In order to investigate oa a single buoy ・ 皿 ooring in harbour under heavy weather , thls paper provides analytical approaches in the prediction of relatioll between the mooring force and yaw − motion of a ship excited by stro ロ g wind , and also discusses practical rllethods to reduce the force and the yaw − motion , The experimental results of 1 :50 scale model cargQ ship 5, 000 GT class were used to check the ca1 ・ culated results Qf cQmputor si 皿 ulation on these problems . And the model

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... ts in wind and cu エrent carriecl out by m 旻king use of both the wind generator tank and the circula 血 g water tank at our laboratory. 1. 緒