Experimental Determination of Scale,Speed,and Hull Interaction Effects on Heave Motion Coefficients of a Small Waterplane Area Twin Hull Ship.

摘要

Pure heave oscillation tests were conducted within a range of forward speeds, frequencies, and amplitudes of oscillation on two single hull models representing a small waterplane area design with prime buoyancy derived from the well-submerged bulbous hull. Geometrically, the models differed only in size. Comparing the experimentally obtained non-dimensionalized heave motion coefficients of the two models generally showed independency of model scale, forward speed and especially amplitude of oscillation. The effect of twin hull interaction on the coefficients of heave motion was determined with additional experiments on a third model (the twin hulls for the larger model) with the result that interaction was fairly insignificant. The test results with a discussion and conclusion for all three models are presented in this report. (Author)