Ship Maneuvering Motion And Its Study Of Virtual Simulation

With continued progress of ship research and development of the computer, virtual reality technology in the field of ship maneuverability is widely applied in ship building area. Virtual design, virtual manufacturing, virtual assembly etc. as 21 centuries of new manufacturing strategy have already attracted more and more attentions of universities, research institutes and enterprises, and these have become one of the key technologies in the new century of manufacturing. In design stage, it can analyze ship moving path and stance to simulate ship maneuvering motion with virtual reality technology, and then evaluate ship motion performance.Firstly, according to separate idea of MMG mathematical model, formulas of ship maneuvering of three DOF are built up. The curves of the thrust of propeller and the straight sailing resistance are fit by least-squares fitting method, and the mathematical model has been built up about the forces and moments acted on the ship's hull, propeller, rudder and their interrelationships are considered. In thismodel, the calculating method——Runge-Kutta method is applied to calculate theequation of maneuvering mathematical model, the tracks of the ship in different rudder angles are obtained to be prepared to simulation.Secondly, establish a model ship by using of 3D modeling software Multigen Creator. The using of a wide range of basic methods of operation provide examples for other modeling studies. Use texture technology to deal with the surface details. Different texture produces different visual effect.Thirdly, use the simulation modle LynX in Vega to establish virtual simulation and the ocean module is considered. The result shows different observation effects on different maneuvering conditions.