FSRU-LNGC旁靠作业运动响应
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摘要
对浮式储存及再气化装置(FSRU)-液化天然气船(LNGC)多浮体系泊系统在风、浪、流联合作用下的水动力响应进行研究。提出一种多浮体系泊系统旁靠作业的布置方式,通过数值模拟得到风、浪、流联合作用下该系统六自由度运动及相对运动、缆绳张力和护舷受力的响应时程,分析给出连接缆绳预张力对船舶运动响应、缆绳张力和护舷受力的影响规律。结果表明,该布置方式可满足选择的环境载荷使用要求,所采用的数值模拟方法对同类多浮体系泊系统运动分析有参考意义。
The hydrodynamic response of FSRU-LNGC multi floating mooring system under the combined influence of wind, wave and flow is studied. A layout scheme of multi floating mooring system's side-by-side operation is proposed. The motion response time history of the system's six degrees of freedom motion, relative motion, cable tension and fender force under the combined influence of wind, wave and flow is obtained by numerical simulation. The influence of pre-tension of the connecting cables on ship's motion response, cable tension and the fender force is analyzed and given. The results indicate that the layout scheme can meet the requirements of use under the selected environmental load, and the adopted numerical simulation method has reference significance for the motion analysis of similar multi floating mooring systems.
The hydrodynamic response of FSRU-LNGC multi floating mooring system under the combined influence of wind, wave and flow is studied. A layout scheme of multi floating mooring system's side-by-side operation is proposed. The motion response time history of the system's six degrees of freedom motion, relative motion, cable tension and fender force under the combined influence of wind, wave and flow is obtained by numerical simulation. The influence of pre-tension of the connecting cables on ship's motion response, cable tension and the fender force is analyzed and given. The results indicate that the layout scheme can meet the requirements of use under the selected environmental load, and the adopted numerical simulation method has reference significance for the motion analysis of similar multi floating mooring systems.
引文
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[3]许佳伟.浮式LNG项目卸料系统技术现状及发展趋势[J].山东工业技术,2017(9):272.
[4]谷家扬,章培,彭贵胜,等.不同系泊模式LNG旁靠超大型FSRU系泊系统设计及水动力性能分析[C]//纪念船舶力学创刊二十周年学术会议.2017.
[5]李永超,杨启.台风状态下码头护舷受力与吸能特点分析[J].武汉理工大学学报(交通科学与工程版),2011,35(4):743-747.
[6]BERG T E,BAKKE J.Ship-to-Ship LNG Transfer in Arctic Waters[C]//Proceedings of 27th International Conference on Offshore Mechanics and Arctic Engineering.2008.
[7]CHO S K,SSNG H G,HONG J P,et al.Experimental Study of Motion Behavior of Side-by-Side Moored Two Floating Bodies Including Sloshing in Head Sea[J].Journal of Ocean Engineering&Technology,2012,26(6):343-348.
[8]KOO B J,KIM M H.Hydrodynamic Interactions and Relative Motions of Two Floating Platforms with Mooring Lines in Side-by-Side Offloading Operation[J].Applied Ocean Research,2005,27(6):292-310.
[9]INOUE Y,ISLAM M.Relative Motions of Multiple Floating Offshore Structures[C]//Proceedings of 18th International Conference on Offshore Mechanics and Arctic Engineering.1999.
[10]刘应中.船舶在波浪上的运动理论[M].上海:上海交通大学出版社,1987.
[11]ZHAO W H,YANG J M,ZHI-QIANG H U.Hydrodynamic Interaction Between FLNG Vessel and LNG Varrier in Side by Side Configuration[J].Journal of Hydrodynamics,2012,24(5):648-657.
[12]CHEN X B.Hydrodynamics in Offshore and Naval Applications[C]//Proceedings of 6th International Conference on Hydrodynamics.The University of Western Australia,Perth Australia.2004.
[13]徐亮瑜.多浮体水动力干扰研究[D].上海:上海交通大学,2014.
[14]祁祺.FPSO-LNG多体系统水动力数值计算及分析[D].武汉:华中科技大学,2011.
[15]ZHAO D,HU Z,CHEN G.Experimental Investigation on Dynamic Responses of FLNG Connection System During Side-by-Side Offloading Operation[J].Ocean Engineering,2017,136:283-293.
[16]OCIMF.Mooring Equipment Guidelines[S].4ed,2008.
[17]YUE J,CHEN P,LIU Y,et al.Fatigue Life Prediction Method of Fairleads Installed on a FPSO[C]//The 17th International Congress of the International Maritime Association of the Mediterranean on“Maritime Transportation and Harvesting of Sea Resources”.2017.