一体式多爆炸成型弹丸的成型及侵彻性能

曹明阳; 王金相; 郝春杰; 宋海平; 张亚宁; 周莲; 周楠; 唐奎

doi:10.11858/gywlxb.2017.04.018

一体式多爆炸成型弹丸的成型及侵彻性能

doi: 10.11858/gywlxb.2017.04.018

曹明阳^1,,
王金相^1,*, ,,
郝春杰²,
宋海平³,
张亚宁³,
周莲³,
周楠⁴,
唐奎¹

1.
南京理工大学瞬态物理国家重点实验室，江苏南京 210014
2.
晋西工业集团，山西太原 030027
3.
中国北方车辆研究院，北京 100072
4.
南京森林警察学院刑事科学技术系，江苏南京 210023

基金项目:

国家自然科学基金 11602113

国家自然科学基金 11672138

国家自然科学基金 11272158

瞬态物理国家重点实验室基金 9140C300405150C30005

江苏省自然科学基金 BK20151353

江苏省自然科学基金 BK20161055

详细信息

作者简介:
曹明阳(1992—), 男，硕士研究生，主要从事爆炸和冲击动力学研究.E-mail:912508296@qq.com

通讯作者:
王金相(1978—), 男，博士，研究员，博士生导师，主要从事爆炸和冲击动力学研究. E-mail:wjx@njust.edu.cn

中图分类号: O389; TJ414.1
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出版历程
- 收稿日期: 2017-01-11
- 修回日期: 2017-03-16

Formation and Penetration Performane of Multi-Explosviely Formed Projectiles

1.
Science and Technology on Transient Physics Laboratory, Nanjing University of Science and Technology, Nanjing 210014, China
2.
Jinxi Industries Group Co. LTD, Taiyuan 030027, China
3.
China North Vehicle Research Institute, Beijing 100072, China
4.
Criminal Science and Technology Department, Nanjing Forest Police Academy, Nanjing 210023, China

摘要

摘要: 为了提高一体式多爆炸成型弹丸(MEFP)的成型效果及侵彻能力，通过数值模拟分析了药型罩形状及壁厚、壳体厚度、起爆方式、破片支架对其成型及速度的影响，在此基础上给出了一种一体式MEFP战斗部，通过实验验证了该一体式MEFP战斗部结构的成型、散布特征及侵彻性能。结果表明：该战斗部可形成17枚聚能杆式弹丸(JPC)，且单个JPC形状、飞行方向稳定，飞散角为14.5°，与实验结果14.8°吻合良好；该MEFP战斗部可对12mm厚的603装甲钢靶板造成有效毁伤。
- 爆炸力学 /
- 多爆炸成型弹丸 /
- 侵彻 /
- 飞散角 /
- 数值模拟
Abstract: In order to improve the formation and penetration performance of multi-explosively formed projectiles (MEFP), we analyzed the influence of the charge cover (both its shape and wall thickness), the shell thickness, the explosive initiation modes as well as the fragments bracket on the projectiles formation effect and velocity by numerical simulation method.Based on our analysis, we proposed an integral MEFP warhead, and verified experimentally its formation process, scattered characteristics and penetration performance.The results show that the MEFP can form 17 jetting projectile charges (JPC), each with a good shape and stable flight direction.The calculated flying angle of the MEFP is 14.5°, which is well accord with the experimental result 14.8°.This MEFP warhead can effectively damage the 603 armor steel plate with a thickness of 12mm.
- explosion mechanics /
- multi-explosively formed projectiles (MEFP) /
- penetration /
- flying angle /
- numerical simulation

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图 1 1/2 MEFP战斗部及支架结构模型

Figure 1. 1/2 MEFP warhead and bracket structure

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图 2 3种药型罩成型

Figure 2. EFP formation for 3 kinds of charge covers

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图 3 不同起爆方式下EFP成型的对比

Figure 3. EFP formation under different initiation modes

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图 4 不同支架结构下MEFP成型效果图

Figure 4. MEFP formation with different brackets

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图 5 1/2 MEFP战斗部网格结构及其侵彻过程

Figure 5. 1/2 warhead grid structure and its penetrating process

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图 6 实验装置

Figure 6. Experimental devices

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图 7 603装甲钢靶板正面孔洞分布

Figure 7. Hole pattern in the front of 603 armored steel

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图 8 MEFP侵彻靶板速度的变化

Figure 8. Variation of MEFP penetration velocity

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表 1 3种药型罩结构尺寸及EFP速度

Table 1. Structural parameters of 3 kinds of charge covers and the EFP velocities

Structure	R/ (mm)	h₁/ (mm)	h₂/ (mm)	r₁/ (mm)	r₂/ (mm)	α₁/ (°)	α₂/ (°)	v/ (m/s)
Equal wall thickness conical	8	2.00	2.00			134	140	755
Equal wall thickness conical dome	8	2.00	2.00	11.35	11.35	136	136	818
Variable wall thickness conical dome	8	1.64	2.00	11.25	12.23	134	140	958

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表 2 壳体厚度与EFP速度的关系

Table 2. EFP velocity vs. shell thickness

Shell thickness/(mm)	EFP velocity/(m/s)
0	891
2	928
4	934
6	941
8	945

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表 3 不同起爆方式下的EFP速度及MEFP飞散角

Table 3. EFP velocity and MEFP flying angle under different initiation modes

Initiation modes	EFP velocity/(m/s)		Flying angle/(°)
Initiation modes	Center	Outer-ring	Flying angle/(°)
Point initiation	959	395	45.72
Surface initiation	1290	1240	0.56

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表 4 不同支架结构下EFP的速度及MEFP飞散角

Table 4. EFP velocity and MEFP flying angle with different brackets

Bracket	EFP velocity/(m/s)			Flying angle/(°)
Bracket	Center	Middle	Outer-ring	Center	Middle	Outer-ring
Plane bracket	1300	1230	1140	0	8.3	15.6
Curve bracket	1330	1350	1410	0	16.2	28.0

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表 5 MEFP战斗部各位置弹丸的飞散角

Table 5. MEFP flying angle of projectiles at different locations

EFP location	Flying angle (Sim.)/(°)	Flying angle (Exp.)/(°)	Error/(%)
Center	0	0	0
Middle	8.4	7.9	6.40
Outer-ring	14.5	14.8	2.01

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表 6 孔洞大小及散布距离

Table 6. Hole size and distribution range

Hole No.	Hole size			Distribution range
Hole No.	Sim./(cm)	Exp./(cm)	Error/(%)	Sim./(cm)	Exp./(cm)	Error/(%)
①	7.3	8.1	11	0	0	0
②	6.8	5.3	28	21	17	23
③	6.4	5.6	14	45	47	4

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参考文献(10)

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