针对在内弹道过程中随机因素引起的弹丸发射强度问题,以某型脱壳穿甲弹内弹道环境为例,应用ABAQUS软件对发射药燃烧环境的变化引起的膛压时序曲线的变化对弹丸发射强度的影响进行了仿真分析,仿真结果表明:在最大膛压相同的情况下,上升段变化速率越快,或在下降段变化速率越平缓,弹托应力越大,其发射强度越低。此结论可为相关工程设计提供理论参考,对弹丸在内弹道过程中的强度分析具有重要意义。

Aiming at the launch strength problems caused by random factors in the process of interior ballistic, taking a certain type of APDS interior ballistic environment as an example, the influence of the change of the chamber pressure time series curve caused by the change of propellant combustion environment on the projectile launching strength was simulated by ABAQUS software. The simulation result shows that under the same maximum chamber pressure, the faster the change rate in the ascending stage or the slower the change rate in the descending stage, the greater the sabot stress and the lower the emission intensity. This conclusion can provide theoretical reference for the relevant engineering design, and it is of great significance to the strength analysis of the projectile in the process of internal ballistic.