풍력에너지저널 (Journal of Wind Energy)

  • 제10권1호
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  • Pages.36-47
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  • 2019
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  • 2093-5099(pISSN)
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  • 2733-9467(eISSN)
한국풍력에너지학회 (Korea Wind Energy Association)
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조건부 평균 스펙트럼을 적용한 해상풍력 자켓 지지구조물 내진해석

Seismic Analysis of Jacket Substructure of Offshore Wind Turbine Applying Conditional Mean Spectrum

  • 김호선 (한국선급, 연구본부, 선박해양기술센터) ;
  • 윤세웅 (한국선급, 연구본부, 미래기술연구팀) ;
  • 장화섭 (한국선급, 연구본부, 디지털라이제이션팀) ;
  • 곽동엽 (한양대학교, 건설환경공학과)
  • 투고 : 2019.01.29
  • 심사 : 2019.03.12
  • 발행 : 2019.03.31
⟨ 이전 논문 다음 논문 ⟩

초록

This study was carried out for the seismic analysis of offshore wind turbines by seismic load. The seismic waves of the ground were selected using Conditional Mean Spectrum (CMS). A total of five seismic waves were selected by searching seismic waves corresponding to CMS calculated from the NGA-East seismic database. The seismic responses of the selected seismic waves were analyzed in order to consider the influence of the soil layer. As a result of the ground response analysis, the seismic response spectrum of the seabed surface was amplified about two to three times compared with the bedrock seismic wave, and the maximum amplification was observed in the natural period of 0.3 second. Seismic analysis of the offshore wind jacket supporting structure was performed using the estimated seismic waves. As a result of the analysis, DRS can be used for conservative design. However, when economic efficiency is taken into account, a large magnitude earthquake wave must be selected.

키워드

과제정보

본 연구는 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다. (No. 20163030024520)

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