研究了某型低慢小无人机的易损性,给出了对其毁伤的等级划分和超压毁伤判据。通过理论与数值计算结果的对比,确定了数值模拟建立模型、选用数据的准确性。多工况分析计算得出:爆破战斗部对低慢小无人机的毁伤效应,随弹目距离的增加而迅速减弱;弹目距离相同,毁伤效应先随弹目交会角的增大而增大,到一定角度后,再随角度的增大而减小。计算得出不同交会角下,爆破战斗部毁伤低慢小无人机的临界距离。研究了双爆炸冲击波叠加对低慢小无人机的毁伤效应,结果显示冲击波叠加效应对超压峰值和正压时间均有较大幅度的增益,说明多爆炸冲击波叠加对低慢小无人机蜂群的毁伤效应,具有研究价值,以及为后续研究奠定了一定的基础。

The vulnerability of a low-slow-small UAV was studied, and its damage classification and overpressure damage criterion were given. Through the comparison of theoretical and numerical results, the accuracy of numerical simulation model and data selection was determined. Through multi condition analysis and calculation, it is concluded that the damage effect of explosive warhead on low-slow-small UAV decreases rapidly with the increase of missile-target distance;with the same missile-target distance, the damage effect first increases with the increase of missile-target intersection angle, and then decreases with the increase of angle after reaching a certain angle. The critical distances of blast warhead damaging low-slow-small UAV under different intersection angles were calculated. The damage effect of double explosion shock wave superposition on low-slow-small UAV was studied. The results show that the shock wave superposition effect has a significant gain in overpressure peak value and positive pressure time, indicating that the damage effect of multi explosion shock wave superposition on low-slow-small UAV swarm has research value and lays a certain foundation for subsequent research.