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The vertical movements of a trimaran, which can produce a vertical acceleration, always make people feel seasickness and cause equipment damage on the board. This paper presents a method of a trimaran vertical stabilization control. First, the trimaran mathematical equation is obtained by the numerical simulation and verified by the trimaran experiment in the water tank. Then, the vertical stabilization appendages, including T-foil and flap, are designed and installed at the bottom of the trimaran. Second, an active controller of the appendages is designed and a decoupling method is applied to decouple T-foil and flap, the attack angles of T-foil and flap are obtained in real-time, and the mathematical simulation verified the effect of the decoupling method. Finally, every hardware parts are selected and composed, then, the hardware of the control system is realized and installed on the trimaran, in water tank experiment, the controller was verified in water tank experiment and the experiment results show that it has a good vertical stabilization effect for the trimaran.

A Method of a Trimaran Vertical Movements Reduction Control and Hardware Realization