基于六自由度的空投鱼雷雷伞系统建模仿真研究

Reseach of Modeling and Simulation of Airdrop Torpedo Parachute System Based on Six Free Degrees

空投鱼雷落点位置影响着鱼雷对目标的搜索概率,对空投鱼雷空中运动过程进行合理简化,建立了坐标系、坐标系转换矩阵、鱼雷空投六自由度运动模型,提出一种计算降落伞拉直段和充气段受力的方法。选取某型空投鱼雷进行测绘建模,得到全雷结构参数,基于Simulink进行不同初始投雷条件的仿真实验,得到了鱼雷入水参数以及受定常风影响的散布规律。仿真结果表明降落伞有效降低了鱼雷入水速度,并具有良好稳定性,为空投射表编制、实战应用提供理论支持。

The dropping location of the aerial torpedo affects the probability of the torpedo’s search for the target.The air motion process of the airborne torpedo is simplified reasonably,and the coordinate system,the transformation matrix of the coordinate system and the 6-DOF model of torpedo airdrop are established.A method for calculating the forces on the straightening and inflating sections of parachutes is presented.By selecting an aerial torpedo for surveying and modeling,the structural parameters of the torpedo are obtained.Simulation experiments of different initial dropping conditions are carried out based on Simulink.The parameters of torpedo entering water and the dispersion law under the influence of steady wind are obtained.The simulation results show that parachute can effectively reduce the speed of torpedo entering water and has good stability,which provides theoretical support for the compilation of air drop table and practical application.