Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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Nonlinear Motion Responses for A Moored Ship beside Quay

안벽에 계류된 선박에 대한 비선형 운동응답

  • Lee, Ho-Yooung (Major in Naval Artictectue and Marine Engineering, Mokpo National University) ;
  • Lim, Choon-Gyu (Department of Production Planning, Hyundai Mipo Dockyard Co. Ltd.) ;
  • Lew, Jae-Moon (Department of Naval Artictecture and Ocean Engineering, Chungnam National University) ;
  • Chun, In-Sik (Department of Civil Engineering, Konkuk University)
  • 이호영 (목포대학교 선박해양시스템) ;
  • 임춘규 (현대미포조선(주) 생산기획부) ;
  • 유재문 (충남대학교 공과대학 선박해양공학과) ;
  • 전인식 (건국대학교 공과대학 토목공학과)
  • Published : 2003.05.23
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Abstract

As a typoon gets into harbour, a moored ships shows erratic motions and even mooring line failures is occurred. Such troubles may be caused by harbour resonance phenomena, result in large motion amplitudes at law frequency, which is closed to the natural frequency of the moored ship. The nonlinear motions of a moored ship beside quay are simulated under external forces due to wave, current including mooring forces in time domain. The forces due to waves are obtained from source and dipole distribution method in the frequency domain. The current forces are calculated by using slow motion maneuvering equation in the horizontal plane. The wind forces are calculated from emperical formula of ABS and the mooring forces of ropes and fenders are modeled as linear spring.

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