Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Model Test on Motion Responses and Anchor Reaction Forces of an Articulated Tower-Type Buoy Structure in Waves

아티큘레이티드 타워 형태의 부이 구조물에 관한 파랑 중 운동응답 및 앵커 지지력에 관한 모형시험 연구

  • Kwon, Yong-Ju (Korea Research Institute of Ships and Ocean Engineering, KRISO) ;
  • Nam, Bo Woo (Korea Research Institute of Ships and Ocean Engineering, KRISO) ;
  • Kim, Nam Woo (Korea Research Institute of Ships and Ocean Engineering, KRISO) ;
  • Won, Young-Uk (Korea Research Institute of Ships and Ocean Engineering, KRISO) ;
  • Park, In-Bo (Korea Research Institute of Ships and Ocean Engineering, KRISO) ;
  • Kim, Sea-Moon (Korea Research Institute of Ships and Ocean Engineering, KRISO)
  • 권용주 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 남보우 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김남우 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 원영욱 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 박인보 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김시문 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • Received : 2018.08.08
  • Accepted : 2019.06.13
  • Published : 2019.06.30
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Abstract

A series of model tests was performed to evaluate the survivability of an articulated tower-type buoy structure under harsh environmental conditions. The buoy structure consisted of three long pipes, a buoyancy module, and top equipment. The scale model was made of acrylic pipe and plastic with a scale ratio of 1/22. The experiments were carried out at the ocean engineering basin of KRISO. The performance of the buoy structure was investigated under waves only and under combined environmental conditions from sea state (SS) 5 to 7. A nonlinear time-domain numerical simulation was conducted using the mooring analysis program OrcaFlex. The survivability of the buoy was analyzed based on three factors: the pitch motion, submergence of the top structure, and anchor reaction force. The model test results were directly compared to the results of numerical simulations. The effects of the sea state and combined environment on the performance of the buoy structure were investigated.

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References

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