Dynamic Modelling, Investigation of Manoeuvring Capability and Navigation Control of a Cargo Ship by using Matlab Simulation

摘要

In this paper a simplified dynamic analysis of a cargo ship using simulation and modelling are presented. Provided with mathematical equations dynamics of ship motion characteristics with several maneuvering capabilities are demonstrated with MATLAB & SIMULINK as simulation tool. The equations extended with acting thrust, resistance, steering and ruder forces are demonstrated for several maneuvers like on straight track coasting from full ahead to stop, turning actions A numerical application of fast time simulations on a freighter ship is given with graphical representations. Furthermore a simplified model for rolling motion of ship is introduced and some examples are simulated to explain the general effects of stability and wave parameters. The relation of these results to the more practical use for decision making to avoid resonance effects of ship in waves by loading operations or speed/course changes is demonstrated by means of simulation tool.