含弹性适配器的运载器式潜射导弹分离研究

Research on separation of submarine-launched missile with elastic adapter

针对运载器式潜射导弹水面弹射分离问题,采用RNG k-ε湍流模型和VOF模型,基于分数容积障碍网格法,建立含适配器的运载器式潜射导弹水面分离多物理场耦合模型。在数值模型与实验对比验证其精度和有效性基础上,对运载器出水过程中不同的导弹弹射起始高度、初始姿态角对动平台分离特性影响进行了数值模拟,仿真结果表明:弹射过程中,弹射起始高度越大,运载器和导弹的位移与姿态角变化越大;运载器和导弹倾斜10°出水比倾斜5°出水,弹射过程中运载器和导弹的位移和姿态角变化更大,而且运载器和导弹的速度变化更慢。仿真方法和结果对工程应用具有参考价值。

The RNG k-εturbulence model and VOF model were used to establish the coupling model of multi physical field for surface separation of submarine-launched missile with adapter based on fractional volume obstacle grid method.On the basis of the comparison between the numerical model and the experiment to verify its accuracy and effectiveness,the influence of different ejection starting heights and initial attitude angels on the separation characteristics of the moving platform was numerically calculated.The simulation results show that the higher the launching starting height is,the greater the displacement and attitude angle of the launch vehicle and missile change during the ejection;the displacement and attitude angle of the launch vehicle and missile with 10°inclination are larger than those with 5°inclination,and the velocity of the launch vehicle and missile changes more slowly in the process of ejection.The simulation method and results have reference value for engineering application.