爆炸成型弹丸的速度是影响EFP战斗部侵彻能力的一个重要因素。基于量纲分析与数值计算相结合的方法建立了一种求解球缺罩EFP速度的计算模型,并对计算模型进行了算例分析。结果表明,该模型可以定量反映EFP速度与装药长度、药型罩内径、罩顶厚度之间的函数关系,其计算结果和算例的计算结果吻合较好,可以对球缺罩EFP战斗部的设计提供参考。

Velocity of explosively formed projectile is an important factor that influences penetration capability of EFP warhead.For hemispherical liner, a calculation model of EFP speed was established according to combination of dimensional analysis and numerical calculation, and the calculation model was verified by calculation examples.The results show that the model quantitatively reflects the function relationship between the EFP velocity and the length of the charge, the inner diameter, the thickness of the cover.The results of the calculation model are in good agreement with the results of the calculation examples, the model guides design of hemi-spherical liner EFP warhead.