高振動数領域のフーリエ振幅を用いた局所損傷同定

DOI Web Site Web Site 被引用文献1件
  • 古川 愛子
    九州大学大学院工学研究院建設デザイン部門
  • 大塚 久哲
    九州大学大学院工学研究院建設デザイン部門

書誌事項

タイトル別名
  • Localized Damage Identification Using Fourier Amplitudes at High Frequency
  • コウシンドウスウ リョウイキ ノ フーリエ シンプク オ モチイタ キョクショ ソンショウ ドウテイ

この論文をさがす

説明

This paper presents a localized damage identification technique for structures using Fourier amplitudes at high frequency. Structural damage is accompanied by changes in element stiffness. These changes alter dynamic characteristics of the structure, which provides useful information about the location and magnitude of damage. In most damage identification techniques using vibration measurements, stiffness changes of whole structural elements are unknowns to identify. Therefore, as the structures' size increases, the number of unknowns also increases and a large number of measurement data are necessary. The proposed technique reduces the number of unknowns to the stiffness reductions of a localized area by extracting localized vibration using high frequency excitation. The number of necessary measured data can also be reduced. The validity of the proposed technique is examined through the numerical study on a continuous girder bridge.

収録刊行物

被引用文献 (1)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ