Abstract
This paper deals with a method estimating theoretically effects of breadth and depth of restricted waters on the radiation forces, the wave exciting forces and the amplitudes of ship motions in regular head waves.
The approach used here is based on the strip theory and the slender body theory. Hydrodynamic forces on a ship model without the tank wall effect are assumed to be given by the strip theory and the reflections of waves generated by a ship model oscillation from the tank walls are assumed to be estimated by applying the slender body theory. In the next place, the amplitudes of ship motions in regular head waves are obtained by using those hydrodynamic forces. Finally correlation works between the theoretical results and experimental ones are done. It becomes clear from this investigation that the theoretical results obtained by this method are in good agreement with the experimental ones except for a damping coefficient for heave in very shallow water.
