| Under the assumption of Fudide-Krylov, mathematical model of the six-degree-of-freedom motion of the ship on the surface of sea is established. The model is constructed and calculated based on the separation modeling theory in the static and moving coordinate systems. The main contents of the paper include: modeling wind, wave, and flow separately, and then performing vector superposition, and further constructing a simplified mathematical model of six-degree-of-freedom ship motion under the combined action of wind and waves. The purpose of this work is to achieve real-time simulation. Based on the Simulink and V-Realm Builder, namely virtual reality technology in MATLAB, we create the ship movement model, the sea surface environment and the ship's geometric model. The visual simulation of the ship's six degrees of freedom movement is given under three kinds of situations. The ship's rotation path and movement trajectory are described when there is wind and no waves, there is wind and no waves, and there is wind and wave. The research results can provide the basis for further research on the accurate prediction of the acoustic scattering characteristics of dynamic targets. |
