集装箱船靠泊状态下垂荡与横摇运动特性研究  

Study of the heave and roll motions of docked container ship

作　　者：韩健 张新曙[1,2] HAN Jian;ZHANG Xin-shu(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai 200240,China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]高新船舶与深海开发装备协同创新中心,上海200240

出　　处：《水动力学研究与进展（A辑）》2021年第2期312-318,共7页Chinese Journal of Hydrodynamics

摘　　要：该文使用边界元程序WAMIT计算了靠泊状态集装箱船在入射波激励下的垂荡与横摇运动响应特性。对于斜浪(45°)与横浪(90°)情况,研究了靠泊集装箱船在满载与空载条件下垂荡与横摇幅值随入射波频率的变化。对比开阔海域与靠泊状态下集装箱船的垂荡与横摇运动幅值,发现了靠泊状态下集装箱船垂荡与横摇最大幅值增加的现象,并通过比较两种情况下的水动力系数与波浪力,探究该现象产生的原因。研究了船体与墙壁之间距离对集装箱船垂荡以及横摇运动幅值的影响。在开阔海域中,空载集装箱船横摇最大幅值大于满载情况;对于靠泊状态的集装箱船,斜浪下满载集装箱船的横摇幅值可能大于空载情况下;而横浪作用下,靠泊的空载集装箱船横摇最大幅值大于其他情况。The present paper studies the characteristics of the heave and roll motions of a docked container ship under regular incident waves are studied by using the radiation-diffraction code WAMIT. For beam sea and oblique sea conditions, the variations of heave and roll motion amplitudes of docked container ships at full-loaded or ballast condition with the incident wave frequency are computed, respectively. By comparing the results of a docked container ship to those in an open sea, it is found that the amplitudes of heave and roll motions may increase when the container ship is docked. The mechanism of this phenomenon is studied by investigating the wave exciting forces and hydrodynamic coefficients of a container ship when it is in open sea or docked. The effects of the clearance between the ship hull and the dock on the maxima of the heave and roll motion amplitudes are analyzed. In the open sea, the maximum of the roll amplitude of a container ship at ballast condition will be larger than that of a container ship at full-loaded condition. In oblique sea, the maximum of roll amplitude of a docked container ship at full-loaded condition may be larger than that of a docked container ship at ballast condition. However, in beam sea, the maximum roll amplitude of a docked container ship at ballast condition will be much larger than those of other conditions.

关 键 词：集装箱船 靠泊 垂荡 横摇 

分 类 号：O359.1[理学—流体力学]