二枚舵に働く流体力に関する一考察-一様流中模型実験による検討-

概要

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Recently the ship equipped VecTwin Rudder system is on increase. VecTwin Rudder is provided by two rudders that is the fish-shape section with end-plates. The rudder has eleven typical operation modes. The operation modes can be done by keeping propeller rotating ahead. On a usual voyage the ship is piloted on parallel rudder angle to avoid any confusion in rudder indications. And also The ship has constantly the torque acting on the rudder stocks on a voyage, because the rudder horizontal section is the asymmetric fish-shape.The rudder is very convenient system for use, but the relation between the operation modes and a position of a ship's helm has not been known in detail. And also the relation between the shape of fishlike rudder section and hydrodynamic forces has not been known in detail. In this paper, the authors tries to examine experimentally the relation between the shape of fishlike rudder section and hydrodynamic forces. In addition the authors examine the best possible combination of the rudder angles.And also the authors tries to examine experimentally the validity of the ship handling on parallel rudder angle.
弓削商船高等専門学校の論文
2007-02-28