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

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

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトルHealth Monitoring of Structural and Biological Systems 2011
DOI
出版ステータスPublished - 2011 5 24
イベントHealth Monitoring of Structural and Biological Systems 2011 - San Diego, CA, United States
継続期間: 2011 3 72011 3 10

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
7984
ISSN(印刷版)0277-786X

Conference

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

ASJC Scopus subject areas

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

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