Structural damage identification algorithm based on changes in power spectral density
-
- Beskhyroun Sherif
- Dept. of Civil Eng., Kitami Institute of Technology
-
- Oshima Toshiyuki
- Dept. of Civil Eng., Kitami Institute of Technology
-
- Mikami Shuichi
- Dept. of Civil Eng., Kitami Institute of Technology
-
- Tsubota Yutaka
- Dept. of Civil Eng., Kitami Institute of Technology
Bibliographic Information
- Other Title
-
- パワースペクトル密度の変化に基づく構造損傷同定アルゴリズム
Search this article
Abstract
The occurrence of damage in a structure produces changes in its global dynamic characteristics such as its natural frequencies, mode shapes, modal dampings, modal participation factors, impulse response and frequency response functions. In this paper, a newly derived algorithm based on changes in power spectral density (PSD) is presented. The algorithm is used to detect damage, predict its location and assess the extent of damage in structures. The proposed method is based on only the measured data without the need for any modal identification. The method is described theoretically and applied to the experimental data, from a steel bridge model and bookshelf structure. Several damage scenarios were introduced to the members of the test structures. The method detected the damage, determined the exact location and monitored the increase in damage.
Journal
-
- Journal of applied mechanics
-
Journal of applied mechanics 8 73-84, 2005
Japan Society of Civil Engineers
- Tweet
Details 詳細情報について
-
- CRID
- 1390001205208540928
-
- NII Article ID
- 130004258270
- 40007226660
-
- NII Book ID
- AA11311063
-
- ISSN
- 1884832X
- 13459139
-
- NDL BIB ID
- 7853596
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed