Active vibration and motion control of surface ships

In this paper, the active vibration and motion control of ocean surface vehicles is discussed. Since the problem is associated with the nonlinear and coupled system dynamics, and random environmental disturbance, nonlinear control techniques will be used for the solution. In the meantime, the understanding of the mechanisms of coupling and its effect on the performance in vibration and motion control is also emphasized so that physical insight can be gained through the control practice. This paper starts with a brief introduction of the ship kinematics and kinetics, disturbance and control inputs. Then nonlinear feedback control techniques are applied to solve various problems of vibration and motion control separately. Finally, the coupling of vibration and motion, their effect on control performance and simultaneous control of vibration and motion are discussed.