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논문 기본 정보

자료유형
학술저널
저자정보
Huang, Han (Offshore Engineering Department, American Bureau of Shipping) Zhang, Jun (Ocean Engineering Program, Civil Engineering Department, Texas A&M University, College Station) Zhu, Liyun (Ocean Engineering Program, Civil Engineering Department, Texas A&M University, College Station)
저널정보
테크노프레스 Ocean systems engineering Ocean systems engineering 제3권 제4호
발행연도
2013.1
수록면
257 - 273 (17page)

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초록· 키워드

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Top tensioned riser (TTR) is often used in a floating oil/gas production system deployed in deep water for oil/gas transport. This study focuses on the extension of the existing numerical code, known as CABLE3D, to allow for static and dynamic simulation of a TTR connected to a floating structure through a tensioner system or buoyancy can, and restrained by riser guides at different elevations. A tensioner system usually consists of three to six cylindrical tensioners. Although the stiffness of individual tensioner is assumed to be linear, the resultant stiffness of a tensioner system may be nonlinear. The vertical friction between a TTR and the hull at its riser guide is neglected assuming rollers are installed there. Near the water surface, a TTR is forced to move horizontally due to the motion of the upper deck of a floating structure as well as related riser guides. The extended CABLE3D is then integrated into a numerical code, known as COUPLE, for the simulation of the dynamic interaction among the hull of a floating structure, such as spar or TLP, its mooring system and riser system under the impact of wind, current and waves. To demonstrate the application of the extended CABLE3D and its integration with COUPLE, the numerical simulation is made for a truss spar under the impact of Hurricane "Ike". The mooring system of the spar consists of nine mooring lines and the riser system consists of six TTRs and two steel catenary risers (SCRs).

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