Special Issue of the Society of Naval Architects of Korea (대한조선학회 특별논문집)
- 2011.09a
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- Pages.70-74
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- 2011
Quay Mooring Aanlysis for a Drillship in Typhoon Conditions
드릴쉽의 태풍 시 안벽 계류 해석
- Park, Moon-Kyu (Hyundai Maritime Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
- Cho, Jin-Woog (Hyundai Maritime Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
- Chung, Jin-Hyun (Ship Outfitting Design Dep't 3, Hyundai Heavy Industries Co., Ltd.)
- Published : 2011.09.30
Abstract
This paper describes the quay mooring analysis to verify the safety of a moored drillship in typhoon conditions. Mooring system consists of mooring equipments(deck bollards, shore bitts, mooring lines, fenders) to resist the extreme environmental condition. Wind force acting on the drillship is obtained from the wind tunnel test results. The strength of quay mooring system has been checked. The static mooring analysis shows that the designed mooring system satisfies the mooring design criteria. Vertical displacements of the drillship have been calculated considering the dynamic wave motions and static heelings due to the wind force acting on the ship. With the vertical displacements and the hull draft of drillship, the required water depth for quay mooring has been derived.