悬链式单点系泊油轮鱼尾效应影响  

Fishtailing Effect of the Tanker with CALM System

作　　者：孙强 阎军 彭东升 王文华 岳前进 SUN Qiang;YAN Jun;PENG Dongsheng;WANG Wenhua;YUE Qianjin(Dalian Shipbuilding Industry Co.,Ltd.,Dalian 116005,Liaoning,China;Faculty of Vehicle Engineering and Mechanics,Dalian University of Technology,Dalian 116023,Liaoning,China)

机构地区：[1]大连船舶重工集团有限公司,辽宁大连116005 [2]大连理工大学运载工程与力学学部,辽宁大连116023

出　　处：《船舶工程》2025年第3期28-35,共8页Ship Engineering

摘　　要：[目的]针对鱼尾效应引起悬链式单点系泊船舶发生较大运动响应的问题,[方法]基于模型试验验证的数值计算模型开展设计参数对鱼尾效应极限响应的影响研究。对风、浪、流幅值进行更加细分的组合研究,获得不同组合工况下船舶艏摇和锚链受力规律,分析不同组合工况下环境载荷和规律。创新性地提出通过增大船首导缆孔间距抑制鱼尾效应极值,研究船首缆绳长度和船尾拖轮力大小及不同环境组合对鱼尾效应的抑制影响,并从船舶受力和力矩时程的角度进行机理分析。[结果]结果表明,鱼尾效应会导致低海况出现艏摇和锚链载荷极值的反常现象,缆绳长度和拖轮力对悬链式单点系泊油轮的鱼尾效应影响显著,导缆孔孔距能有效控制油轮艏摇非稳定性运动。[结论]单点系泊设计阶段应充分考虑鱼尾效应及抑制措施。[Purpose]A preliminary theoretical analysis of the fishtail effect is conducted to address the issue of significant motion response caused by the fishtail effect on single point mooring vessels.[Method]A numerical analysis method validated by model experiments is applied to study the influence of design parameters on the ultimate response of the fishtail effect.A more detailed combination study on the amplitude of wind,waves,and currents is conducted,obtaining the force laws of ship bow sway and anchor chain under different combination conditions,analyzing the environmental load laws under different combination conditions.It is innovatively proposed that the increase of bow and fairlead spacing can reduce the extreme value of fishtail effect,the influence of bow cable length,stern tug force,and environment conditions on fishtail effect are studied,and the mechanism are analyzed from the perspective of ship force and torque history.[Result]The results show that fishtail effects lead to abnormal yaw and mooring tension extreme values in low sea conditions.The influence of bow cable length and stern tug force is remarkable.The increase of bow and fairlead spacing controlls the unsteady yaw motion effectively.[Conclusion]Fishtail effects and preventive measures should be fully considered in catenary anchor leg mooring(CALM)design.

关 键 词：悬链式单点系泊 甩尾效应 设计影响 

分 类 号：U671.99[交通运输工程—船舶及航道工程]