定向战斗部破片飞散的数值模拟与试验研究

摘要

Fragments dispersion of an evolvable aimed warhead was studied with numerical simulation.The density and velocity distributions of fragments were obtained.The effects of different evolving attitudes of warhead on fragments’ scattering area were analyzed,and the range of optimal warhead shape was calculated.A test of explosion was performed to validate the correctness of the results of numerical simulation.The results showed that the evolvable aimed warhead has a higher damage-targeting performance.The results provided a reference for describing a warhead’s evolving process and the design of the second detonating.%利用数值模拟方法对展开型定向战斗部的破片飞散过程进行研究，获得了破片数目和速度的分布规律，对比分析了不同展开姿态对破片飞散区域的影响特性，总结得到了最优展开姿态的取值范围，并通过静爆试验验证了数值模拟结果的准确性。研究结果验证了展开型定向战斗部具有较高的定向毁伤效能，为战斗部展开过程及二次起爆设计提供了重要的参考依据。