涌浪作用下港内大型集装箱船运动特性数值研究

随着船舶大型化和港口建设深水化发展，外海不同周期波浪作用下大型系泊船泊稳问题与小型系泊船相比出现了新的特点。为此，利用数值模型方法研究了在不同入射角度和周期的涌浪作用下港内大型系泊船的水动力响应，针对系泊船的泊稳情况探讨了船舶的运动规律和运动特性。研究发现，在涌浪周期较大的情况下，限定波高的泊稳标准不足以用来确定系泊船的正常作业条件，港内泊船的水平运动（纵荡、横荡和艏摇）极易超出运动标准值并影响装卸作业效率，并且船舶的水平运动表现出主要由次重力波主导的低频运动特性，而垂直运动（垂荡、横摇和纵摇）表现出主要由短波主导的波频运动特性。

Numerical research on motion characteristics of a large container ship moored at a port under swell

With the development of larger ships and deeper port construction, new features have emerged in the berthing stability of large moored ships under different periods of wave action in the outer sea compared to smaller ships. To this end, numerical models are used to simulate the hydrodynamic response of a large moored ship in a port under the action of swell waves of different incidence angles and periods and explors the motion laws and motion characteristics of the ship for the mooring stability. It was found that the berthing stability criterion of limited wave height is not sufficient to determine the normal operating conditions of a moored vessel with large swell periods, and that the horizontal motion (surge, sway and yaw) can easily exceed the motion criterion values and affect the efficiency of (un)loading operations, moreover, the horizontal motion of the ship exhibits low-frequency motion characteristics dominated by infragravity waves, while the vertical motion (heavy, roll and pitch) exhibits wave frequency motion characteristics dominated by short waves.