Research on Maneuverability Prediction and Motion Simulation of the Electric Propulsion Cruise

According to the MMG theory, the electric propulsion cruise with the all-direction propeller was researched. The calculation model of hull hydrodynamic forces and moments is expounded systematically and different calculation models of viscous hydrodynamic derivatives are discussed and compared, in order to select a model for high accuracy simulation computation. The flow chart of maneuvering numerical simulation calculation was given, and Respectively for Z control experiment and the rotary motion of the ship data comparative analysis, then the reliability of forecasting mathematical simulation model manipulation motion for validation. The result show that, for ships of Z manipulation and small rudder Angle rotary motion forecast more accurate and large rudder Angle of the turning motion simulation results is not ideal. The proposed ship maneuvering motion prediction method is suitable for the same type of ship.