impulses
Taguchi methods
Testing
Laser ablation
Impulse response
bolts
Laser pulses

Keywords

  • Health monitoring
  • Impulse response
  • Laser ablation
  • Loose bolt detection
  • MT method
  • RT method

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Kajiwara, I., Miyamoto, D., Hosoya, N., & Nishidome, C. (2011). Structural health monitoring by high-frequency vibration measurement with non-contact laser excitation. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7984). [79841K] https://doi.org/10.1117/12.879355

Structural health monitoring by high-frequency vibration measurement with non-contact laser excitation. / Kajiwara, I.; Miyamoto, D.; Hosoya, Naoki; Nishidome, C.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7984 2011. 79841K.

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

Kajiwara, I, Miyamoto, D, Hosoya, N & Nishidome, C 2011, Structural health monitoring by high-frequency vibration measurement with non-contact laser excitation. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7984, 79841K, Health Monitoring of Structural and Biological Systems 2011, San Diego, CA, 11/3/7. https://doi.org/10.1117/12.879355
Kajiwara I, Miyamoto D, Hosoya N, Nishidome C. Structural health monitoring by high-frequency vibration measurement with non-contact laser excitation. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7984. 2011. 79841K https://doi.org/10.1117/12.879355
Kajiwara, I. ; Miyamoto, D. ; Hosoya, Naoki ; Nishidome, C. / Structural health monitoring by high-frequency vibration measurement with non-contact laser excitation. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7984 2011.
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