船体とプロペラの干渉を考慮した舵性能の推定

概要

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For accurate prediction of ship maneuverability, it is indispensable to estimate accurately rudder forces of a ship. In this paper, an attempt is made of estimation of the rudder forces, which mean rudder normal force and hull forces induced by steering, for general ship hull forms using a method developed by the present author. This method can evaluate the rudder forces taking the interaction effects of the hull and propeller into account within the potential theory. Especially, steady rudder forces acting on the ship steered in straightly moving condition is focused from the viewpoint of course-keeping ability. As a result, it is found that the present method is useful for practical estimation of the rudder forces behind the hull and propeller. Further, effects of wake fraction, rudder area and distance between hull and rudder on hull-rudder interaction coefficients and steady turning performance are discussed.
社団法人日本船舶海洋工学会の論文
1994-03-29