Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2004.11a
  • /
  • Pages.889-893
  • /
  • 2004
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Estimation of Fastened Condition of Bolts Using PZT Patches

압전소자를 이용한 볼트체결 상태계측 및 측정

  • 채관석 (전북대학교 기계설계공학과) ;
  • 하남 (전북대학교 정밀기계공학과) ;
  • 홍동표 (전북대학교 정밀기계공학과) ;
  • 채희창 (전북대학교 기계설계공학과)
  • Published : 2004.11.01
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Abstract

This work presents a study on development of a practical and quantitative technique for assessment of the structural health condition by piezoelectric impedance-based technique associated with longitudinal wave propagation method. The bolt fastening condition is adjusted by torque wrench. In order to estimate the damage condition numerically, three damage indices, impedance peak frequency shift ${\Delta}F$ is proposed in this paper. Furthermore, an assessment method is described for estimation of the damage by using these three damage indices.

Keywords