钢靶运动对弹丸侵彻效应影响的仿真研究

Simulation Study of Projectile Normal Penetration Lateral Movement Target

为了研究靶板侧向运动对弹丸正侵彻效应的影响,运用ANSYS/LS-DYNA模拟在不同攻角条件下弹丸对不同运动速度靶板的正侵彻效应。计算结果表明:无攻角条件下,当靶板侧向运动时,弹丸的剩余速度小于侵彻静止靶板时的剩余速度,有攻角时则相反;靶板运动速度对弹丸侵彻姿态影响比较明显,且弹轴与初始位置的最大偏转角随弹靶X方向的速度之差的增加而增加。本研究揭示了侵彻运动靶过程中弹丸侵彻姿态、速度等的变化规律,可为打击运动目标的有关弹药设计提供参考。

The effect of target lateral movement on the normal penetration was studied.Numerical simulations with ANSYS/LS-DYNA was conducted to analyze projectile penetrate target with different lateral velocity at different attack angles.Simulation reveals that the projectile residual velocity of penetrating lateral movement target is smaller than the residual velocity of penetrating immovable target at 0°attack angle,but the reverse is at attack angle;the gesture of projectile is markedly effected by lateral movement velocity,the maximal angle between projectile axes and initial position increases with the difference between projectile and target X-direction velocity.The law of projectile penetration gesture,velocity in penetration movement target is revealed,which is valuable to ammunition design of attacking movement target.