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http://dx.doi.org/10.12652/Ksce.2011.31.6A.399

Development of a Damage Monitoring Technique for Jacket-type Offshore Structures using Fiber Bragg Grating Sensors  

Park, Hyun-Jun (한국과학기술원 건설 및 환경공학과)
Koo, Ki-Young (경일대학교 건설공학부)
Yi, Jin-Hak (한국해양연구원 연안개발.에너지연구부)
Yun, Chung-Bang (한국과학기술원 건설 및 환경공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.6A, 2011 , pp. 399-408 More about this Journal
Abstract
Development of smart sensors for structural health monitoring and damage detection has been advanced remarkably in recent years. Nowadays fiber optic sensors, especially fiber Bragg grating (FBG) sensors, have attracted many researchers' interests for their attractive features, such as multiplexing capability, durability, lightweight, electromagnetic interference immunity. In this paper, a damage detection approach of jacket-type offshore structures by principal component analysis (PCA) technique using FBG sensors are presented. An experimental study for a tidal current power plant structure as one of the jacket-type offshore structures was conducted to investigate the feasibility of the proposed method for damage monitoring. It has been found that the PCA technique can efficiently eliminate environmental effects from measured data by FBG sensors, resulting more damage-sensitive features under various environmental variations.
Keywords
fiber Bragg grating sensors; offshore structures; structural health monitoring; principal component analysis; damage detection; environmental effects;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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