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Structural and Fatigue Strength Evaluation of a Fairlead Chain Stopper for Floating Offshore Wind Turbines

10 MW급 부유식 해상풍력장치용 패어리드 체인스토퍼의 구조 및 피로 강도 평가

  • Youngjae Yu ;
  • Sanghyun Park ;
  • Youngsik Jang ;
  • Sangrai Cho
  • 유영재 ((주)울산랩 기업부설연구소) ;
  • 박상현 ((주)울산랩 기업부설연구소) ;
  • 장영식 ((주)울산랩 기업부설연구소) ;
  • 조상래 ((주)울산랩)
  • Received : 2023.08.11
  • Accepted : 2023.10.11
  • Published : 2023.12.31

Abstract

In this study, a structural and fatigue strength evaluation of the Fairlead Chain Stopper (FCS) was performed as a part of the development of a disconnectable mooring system to be applied to 10MW floating offshore wind power generation systems. To estimate the load acting on the FCS, a 10 MW semi-submersible floater was designed using the 10 MW wind turbine developed by Technical University of Denmark(DTU). The minimum breaking load (MBL) of the grade R5 and 147mm mooring chain was applied for the FCS strength analysis. The fatigue load was obtained from the coupled analysis results conducted by a collaborating research institute. The structural and fatigue safety of FCS were evaluated in accordance with DNV codes. From the evaluation results, it was confirmed that the FCS satisfies the structural and fatigue safety requirements.

Keywords

Acknowledgement

본 연구는 2021년도 산업통산자원부의 재원으로 한국에너지기술평가원(KETEP)의 지원을 받아 수행된 연구(No20213000000030)입니다.

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