针对攻角影响战斗部侵彻效应问题,利用LS-DYNA3D非线性动力学仿真软件对单一动能战斗部在攻角条件下侵彻混凝土靶、随进战斗部在攻角条件下侵彻预置侵孔混凝土靶的过程进行了数值模拟,从剩余速度和剩余动能的角度探讨了攻角对战斗部侵彻效应的影响特性。结果表明,攻角会降低战斗部的侵彻效应,尤其会降低随进战斗部的侵彻效应,攻角为3°时,单一动能战斗部的侵彻效应降低约5%,随进战斗部的侵彻效应降低约7%。

Aimming at penetration effects of attack angel on earth penetrating warhead, penetration process of simple kinetic energy earth penetrating warhead penetrating intact concrete targets and follow-through tandem warhead penetrating concrete targets with simulative precursor holes were simulated by finite element soft LS-DYNA3D. Characteristics of attack angle influence on penetration effects were discussed by residuary velocity and residuary kinetic energy. The numerical simulation results show that attack angle markedly influences on penetration effect of earth penetrating warheads, especially on follow-through tandem earth penetrating warhead. Penetration effect of simple kinetic energy earth penetrating warhead descends about 3% at attack angle of 3 degree, and tandem earth penetrating warhead descends about 7%.