高速碰撞中攻角对动能弹侵彻多层间隔靶能力的影响

EFFECTS OF THE YAW ON KINETIC PROJECTILE PENETRATING INTO SPACED TARGETS IN HIGH IMPACT

为了能清楚地了解攻角对动能弹侵彻多层间隔靶能力的影响 ,采用LS DYNA3D动力有限元软件对有攻角条件下动能弹侵彻多层间隔靶进行了数值模拟研究 ,其模拟结果与实验结果的一致性较好 .研究表明 ,攻角对动能弹侵彻多层间隔靶的能力有一定影响 ,弹丸的侵彻能力随着攻角的增大而逐渐减小 ,速度越高这种变化趋势就越明显 ,但在攻角较小的情况下 。

In order to understand the influence of yaw, the kinetic projectile penetrating the spaced targets with yaws was simulated by using LS-DYNA3D. The simulation results are consistent with the experimental results. The study on this problem indicates that the yaw has influence on the ability of kinetic projectile penetrating the spaced targets. The penetrating ability of projectiles is decreased with the yaw increasing, and this phenomenon is prominent with the projectile's velocity increasing. Under the condition of little yaw, the influence of yaws on the penetrating ability of projectiles is weak.