プロペラ逆転により減速中の船の運動について II

概要

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This is the second report concerning the stopping maneuvers of Training ship "YUGE MARU", 334GT. In order to investigate the side force and moment exited by the backing propeller, captive model tests are carried out, and at the same time, flow patterns around the stern are also observed. Actual ship tests are carried out again with various combinations of initial ship speeds and reverse propeller revolutions, and with initial yaw rates and side slip velocities. From these analyses, the influence of initial side slip velocity, the rudder deflection effectiveness and the relation between maneuvering motions and propeller loadings are discussed. Experimental results are compared with the linear equation of motion, which, in general, comes to a good agreement, but cannot explain the detailed stopping maneuvers. The unsymmetrical and fluctuating side force observed in model tests is discussed in connection with the better prediction of stopping maneuvers.
社団法人日本航海学会の論文
1981-09-15