Bolted joint loosening detection by using laser excitation

Feblil Huda, Itsuro Kajiwara, Naoki Hosoya, Shozo Kawamura

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

In this paper, the authors propose a finite element model of a simple single bolt joint that undergoes loosening in order to verify characteristic changes due to bolt loosening and develop a loose-bolt detection system. The model is created using 3D solid elements and surface-to-surface contact elements between head/nut and flange interfaces. Pretension effects and contact behavior between flanges to be joined are also taken into account. In order to validate the finite element model by experiment, vibration testing method based on non-contact impulse excitation by high-power YAG pulse laser which can produce an ideal impulse is conducted. The characteristic changes due to the bolt loosening in high frequency region can be extracted by the present laser excitation system. Finally, an approach of loose bolt detection is demonstrated by applying statistical evaluation of Recognition-Taguchi (RT) method to a six bolt cantilever which has loose bolt.

本文言語English
ホスト出版物のタイトルHealth Monitoring of Structural and Biological Systems 2013
DOI
出版ステータスPublished - 2013 6 10
イベントSPIE Conference on Health Monitoring of Structural and Biological Systems 2013 - San Diego, CA, United States
継続期間: 2013 3 112013 3 14

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
8695
ISSN(印刷版)0277-786X

Conference

ConferenceSPIE Conference on Health Monitoring of Structural and Biological Systems 2013
国/地域United States
CitySan Diego, CA
Period13/3/1113/3/14

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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