2005 Volume 2005 Issue 243 Pages 9-14
The authors developed a component-type mathematical model of hydrodynamic forces acting on a ship hull in steering motion and the availability of the model have been confirmed by experimental data. The mathematical model describes longitudinal force X, lateral force Y and yaw moment N for ship motion with 3 degrees of freedom, and it can cover a wide range motion with small to large yaw rate and drift angle. In this paper, we describes a component-type mathematical model of heel moment K composed of lateral force components for ship motion with 4 degrees of freedom. By the model, heel moment can be estimated easily with known hydrodynamic characteristics analyzed from the hydrodynamic forces X, Y and N.
