Design of Explosively Formed Projectile Liner with Small Radius and Experiment of Penetrating Multi-Layer Steel Target
-
摘要: 针对侵彻多层间隔钢靶的要求,开展了爆炸成型弹丸(EFP)实验装置设计和侵彻实验研究。采用曲面变厚度药型罩设计方法,设计了药型罩口径为60 mm的压拢型EFP实验装置,并进行了侵彻多层钢靶实验,采用闪光X射线技术,测得了EFP的形状和速度。实验结果表明:EFP具有速度适中、密实性良好、长径比较小的特点,在贯穿多层钢靶过程中性能稳定,未发生碎裂现象,达到了穿透6层厚度为6 mm、间距为2 m的钢靶的侵彻效果。Abstract: For special requirements of penetrating multi-layer steel target, a design of explosively formed projectile (EFP) and its experimental study have been carried out.A compressed EFP assembly with a 60 mm diameter of liner has been designed using the curved variable thickness liner design.The shape and velocity of the EFP when penetrating through the multi-layer steel target were measured with X-ray photography.According to the experimental results, the EFP shows the characteristics of moderate speed, good compactness and small length-radius ratio.In the process of penetrating multi-layer steel target, the EFP has stable performance, and smash phenomenon does not exist.The experimental results show that it can penetrate through the six-layer steel target with thickness of 6 mm and spacing of 2 m.
-
Key words:
- explosively formed projectile /
- compressed /
- liner /
- length-radius ratio /
- penetration /
- X-ray photography
-
[1] Weimann K. Performance of tantalum, copper, and iron EFP's against steel targets[C]//The 15th International Symposium on Ballistics. Jerusalem, Israel, 1995. [2] Murphy M, Weimann K, Doeringsfeld K, et al. Effect of explosive detonation wave shaping on EFP shape and performance, UCRL-JC-107088[R]. USA: Lawrence Livermore Laboratory, 1992. [3] Blache A, Weimann K. Generation of different detonation wave contours[C]//The 16th International Symposium on Ballistics. San Francisco, USA, 1996. [4] Jach K, Wlodarczyk E. 3D free particle computer modeling of explosive formation of projectiles[C]//The 16th International Symposium on Ballistics. San Francisco, USA, 1996. [5] Weikert C A, Gallagher P J. Ogive-nosed, finned, explosively-formed projectiles[C]//The 16th International Symposium on Ballistics. San Francisco, USA, 1996. [6] 余超志.导弹概论[M].北京: 北京工业学院出版社, 1986.Yu C Z. Introduction to Guided Missile[M]. Beijing: Beijing Industrial Institute Press, 1986. (in Chinese) [7] 崔秉贵.目标毁伤工程计算[M].北京: 北京理工大学出版社, 1995.Cui B G. Target Damage Engineering Calculation[M]. Beijing: Beijing Institute of Technology Press, 1995. (in Chinese)