不同炸药及装药高度对聚能射流侵彻性能的影响

Effects of Different Explosives and Charge Height on Penetration Performance of Jets

为研究不同炸药及装药高度对聚能射流侵彻性能的影响,分析不同炸药及装药高度对聚能射流侵彻性能的影响。通过True Grid建模,LS-DYNA数值模拟计算,对在同一装药直径、装药高度时,不同炸药对聚能射流头部速度、侵彻后效靶板的能力进行对比;比较在同一装药直径、同种炸药时,不同装药高度对聚能射流头部速度、侵彻后效靶板的能力。仿真结果表明:奥克托今炸药压垮药型罩形成的聚能射流头部速度最大,侵彻后效靶板能力最强;装药高度的变化对奥克托今炸药压垮药型罩形成的聚能射流的头部速度,侵彻后效靶板的能力影响不明显。该研究结果对聚能装药设计具有一定参考价值。

To study effects of different explosives and charge height on penetration performance of shaped charge jets, and analyze the influence of different explosive and charge height on the penetration performance of the shaped charge jets. LS-DYNA is used for numerical simulation by modeling with True Grid. At the same charge diameter and the same height of the charge, the comparison of different explosives on the head velocity and the penetration of target behind the jet were made.With the same charge diameter, the same kind of explosives, different charge height of the jet head speed, the ability to penetrate the target after the target was compared. The simulation results showed that Octogen has the largest head velocity of the energy jet formed by the crushed drug cover; and the strongest ability of target penetration aftereffect. Impact of change of charge height of the formation of the energy of the head of the jet is not obvious. And the impact to penetrate the target is either. The study results have a certain reference value for the design of charge jets.