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유사도 기반 해양 자켓 구조물 손상추정Similarity-based Damage Detection in Offshore Jacket Structures
- Other Titles
- Similarity-based Damage Detection in Offshore Jacket Structures
- Issue Date
- 2016
- Publisher
- 한국해양공학회
- Keywords
- Damage detection 손상추정; Cosine similarity 코사인 유사도; Structural health monitoring 구조건전성 모니터링; Offshore structure 해양구조물; Damage index 손상지수
- Citation
- 한국해양공학회지, v.30, no.4, pp 287 - 293
- Pages
- 7
- Journal Title
- 한국해양공학회지
- Volume
- 30
- Number
- 4
- Start Page
- 287
- End Page
- 293
- ISSN
- 1225-0767
2287-6715
- Abstract
- This paper presents an effective damage detection method for offshore jackets using natural frequency change ratios. Two parameters, cosine similarity and magnitude index, are considered to estimate the location and severity of the damage in the structure. A numerical jacket structure model is considered to verify the performance of the proposed method. As observed through analysis, the damages in the structure are detected accurately.
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