海浪对水下垂直运动航行体出水姿态的影响分析

水下弹道是潜艇垂直发射导弹特有的一段弹道,导弹在航行过程中受到表层海水自然流动的影响,运动姿态发生复杂变化,其中,以海浪的影响最为明显。根据二维线性波理论在发射坐标系下建立了波浪模型,通过莫里森方程分析了海浪对水下垂直运动导弹的作用形式,建立了导弹水中运动数学模型,借助有限元思想,在Matlab/Simulink环境下仿真分析了不同航向和浪级下导弹水中运动姿态的变化规律,结论可为研究潜射导弹水中弹道提供参考和依据。

Research on the Influence of Waves on the Exceeding Attitude of the Vertically Launched Vehicle from Submarine

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.