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Similarity-based damage detection method: Numerical study

Authors
Min, C.H.Kim, H.W.Oh, J.W.Cho, S.G.Sung, K.Y.Yeu, T.K.Hong, S.Yoon, S.M.Kim, J.H.
Issue Date
2017
Publisher
Springer Verlag
Keywords
Cosine similarity; Damage detection; Damage index; Offshore structure; Structural health monitoring
Citation
Lecture Notes in Electrical Engineering, v.415 LNEE, pp 428 - 435
Pages
8
Journal Title
Lecture Notes in Electrical Engineering
Volume
415 LNEE
Start Page
428
End Page
435
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8520
DOI
10.1007/978-3-319-50904-4_45
ISSN
1876-1100
Abstract
The main objective of this paper is to develop a new damage detection method. The newly developed damage detection method uses natural frequencies change ratios between non damaged structures and damaged structures. Two parameters, cosine similarity and magnitude index, are considered to estimate location and severity of the damage in the structure. A numerical example, a jacket structure, was considered to verify the performance of the proposed method. As a result, the damages in the structures is accurately detected. ? Springer International Publishing AG 2017.
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