타의 종류에 따른 컨테이너선의 조종성능 특성 연구

Abstract

Generally Horn rudders have used for single propeller and single rudder system. The reason is that the rudder torques of Horn rudder are smaller than those of Spade rudder with same lift force. But it is found that the rudder cavitation is occurred on a Horn rudder of fast container ship. In this paper the comparison results of Horn and Spade rudders are proposed. HPMM tests are carried out to compare the maneuverability of two rudder types. The maneuvering performance of Horn rudder is better than that of Spade rudder by comparing the test results and maneuvering coefficients. The results of simulation shows same characteristics. It is thought that the movable part area of Horn rudder is larger about 14% than that of Spade rudder. And the rudder torque of Spade rudder is greater than that of Horn rudder. So it is necessary to study about decreasing rudder torque and designing optimum area of Spade rudder in the future.