2024-03-29T06:45:06Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00006855
2022-12-13T02:20:09Z
1:87
Damage detection and localization on structural connections using vibration-based damage identification methods
振動解析を用いた損傷同定法による構造連結部欠陥の検出と位置決定
振動解析を用いた損傷同定法による構造連結部欠陥の検出と位置決定
ベスキロウン, シェリフ
大島, 俊之
三上, 修一
山崎, 智之
open access
社団法人 土木学会, S. Beskhyroun, T. Oshima, S. Mikami, T. Yamazaki, Journal of Applied Mechanics, 6, 2003, 1055-1064.
vibration characteristics
damage detection
modal properties
Damage detection based upon changes in vibration characteristics is one of the few methods that can monitor the structure on a global basis. The basic idea of this method is that any changes in the physical properties of the structure (mass, stiffness and boundary conditions) will in turn cause changes in its modal characteristics (resonant frequency, modal damping and mode shapes). In this paper different damage detection methods, based on change in frequency and in mode shapes, have been summarized and applied using experimental and numerical data from steel beam before and after releasing some supporting bolts. Two multi-layer piezoelectric actuators were used for excitation; the advantages of using this technique of excitation are explained. Effectiveness in detecting and localizing the damage is compared for the different damage detection methods.
application/pdf
社団法人 土木学会
2003-08
eng
journal article
VoR
https://kitami-it.repo.nii.ac.jp/records/6855
応用力学論文集
Journal of Applied Mechanics
6
1055
1064
https://kitami-it.repo.nii.ac.jp/record/6855/files/8669692-2.pdf
application/pdf
1.2 MB
2016-11-22