偏心罩在内嵌馈电结构EFP战斗部中的应用

李刚; 刘荣忠; 郭锐; 张利

doi:10.11858/gywlxb.2015.06.005

偏心罩在内嵌馈电结构EFP战斗部中的应用

doi: 10.11858/gywlxb.2015.06.005

李刚^1,,
刘荣忠^1,*, ,,
郭锐¹,
张利²

1.
南京理工大学机械学院，江苏南京 210094
2.
东风机电厂，安徽合肥 231200

详细信息

作者简介:
李刚(1978—), 男，博士研究生，主要从事聚能战斗部研究.E-mail:jonesxlll@163.com

通讯作者:
刘荣忠(1955—), 男，博士，教授，主要从事灵巧弹药研究.E-mail:liurongz@mail.njust.edu.cn

中图分类号: O358; TJ410.2
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出版历程
- 收稿日期: 2013-02-06
- 修回日期: 2013-03-31

Eccentric Liner in the Amelioration of EFP Warhead Design with Embedded Feed Structure

LI Gang^1
,,
LIU Rong-Zhong^{1,*
, ,},
GUO Rui¹,
ZHANG Li²

1.
Nanjing University of Science and Technology, Mechanical School, Nanjing 210094, China
2.
Dongfeng Machinery Factory, Hefei 231200, China

摘要

摘要: 采用中间馈电布局的毫米波敏感体制末敏弹，需要将部分敏感器件嵌入弹载爆炸成型弹丸(EFP)战斗部的装药内，改变了装药结构并影响了爆轰波的传播，给EFP的成型过程带来了较大的负面影响。为了调整药型罩的壁厚分布，进而对药型罩的压合过程施加影响，设计了偏心药型罩结构并配用于EFP战斗部，以控制药型罩完全向后翻转，使其形成大长径比的成型弹丸。实验中测得的EFP成型及侵彻结果基本符合数值模拟的预期，证明配用偏心布局药型罩的有内嵌结构EFP战斗部，能够得到飞行稳定的大长径比成型弹丸，可以解决敏感器件内嵌给战斗部成型带来的负面影响。
- 末敏弹 /
- 爆炸成型弹丸 /
- 内嵌结构 /
- 偏心药型罩 /
- 壁厚调整 /
- 翻转成型
Abstract: The terminal-sensitive ammunition fitted with a central feedback layout for millimeter wave sensitive system needs to be embeded with some sensitive devices in the charge of EFP (Explosively formed penetrator) warhead, resulting in changing the charge structure, affecting observably the detonation wave propagation, and producing significant negative effects on the shaping process of EFP.In order to get a large L/D ratio of the penetrator, we proposed to use an eccentric spherical liner structure to adjust the thickness of the liner, which successfully changed the pressing process of the liner and made it turn backwards.The experimental shape parameters and speed indicators basically meet with the predicted results of the numerical simulation.With the eccentric spherical liner, EFP warhead can be formed with a large L/D ratio and good flight stability.This design removes the negative effects produced on the warhead shaping by the embeded sensitive devices.
- terminal-sensitive ammunition /
- EFP (explosively formed penetrator) warhead /
- embedded structure /
- eccentric liners /
- thickness adjusting /
- turning-and-shaping

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图 1 内嵌敏感器件EFP战斗部结构示意图

Figure 1. Schematic of EFP warhead with embedded sensitive device

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图 2 错位布局球缺罩结构示意图

Figure 2. Schematic of layout for eccentric hemispherical liner

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图 3 结构调整与定位方式示意图

Figure 3. Schematic of structure adjustmentand positioning

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图 4 EFP成型的连续过程

Figure 4. Forming process of EFP warhead

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图 5 EFP对100 mm厚603钢靶的侵彻模拟

Figure 5. Penetration simulation of EFP on the 100 mm-thick 603 armor steel

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图 6 实验靶道布置示意图

Figure 6. Schematic of the experimental layout

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图 7 第1枚EFP战斗部的着靶情况

Figure 7. Experimental results of the 1st EFP warhead

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图 8 第2枚EFP战斗部的着靶情况

Figure 8. Experimental results of the 2nd EFP warhead

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表 1 8701炸药的JWL状态方程参数

Table 1. JWL equation parameters of 8701 explosive

ρ/(g/cm³)	D/(km/s)	p_CJ/(GPa)	E₀/(kJ/cm³)	A/(GPa)	B/(GPa)	R₁	R₂	ω
1.7	8.315	29.5	8.5	854	620.49	4.6	1.35	0.25

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表 2 实验结果与数值模拟的对比

Table 2. Comparison between simulation and experimental results

EFP warhead	Diameter of holes on gauze targets/(mm)			Simulated diameter of EFP/(mm)	Penetration diameter/(mm)		Velocity of EFP/(m/s)
EFP warhead	Ⅰ	Ⅱ	Ⅲ	Simulated diameter of EFP/(mm)	Exp.	Sim.	Exp.	Sim.
1st	58±2	58±2	59±2	56	55±2	50	1 730	1 780
2nd	57±2	57±2	56±2	56	54±2	50	1 720	1 780

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参考文献(8)

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