波浪对导弹垂直发射水弹道影响研究

摘要

During the process between launch and water-exit, sub-launched missile will suffer wave forces, and the wave forces will affect the missile water trajectory parameters to a considerable degree. A random wave model was built using the Pierson-Moscoswitz spectrum and the SWOP direction distributing function, furthermore, equations for calculating wave forces were derived in reference of the section-cutting theory. According to the characteristics of the wave randomness, a series of statistical simulation were carried out by using the Monte Carlo like method. The rules of wave effect to the maximum parameter deviations of the uncontrolled ballistics with the variation of depth were obtained, and maximum ballistics parameter deviations of different sea conditions and wave angles were given, with the changing law described. The simulation method and results have a certain reference value for engineering studies.%潜射导弹出水过程中受到海浪作用的扰动,对导弹水弹道参数产生一定影响.采用Pierson-M oscowitz频谱和SWOP方向分布函数构建了随机海浪模型,并根据切片理论给出了波浪力计算公式.根据波浪随机性的特点,借鉴蒙特卡洛法思想,利用建立的数学模型进行了统计法仿真,得出了波浪对导弹无控弹道参数最大偏差影响随深度变化的规律,且给出了不同海况和主浪向参数波浪影响下弹道参数最大偏差数值,阐述了其变化规律.仿真方法和结果对工程研究有一定参考价值.