The underwater section is a unique trajectory of the submarine-launched missile. Due to the effects of marine factors, especially the waves, the attitude of the missile changes significantly during movement. According to the two-dimensional linear wave theory, the models of waves and missile underwater motion are established in the launching coordinates, and the wave forces on the vertically launched missile are analyzed in line with the Morison equation. Furthermore, through simulation with the FEM thought, the change rule of the missile attitude under different wave conditions is simulated and studied in the Matlab/Simulink environment. The conclusions can provide a reference for studying the underwater trajectory of the submarine launched missile. |