The Effect of Low-angle Yaw on the Armour Penetration of Light Armour-piercing Projectiles
The Effect of Low-angle Yaw on the Armour Penetration of Light Armour-piercing Projectiles
复制标题
小角度偏航对轻型穿甲弹穿甲弹的影响
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
I. Horsfall
中科院分区：
文献类型：
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作者：
C. Watson;L. Bates;I. Horsfall
在偏航冲击试验中研究了7.62x54r BS32穿甲弹对陶瓷面装甲的性能。在中间弹道阶段，通过对弹丸尾部倒角来诱导弹丸的控制偏航，在弹尾产生强大的非对称升力。高速视频记录了撞击前两个正交平面的偏航。炮弹偏航在约3.5m波长处呈正弦变化，在距炮口约10m处最大为8-14。采用Logistic回归方法确定了侵彻概率曲线和V50弹道极限速度，发现未偏航弹的极限速度为735 ms-1，而偏航弹的极限速度仅为685 ms-1。
The performance of 7.62x54r BS32 armour-piercing incendiary (API) projectiles against ceramic-faced armour is investigated in trials for yawed impacts. Controlled yaw of the projectile was induced by chamfering the rear of the projectile, producing strong asymmetric lift forces on the tail of the round during the intermediate ballistics phase. High-speed video recorded yaw in two orthogonal planes immediately before impact. Projectile yaw varied in a sinusoidal manner at approximately 3.5m wavelength with a maximum of 8-14 at approximately 10m from the muzzle. Logistic regression was used to determine the penetration probability curve and V50 ballistic limit velocity which was found to be 735 ms-1 for the un-yawed projectiles but only 685 ms-1 for the yawed projectiles.