Structural damage detection for hybrid offshore wind and tidal current turbine

Title
Structural damage detection for hybrid offshore wind and tidal current turbine
Author(s)
Kim, W.; Yi, J.-H.; Park, J.-S.
KIOST Author(s)
Yi, Jin Hak(이진학)
Publication Year
2017-06-12
Abstract
Among various renewable energies, wind power has more commercially competitiveness and has been developed very fast for several decades. Further, recently to efficiently utilize ocean resources, there is rising interest on the integrated exploitations of an offshore wind and tidal current energy. Such the hybrid offshore wind and tidal current turbine (HOWTCT) plays an important role in supporting the energy-generating components (blades, hub and nacelle) and resisting wind and wave loads. The purpose of present study is to develop a SHM system and damage detection for the supporting structure of HOWTCT through indoor experiments. Accelerometers at four height levels were installed from the ground to the top. The coherence function between two sets of the measured acceleration responses was employed, and then the averaged integrations of coherence (AIC) function with the frequency were used to identify the damage detection. As a result, it was found that the damage detection for the foundation damage with the operations of wind turbine, tidal turbine and wind and tidal turbines was accurately predicted by the AIC function. © 2017 International Center for Numerical Methods in Engineering. All rights reserved.
ISSN
0000-0000
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23941
Bibliographic Citation
8th Conference on Smart Structures and Materials, SMART 2017 and 6th International Conference on Smart Materials and Nanotechnology in Engineering, pp.247 - 254, 2017
Publisher
International Center for Numerical Methods in Engineering
Type
Conference
Language
English
Publisher
International Center for Numerical Methods in Engineering
Related Researcher
Research Interests

Ocean Energy-Tidal Current Energy Converter System,Infrastructure Management-Structural Health Monitoring,Offshore Wind,해양에너지-조류발전시스템,시설물 유지관리-구조건전성 평가,해상풍력

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