A Study Of Maneuverability Of A Super Large Container Vessel Under The Effect Of Wind

The emergence of the container is a major breakthrough in transportation technology, which makes transportation of goods when the conversion is more simple. Taking into account cost factors, the trend of very large container vessels is rapidly developing. At the same time, very large container vessel also brought a challenge in view of the safety handling. As we all know, the ship, when at sea, will be affected by wind, wave, current, and other external environmental factors, which cause ship's rolling, pitching, swaying, surging and other movement. Hypertrophy of the superstructure of a large size container vessel makes it would be affected by the wind more seriously and accordingly increase the difficulty in course keeping and normal handling. Meantime, because of depth limitation, the very large container vessel would also affected by the shallow water. In this paper, based on the MMG model proposed by scholars, a mathematical model describing a very large container vessel's movement under effect of wind, current and shallow water is firstly established. After that, the turning ability of a very large container vessel under different ship speed, different wind speed, different current, different states, and different shallow water is studied. And finally, the drifting angle of a very large container vessel at different speed is calculated.This paper firstly makes simulation of ship's turning ability in deep water without effect of the wind by use of MATLAB software, of which shows a general coincidence with the ship's experimental data within accuracy required. On basis of above work, a series simulation of ship's motion in shallow water under different wind and current is made to indicate ship's maneuverability. And finally, the drifting angle of the vessel at different speed is calculated.