某头罩分离装置分离全过程仿真计算

Simulation Calculation of the Whole Separation Process for a Shroud Separation Device

为解决头罩分离抛射过程中计算复杂的问题,提出一种对其分离全过程的仿真计算方法。借鉴小型火箭发动机的工作原理,通过燃气生成规律,建立分离装置的数学模型,分别对拉断螺钉剪断过程、头罩壳体运动过程和头罩分离装置侧抛过程进行分析,对头罩分离装置内弹道和轴、径向分离速度进行仿真计算。仿真结果表明:该方法对产品的设计具有参考价值,可以节约研发成本和研制周期。

In order to solve the complicated calculation problem in the process of separation and ejection of shroud separation device,a simulation calculation method of the whole separation process was proposed.Based on the working principle of the small rocket engine,the mathematical model of the separation device was established through the law of gas generation.The shearing process of the broken screw,the movement process of the shell and the side throwing process of the shroud separation device were analyzed respectively.The interior ballistic,the axial and radial separation speeds were simulated and calculated.The simulation results showed that the method has reference value for product design,which could save research and development cost and development cycle.