论文部分内容阅读
为研究三角形截面易碎穿甲弹的靶后破碎特征,以相同横截面积大小和杆长的圆形截面易碎穿甲弹为参照对象,对两种不同截面弹丸进行着靶速度为800~1 200 m/s和着靶角度为0~45°的靶后破碎特征试验,并采用AUTODYN分析软件对相同工况进行数值模拟。结果表明:三角形截面相较于圆形截面,弹丸的破片增量由800 m/s时的15.9%提高到1 000 m/s时的30.9%;随着靶角度的增大,三角形截面相较于圆形截面,弹丸的破片增量由0°着角时的29.0%减小到45°着角时的23.6%。试验与仿真结果吻合较好。
In order to study the post-target crushing characteristics of the triangular cross-section fragile armor-piercing projectile, with reference to the fragile projectile-piercing round cross-section with the same cross-sectional area and rod length, the projectile velocity of two different cross-section projectiles was 800 ~ 1 200 m / s and target angle of 0 ~ 45 ° after the target crushing characteristics of the test and the use of AUTODYN analysis software for the same conditions for numerical simulation. The results show that the triangular cross section is larger than that of the circular cross section, and the fragment increment of the projectile increases from 15.9% at 800 m / s to 30.9% at 1000 m / s. As the target angle increases, In the circular section, the projectile fragments increase from 29.0% at 0 ° angle to 23.6% at 45 ° angle. The test and simulation results are in good agreement.