A Prediction Method of Roll Damping of a Hardchine Boat at Zero Forward Speed

Abstract

A prediction method of the roll damping of a hardchine boat at zero forward speed is deduced on the basis of experimental results of the roll damping for two dimensional section cylinders. In the prediction method, the roll damping is divided into three components, the wave damping, the eddy damping of the hull and the skeg damping components, and these components are individually predicted. The frictional damping is ignored in the method. The predicted results are in fairly good agreement with measured one for fishing boat models.