多点起爆下鼓形战斗部的威力特性

李豪凯; 冯昱祥; 李元; 索涛

doi:10.11883/bzycj-2023-0317

多点起爆下鼓形战斗部的威力特性

doi: 10.11883/bzycj-2023-0317

李豪凯^1,,
冯昱祥¹,
李元^{1, 2, ,},
索涛^{1, 2}

1.
西北工业大学航空学院，陕西西安 710072
2.
西北工业大学极端力学研究院，陕西西安 710072

基金项目: 国家自然科学基金（12002178，12141203）

详细信息

作者简介:
李豪凯（1997－　），男，博士研究生，lihaokai@mail.nwpu.edu.cn

通讯作者:
李　元（1987－　），男，博士，副教授，panshi-boshi@163.com

中图分类号: O389
计量
- 文章访问数: 127
- HTML全文浏览量: 64
- PDF下载量: 130
- 被引次数: 0
出版历程
- 收稿日期: 2023-09-04
- 修回日期: 2024-02-06
- 网络出版日期: 2024-02-06
- 刊出日期: 2024-03-14

Power characteristics of drum-shaped warheads under multi-point detonations

LI Haokai^1
,,
FENG Yuxiang¹,
LI Yuan^{1, 2
, ,},
SUO Tao^{1, 2}

1.
School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China
2.
Institute of Extreme Mechanics, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China

摘要

摘要: 为调控对地弹药破片杀伤威力场，研究了一种鼓形战斗部在静爆和动爆下的威力特性。采用数值模拟研究了端面中心单点、中心单点两种起爆方式下，鼓形战斗部相较于同口径圆柱形战斗部在静爆下的破片威力特性及动爆下对地面装甲车辆目标的毁伤面积。在此基础上，调整鼓形战斗部起爆方式为偏心两线同时起爆、偏心两线序贯起爆及偏心两线同时-序贯起爆，计算了不同偏心起爆下鼓形战斗部静爆时的破片速度、飞散角和动爆时对车辆目标的毁伤面积及有效破片落地动能分布。研究表明，相比于同口径的圆柱形战斗部结构，鼓形战斗部的破片飞散角增大了55.98%，对地面军用车辆的毁伤面积最大增大了59.3%；相对于偏心两线同时起爆，偏心两线同时-序贯起爆的鼓形战斗部破片飞散角增大了18.0%，破片飞散的离散程度提高了11.48%；相对于装药中心单点起爆，偏心两线序贯起爆下鼓形战斗部的毁伤面积受炸高影响较小，在落角50°、落速200 m/s、炸高为9 m时的毁伤面积达47.15 m²。通过调整战斗部的结构和起爆方式，可有效增大破片的飞散角，增大破片对目标的覆盖面积，提高战斗部的毁伤效能。
- 破片 /
- 多点起爆 /
- 毁伤面积 /
- 鼓形战斗部 /
- 威力特性
Abstract: To adjust the fragment lethality field of the anti-ground ammunition, the paper studies the power characteristics of a drum-shaped warhead under static and dynamic detonation. Aiming at the ground armored vehicles, the damage efficiency of the drum-shaped warhead under different initiation modes is analyzed. The fragment power characteristics of a drum-shaped warhead under static detonation and the damage area to vehicle target under dynamic detonation are studied by numerical simulation under two initiation modes of end face center single point and center single point compared with cylindrical warhead of the same caliber. On this basis, further by adjusting the drum-shaped warhead initiation mode into three kinds of eccentric two-line synchronous initiation, eccentric two-line sequential initiation and eccentric two-line synchronous-sequential initiation. The fragment velocity and dispersion angle of the drum-shaped warhead during static detonation, the damage area to the vehicle target and the distribution of the effective fragment landing kinetic energy during dynamic detonation are calculated under different eccentric initiation. The effect of adjusting the detonating mode on the destruction power field of the fragment of the drum-shaped warhead is analyzed by comparing the power characteristics of the fragment of the drum-shaped warhead during the static detonation and the damage results of the vehicle target during dynamic detonation with the corresponding results under the end face center single-point initiation of the drum-shaped warhead. The results show that compared with the cylindrical warhead structure with the same caliber, the fragment dispersion angle of the drum-shaped warhead is increased by 55.98%, and the damaged area of the ground military vehicles is increased by the maximum 59.3%. Compared with the eccentric two-line synchronous initiation, the drum-shaped warhead with eccentric two lines synchronous-sequential initiation can increase the fragment dispersion angle by 18.0%, and increase the dispersion of fragments by 11.48%. Compared with the single-point initiation of charge center, the damage area of the drum-shaped warhead under eccentric two-line sequential initiation is less affected by the burst height, and the damage area reaches 47.15 m² when the falling angle is 50°, the falling velocity is 200 m/s and the burst height is 9 m. By adjusting the structure and the initiation mode of the warhead, the dispersion angle of fragments can be effectively increased, the coverage area of fragments to the target can be increased, and the damage efficiency of the warhead can be improved.
- fragment /
- multi-point initiation /
- damage area /
- drum-shaped warhead /
- power characteristics

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图 1 鼓形战斗部结构示意图

Figure 1. Structural diagram of drum-shaped warheads

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图 2 鼓形战斗部的有限元模型

Figure 2. A finite element model for drum-shaped warheads

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图 3 战斗部结构

Figure 3. Warhead structures

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图 4 单点起爆下战斗部破片威力参数

Figure 4. Fragment power parameters of warheads under a single-point detonation

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图 5 不同战斗部有效破片的打击线

Figure 5. Strike lines of effective fragments from different warheads

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图 6 单点起爆和不同炸高下的毁伤面积

Figure 6. Damage areas under a single-point detonation and different burst heights

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图 7 偏心两线起爆位置示意图

Figure 7. Schematic diagram of eccentric two-line initiation

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图 8 偏心两线同时-序贯起爆示意图

Figure 8. Schematic diagram of eccentric two-line synchoronous-sequential initiation

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图 9 破片速度云图

Figure 9. Cloud charts of fragment velocity

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图 10 偏心两线起爆下战斗部破片威力参数

Figure 10. Fragment power parameters of warheads under eccentric two-line detonation

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图 11 偏心两线起爆时不同炸高下的毁伤面积

Figure 11. Damage areas under eccentric two-line detonation and different burst heights

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图 12 有效破片落地的动能云图

Figure 12. Kinetic energy cloud images of effective fragment landing

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表 1 战斗部装药及球形破片质量

Table 1. The mass of warhead charges and spherical fragments

战斗部	战斗部形状	装药质量/g	球形破片质量/g	战斗部	战斗部形状	装药质量/g	球形破片质量/g
Ⅰ	圆柱形	9234.36	8954.24	Ⅲ	鼓形	8585	8608.72
Ⅱ	圆柱形	6364.08	7517.53	Ⅳ	鼓形	8585	8608.72

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表 2 战斗部单点起爆破片飞散角的统计参数

Table 2. Statistical parameters of the fragment dispersion angles for single-point detonation of warheads

战斗部	${\bar \sigma _{\text{a}}}$/(°)	s/(°)	战斗部	${\bar \sigma _{\text{a}}}$/(°)	s/(°)
Ⅰ	7.77	7.86	Ⅲ	12.12	13.85
Ⅱ	7.63	7.96	Ⅳ	12.44	14.49

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表 3 战斗部偏心起爆破片飞散角的统计参数

Table 3. Statistical parameters of the fragment dispersion angles for eccentric detonation of warheads

战斗部	${\bar \sigma _{\text{a}}}$/(°)	s/(°)	战斗部	${\bar \sigma _{\text{a}}}$/(°)	s/(°)
Ⅳ	12.44	14.49	Ⅵ	10.32	11.94
Ⅴ	8.44	10.98	Ⅶ	9.96	12.24

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