超大型集装箱船水动力时域分析  

Time Domain Hydrodynamic Analysis of Ultra Large Container Ships

作　　者：陈明高 李雪剑 付泽坤 李海洲[1] 米洁 CHEN Minggao;LI Xuejian;FU Zekun;LI Haizhou;MI Jie(Jiangnan Shipyard(Group)Co.,Ltd.,Shanghai 201913,China)

机构地区：[1]江南造船(集团)有限公司,上海201913

出　　处：《船舶与海洋工程》2022年第5期26-30,共5页Naval Architecture and Ocean Engineering

摘　　要：以一艘超大型集装箱船研究对象,对其进行水动力时域分析。在横摇阻尼计算中,考虑横摇角度和黏性的影响,进行波浪载荷长期预报迭代计算,得到各浪向下的最大横摇角;在此基础上,利用切片模型和舭龙骨参数计算得到横摇阻尼系数。采用三维时域全航速水动力理论预报集装箱船的运动响应和船体剖面载荷,分析船体运动和剖面载荷的航速效应。结果发现:除了垂荡航速效应不明显,可忽略,其余航速的影响均不可忽略;纵荡和垂向弯矩航速效应尤为明显。An ultra large container ship is taken as the research object to carry out time domain hydrodynamic analysis. The largest roll angle in each wave directions are obtained when the roll angle and viscous effect are considered in the roll damping calculation and long-term iterative calculation of the wave loads is performed. On this basis, the roll damping coefficients are calculated by using the strip model and the bilge keel parameters. The 3 D time domain hydrodynamic theory for full speed is adopted to predict the motion responses and sectional loads of the container ship, and the speed effect on ship motions and sectional loads are analyzed. The result shows that all the speed effect cannot be neglected except for the heave motions which are not so significant. Among them the motion of surge and vertical bending moment due to the speed effect is especially significant.

关 键 词：水动力分析 集装箱船 横摇阻尼 时域 

分 类 号：U661.3[交通运输工程—船舶及航道工程] U674.131[交通运输工程—船舶与海洋工程]