On the Ship Manoeuvring Characteristics in Shallow water

抄録

The relationship between inherent ship manoeuvrability, human factor and environmental condition is often mentioned as very important factors for the safety of navigation and analysis of marine accidents. Especially, the relationship between these three factors becomes more closre and complicated in shallow water. Because of this reason, it is difficult to say what the main cause is exactly. Underneath this situation, the demand for establishing a new guideline or standards of ship manoeuvrability in shallow water have been gradually growing up and researches for the effect of shallow water have been performed.
However, the researches such as hydrodynamic forces acting on a ship, mathematical model in shallow water have been performed independently and there are a few researches considering a ship manoeuvring characteristics in shallow water.
Therefore, in present study, the authors focus on a ship manoeuvring characteristics in shallow water rather than hydrodynamic forces or mathematical model. In addition, because it have been recently said that the factors of ship form are concerned with the manoeuvring characteristics in both shallow and deep water, the relationship between the factors of ship form and manoeuvring characteristics in shallow water is investigated. In order to investigate these relationship, the numerical simulation of manoeuvring motion in shallow water is performed and compared with the results of model test. And then some results are shown as examples.