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ON THE USE OF U-TYPE STABILIZING TANKS FOR REDUCING ROLL MOTIONS IN HEAD SEAS

Many investigations have been conducted on the use of U tanks in the control of the roll motions in beam seas. However, very few papers have dealt with their application in the case of parametric resonance in longitudinal waves. The present paper describes the development of a mathematical model in which the fluid motion inside a U tank is non-linearly coupled to the heave, roll and pitch motions of the ship.