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http://dx.doi.org/10.3744/SNAK.2004.41.5.028

Experimental Study on the Variation of Maneuvering Characteristics of Container Ship with Rudder Type  

Kim, Yeon-Gyu (Korea Research Institute of Ships & Ocean Engineering / KORDI)
Kim, Sun-Young (Korea Research Institute of Ships & Ocean Engineering / KORDI)
Kim, Sung-Pyo (Daewoo Ship Building and Marine Engineering Co. Ltd.)
Lee, Suk-Won (Daewoo Ship Building and Marine Engineering Co. Ltd.)
Publication Information
Journal of the Society of Naval Architects of Korea / v.41, no.5, 2004 , pp. 28-33 More about this Journal
Abstract
Generally Horn-type rudders have been used for single propeller and single rudder system. The reason is that the rudder torques of Horn-type rudder are smaller than those of Spade rudder with same lift force. But it is found that the rudder cavitation occurs on a Horn-type rudder of fast container ship. In this paper the comparison results of Horn-type and Spade rudders are described. HPMM tests are carried out to compare the effects of two rudder types on the maneuverability of a ship. It is shown that the maneuvering performance of a ship equipped with Horn-type rudder is better than that equipped with Spade rudder by comparing the test results and maneuvering coefficients at scantling condition. The reason is that the movable part area of Horn-type rudder is about 14％ larger than that of Spade rudder with same total area. And the rudder torque of Spade rudder is greater than that of Horn rudder. At ballast condition, however, the effect of rudder type is negligible.
Keywords
Spade rudder; HPMM test; Rudder torque; Maneuvering coefficients; Simulation; Horn-type rudder;
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