Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Experimental Study of Excessive Yaw Motion of Turret Moored Floating Body

터렛 계류된 부유체의 과대 선수동요에 관한 실험 연구

  • 조석규 (한국해양과학기술원 선박해양플랜트연구소) ;
  • 성홍근 (한국해양과학기술원 선박해양플랜트연구소) ;
  • 홍장표 (한국해양과학기술원 선박해양플랜트연구소) ;
  • 최항순 (전 서울대학교 조선해양공학과)
  • Received : 2012.10.05
  • Accepted : 2012.12.04
  • Published : 2013.02.20
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Abstract

Excessive yaw motion of a turret moored vessel was examined in this paper. The vessel was moored by an internal turret and catenary mooring lines. The experiments were conducted in regular waves. Turret moored vessel can oscillate from side to side or move to one particular direction, and eventually exhibit large yaw motion. The results showed that the excessive yaw occured for specific condition, ratio of wave lengths and vessel length. It was found that turret moored floating vessel was unstable for regular wave period from 14 to 18 sec and excessive yaw occurred to maximum 50 deg. The time series, trajectory, phase plot and qualitative analysis are performed. The analysis showed that the results of experiments agreed with the that of analytic method and the excessive yaw could be predicted by the stability analysis.

Keywords

References

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Cited by

  1. Extreme Mooring Analysis of Turret Moored LNG-FSRU vol.53, pp.5, 2016, https://doi.org/10.3744/SNAK.2016.53.5.435