序贯起爆参数对定向战斗部毁伤效能的影响

张浩宇; 张树凯; 程立; 李元; 温玉全

doi:10.11858/gywlxb.20210836

序贯起爆参数对定向战斗部毁伤效能的影响

doi: 10.11858/gywlxb.20210836

张浩宇^1,,
张树凯¹,
程立¹,
李元²,
温玉全^1,*, ,

1.
北京理工大学爆炸科学与技术国家重点实验室，北京　100081
2.
西北工业大学航空学院，陕西西安　710072

基金项目: 国家自然科学基金委员会-中国工程物理研究院NSAF联合基金（U1530135）

详细信息

作者简介:
张浩宇（1996－），男，硕士研究生，主要从事战斗部毁伤效应研究.E-mail：zhy19961018@163.com

通讯作者:
温玉全（1965－），男，博士，副教授，主要从事火工系统理论与爆炸毁伤技术研究.E-mail：wyquan@bit.edu.cn

中图分类号: O389; TJ55
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出版历程
- 收稿日期: 2021-06-30
- 修回日期: 2021-07-06

Influence of Sequential Initiation Parameters on Damage Effectiveness of Aimed Warhead

ZHANG Haoyu^1
,,
ZHANG Shukai¹,
CHENG Li¹,
LI Yuan²,
WEN Yuquan^{1,*
, ,}

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
Aeronautical Engineering Institute, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China

摘要

摘要: 为提高定向战斗部的毁伤效能，明确序贯起爆参数对定向战斗部毁伤效能的影响，运用LS-DYNA有限元程序，采用破片速度差累加和飞散角累加的方法，研究了不同序贯起爆参数下破片初始威力参数，利用毁伤概率法，计算了不同序贯起爆参数下战斗部对地面军用车辆的毁伤效能。结果表明：起爆线个数和起爆线夹角主要影响破片速度大小，起爆延时时间主要影响破片速度大小和飞散角正负占比。相对于偏心一线和三线序贯起爆，偏心两线序贯起爆在落高为7～9 m时有7.5～25.0 m²的毁伤面积。当起爆线夹角由30°增大到120°，落高为4～8 m时，战斗部对地面军用车辆的毁伤面积降低3.9%～60.3%。序贯起爆的延时时间由零增加到0.75倍的相邻起爆点间爆轰波传播时间，落高为4～8 m时，战斗部的毁伤面积增加8.4%～87.2%。当起爆方式采用偏心两线序贯起爆，起爆线夹角取30°～60°，延时时间取0.50～0.75倍的相邻起爆点间爆轰波传播时间时，破片战斗部对地面军用车辆目标具有较好的毁伤效能。
- 定向战斗部 /
- 序贯起爆 /
- 毁伤效能 /
- 毁伤面积 /
- 破片
Abstract: In order to improve the damage effectiveness of aimed warhead, the influence of sequential initiation parameters on damage effectiveness of aimed warhead is studied. The initial power parameters of fragments under different sequential initiation parameters are studied by using LS-DYNA finite element program, methods of fragment velocity difference accumulation and dispersion angle accumulation. The damage probability method is used to calculate the damage effectiveness of warhead to ground military vehicles under different sequential initiation parameters. The results show that the number of initiation lines and the angle between initiation lines mainly affect the fragment velocity, and the initiation delay time mainly affects the fragment velocity and the positive and negative proportion of the dispersion angle. Compared with the eccentric one line and three lines sequential initiation, the damage area of eccentric two lines sequential initiation is 7.5–25 m² when the drop height is 7–9 m. When the angle of initiation line increases from 30° to 120°, the damage area of warhead to ground military vehicles is reduced by 3.9%–60.3% at the falling height of 4–8 m. The delay time of sequential initiation increases from 0 to 0.75 times of the propagation time of detonation wave between adjacent initiation points, and the damage area of warhead increases by 8.4%–87.2% when the drop height is 4–8 m. In the initiation mode, by adopting eccentric two lines sequential initiation, the angle between initiation lines of 30°–60°, and the delay time of 0.50–0.75 times of the detonation wave propagation time between adjacent initiation points, the fragment warhead has good damage efficiency to the ground military vehicle target.
- aimed warhead /
- sequential initiation /
- damage effectiveness /
- damage area /
- fragment

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图 1 战斗部结构（单位：mm）

Figure 1. Warhead structure (Unit: mm)

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图 2 战斗部的有限元模型

Figure 2. Finite element model of warhead

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图 3 战斗部落地示意图

Figure 3. Schematic diagram of the warhead landing

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图 4 破片的飞行轨迹及落点

Figure 4. Flight trajectory and falling point of fragments

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图 5 起爆点的布置

Figure 5. Layouts of initiation points

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图 6 破片速度云图

Figure 6. Cloud chart of fragment velocity

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图 7 静爆状态下所研究的破片区域

Figure 7. Fragmentation area studied under static explosion state

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图 8 破片威力参数

Figure 8. Fragment power parameters

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图 9 毁伤面积和有效破片个数

Figure 9. Damage area and number of effective fragments

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图 10 破片速度云图

Figure 10. Cloud chart of fragment velocity

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图 11 破片威力参数

Figure 11. Fragment power parameters

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图 12 毁伤面积和有效破片个数

Figure 12. Damage area and number of effective fragments

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图 13 破片速度云图

Figure 13. Cloud chart of fragment velocity

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图 14 破片威力参数

Figure 14. Fragment power parameters

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图 15 毁伤面积和有效破片个数

Figure 15. Damage area and number of effective fragments

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表 1 Comp. B炸药参数

Table 1. Parameters of Comp. B explosive

$\,\rho{_0}$/(g·cm⁻³)	p_CJ/GPa	D_CJ/(m·s⁻¹)	A/GPa	B/GPa	R₁	R₂	$\omega $
1.717	29.5	7890	524.23	7.678	4.2	1.1	0.34

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表 2 空气的材料参数

Table 2. Parameters of air

$\,\rho{_0}$/(kg·m⁻³)	C₁	C₂	C₃	C₄	C₅
1.29	0	0	0	0.4	0.4

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表 3 衬筒、外壳及端盖的材料参数

Table 3. Parameters of liner, shell and end cap

Component	$\,\rho{_0}$/(g·cm⁻³)	Elastic modulus/GPa	Poisson’s ratio	Yield limit/GPa	n
Liner	2.70	72	0.33	0.310	0.7
Shell, end cap	7.83	210	0.30	0.355	1.0

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表 4 破片的材料参数

Table 4. Parameters of fragment

$\,\rho{_0}$/(g·cm⁻³)	Young’s modulus/GPa	Poisson’s ratio
17.51	117	0.22

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表 5 不同起爆线个数条件下破片的性能参数

Table 5. Fragment performance parameters under different numbers of initiation lines

Initiation line	v_max/(m·s⁻¹)	Velocity gain/%	$\delta $⁺/%	$\delta $⁻/%
Central single point	2023.6	0	20.1	79.9
Sequential one line	2234.7	10.4	23.4	76.6
Sequential two lines	2297.9	13.6	21.6	78.4
Sequential three lines	2315.7	14.4	21.4	78.6

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表 6 不同起爆线夹角的破片性能参数

Table 6. The fragment performance parameters under different initiation line angles

β/(°)	v_max/(m·s⁻¹)	Velocity gain/%	$\delta $⁺/%	$\delta $⁻/%
30	2265.2	11.9	22.9	77.1
45	2292.8	13.3	22.1	77.9
60	2297.9	13.6	21.6	78.4
90	2286.3	13.0	22.6	77.4
120	2218.4	9.6	23.2	76.8

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表 7 不同起爆线延时时间的破片性能参数

Table 7. Fragment performance parameters under different initiation delay time

T	v_max/(m·s⁻¹)	Velocity gain/%	$\delta $⁺/%	$\delta $⁻/%
0	2295.8	13.5	50.5	49.5
0.25t	2346.7	16.0	25.4	74.6
0.50t	2297.9	13.6	21.6	78.4
0.75t	2221.3	9.8	19.6	80.4

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参考文献(20)

[1]	崔瀚, 张国新. 定向战斗部研究现状及展望 [J]. 飞航导弹, 2019(3): 84–89. CUI H, ZHANG G X. The status and prospect of aimed warhead [J]. Aerodynamic Missile Journal, 2019(3): 84–89.
[2]	LI W, HUANG G Y, FENG S S. Effect of eccentric edge initiation on the fragment velocity distribution of a cylindrical casing filled with charge [J]. International Journal of Impact Engineering, 2015, 80: 107–115.
[3]	WANG L, HAN F, ZHOU Q. The projection angles of fragments from a cylindrical casing filled with charge initiated at one end [J]. International Journal of Impact Engineering, 2017, 103: 138–148. doi: 10.1016/j.ijimpeng.2017.01.012
[4]	HUANG G Y, LI W, FENG S S. Fragment velocity distribution of cylindrical rings under eccentric point initiation [J]. Propellants, Explosives, Pyrotechnics, 2015, 40: 215–220. doi: 10.1002/prep.201400180
[5]	WANG M, LU F Y, LI X Y, et al. A formula for calculating the velocities of fragments from velocity enhanced warhead [J]. Propellants, Explosives, Pyrotechnics, 2013, 38(2): 232–237. doi: 10.1002/prep.201200025
[6]	LI Y, LI Y H, WEN Y Q. Radial distribution of fragment velocity of asymmetrically initiated warhead [J]. International Journal of Impact Engineering, 2017, 99: 39–47. doi: 10.1016/j.ijimpeng.2016.09.007
[7]	王树山, 马晓飞, 隋树元, 等. 偏心多点起爆战斗部破片飞散实验研究 [J]. 北京理工大学学报, 2001, 21(2): 177–179. doi: 10.3969/j.issn.1001-0645.2001.02.008 WANG S S, MA X F, SUI S Y, et al. Experimental research on fragments dispersion of the warhead under asymmetrical multi-spots initiation [J]. Journal of Beijing Institute of Technology, 2001, 21(2): 177–179. doi: 10.3969/j.issn.1001-0645.2001.02.008
[8]	叶小军, 韩玉, 陈庆宝. 偏心起爆战斗部速度增益的数值模拟及实验 [J]. 火炸药学报, 2009, 32(3): 29–34. doi: 10.3969/j.issn.1007-7812.2009.03.009 YE X J, HAN Y, CHEN Q B. Numerical simulation and experiment of velocity gains on the non-central detonation warhead [J]. Chinese Journal of Explosives & Propellants, 2009, 32(3): 29–34. doi: 10.3969/j.issn.1007-7812.2009.03.009
[9]	兰志, 杨亚东, 韩玉. 起爆方式对偏心式定向战斗部破片速度分布的影响研究 [J]. 弹箭与制导学报, 2010, 30(3): 159–161. doi: 10.3969/j.issn.1673-9728.2010.03.047 LAN Z, YANG Y D, HAN Y. Research on the distribution of fragment velocity of a eccentric initiation warhead by initiation mode [J]. Journal of Projectiles, Rocks, Missiles and Guidance, 2010, 30(3): 159–161. doi: 10.3969/j.issn.1673-9728.2010.03.047
[10]	张博, 李伟兵, 李文彬, 等. 偏心起爆战斗部随机破片数值仿真 [J]. 高压物理学报, 2012, 26(4): 442–448. doi: 10.11858/gywlxb.2012.04.013 ZHANG B, LI W B, LI W B, et al. Numerical simulation of the dispersion of random fragments under asymmetrical initiation [J]. Chinese Journal of High Pressure Physics, 2012, 26(4): 442–448. doi: 10.11858/gywlxb.2012.04.013
[11]	武敬博, 苟瑞君, 郑俊杰, 等. 六棱柱形战斗部预制破片驱动的数值模拟与试验 [J]. 火炸药学报, 2016, 39(3): 89–94. WU J B, GOU R J, ZHENG J J, et al. Numerical simulation and experiment of premade fragments droved by hexagonal prism shaped warhead [J]. Chinese Journal of Explosives & Propellants, 2016, 39(3): 89–94.
[12]	LI Y, WEN Y Q. Simulation on damage effectiveness of hexagonal prism aimable warhead with multi-point synchronous initiations [J]. Journal of Beijing Institute of Technology, 2014, 23(1): 1–7.
[13]	LI Y, WEN Y Q. Experiment and numerical modeling of asymmetrically initiated hexagonal prism warhead [J]. Advances in Mechanical Engineering, 2017, 9(1): 1–14.
[14]	刘琛, 李元, 李燕华, 等. 偏心起爆方式对棱柱形定向战斗部破片飞散规律的影响 [J]. 含能材料, 2017, 25(1): 63–68. doi: 10.11943/j.issn.1006-9941.2017.01.011 LIU C, LI Y, LI Y H, et al. Influence of eccentric initiation ways on fragment dispersion rule of prismatic aimable warhead [J]. Chinese Journal of Energetic Materical, 2017, 25(1): 63–68. doi: 10.11943/j.issn.1006-9941.2017.01.011
[15]	南宇翔, 蒋建伟, 王树有, 等. 子弹药落地冲击响应数值模拟及实验验证 [J]. 振动与冲击, 2013, 32(3): 182–187. doi: 10.3969/j.issn.1000-3835.2013.03.036 NAN Y X, JIANG J W, WANG S Y, et al. Numerical simulation and test for impact response of submunitions drop [J]. Journal of Vibration and Shock, 2013, 32(3): 182–187. doi: 10.3969/j.issn.1000-3835.2013.03.036
[16]	刘彦, 黄风雷, 吴相彬. 杀爆战斗部对导弹阵地的毁伤效能研究 [J]. 北京理工大学学报, 2008, 28(5): 385–387. LIU Y, HUANG F L, WU X B. A study on the damage effectiveness of blast-fragmentation warhead on attacking anti-aircraft missile positions [J]. Transactions of Beijing Institute of Technology, 2008, 28(5): 385–387.
[17]	黄正祥, 祖旭东. 终点效应[M]. 北京: 科学出版社, 2014.
[18]	李元, 李艳华, 刘琛, 等. 爆轰波定向战斗部起爆参数研究 [J]. 含能材料, 2016, 24(9): 915–921. doi: 10.11943/j.issn.1006-9941.2016.09.017 LI Y, LI Y H, LIU C, et al. The initiation parameter of detonation wave aiming warhead [J]. Chinese Journal of Energetic Materical, 2016, 24(9): 915–921. doi: 10.11943/j.issn.1006-9941.2016.09.017
[19]	宋柳丽. 偏心起爆式定向战斗部破片速度分布及增益研究[D]. 南京: 南京理工大学, 2008. SONG L L. Study on fragment velocity distribution and enhancement of asymmetrically initiated aimable warhead [D]. Nanjing: Nanjing University of Science and Technology, 2008.
[20]	LI Y, XIONG S H, LI X G, et al. Mechanism of velocity enhancement of asymmetrically two lines initiated warhead [J]. International Journal of Impact Engineering, 2018, 122: 161–174. doi: 10.1016/j.ijimpeng.2018.07.011