Pushover 해석을 이용한 5MW급 해상풍력터빈의 지진취약도
KCI
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Title
- Pushover 해석을 이용한 5MW급 해상풍력터빈의 지진취약도
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Alternative Title
- Seismic Fragility for 5MW Offshore Wind Turbine using Pushover Analysis
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Author(s)
- 이상근; 김동현; 윤길림
- KIOST Author(s)
- Yoon, Gil Lim(윤길림)
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Alternative Author(s)
- 윤길림
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Publication Year
- 2013-08
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Abstract
- Seismic fragility curves for an offshore wind-turbine structure were obtained. The dynamic response of an offshore wind turbine was analyzed by considering the nonlinear behavior of layered soil and the added mass effect due to seawater. A pile-soil interaction effect was considered by using nonlinear p-y, t-z curves. In the analysis, the amplification effect of ground acceleration through layered soil was considered by applying ground motion to each of the soil layers. The vertical variation in ground motion was found by one-dimensional free-field analysis of ground soils. Fragility curves were determined by damage levels in terms of tower stress and nacelle displacements that were found from static pushover analysis of the wind-turbine structure.
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ISSN
- 1225-0767
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/1663
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Bibliographic Citation
- 한국해양공학회지, v.27, no.4, pp.98 - 106, 2013
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Publisher
- 한국해양공학회
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Keywords
- Offshore wind turbine; 해상풍력터빈; Seismic response; 지진응답; Fragility curve; 취약도 곡선; Pushover analysis; Pushover해석; Soil structure interaction; 지반 구조물 상호작용
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Type
- Article
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Language
- Korean
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