中心药抛撒金属颗粒群的初速计算与实验研究

doi:10.3969/j.issn.1000-1093.2012.05.008

兵工学报 ›› 2012, Vol. 33 ›› Issue (5): 556-559.doi: 10.3969/j.issn.1000-1093.2012.05.008

中心药抛撒金属颗粒群的初速计算与实验研究

陈亚红^1,2，白春华¹，刘意¹，李建平¹，王仲琦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.中北大学化工与环境学院，山西太原 030051)

收稿日期:2010-11-10 修回日期:2010-11-10 上线日期:2014-03-04
作者简介:陈亚红（1975—），男，讲师，博士

Experimental Study and Initial Velocity Calculation of Particles Dispersed by Center Explosive

CHEN Ya-hong^1,2, BAI Chun-hua¹, LIU Yi¹, LI Jian-ping¹, WANG Zhong-qi¹

(1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2.School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, Shanxi, China)

Received:2010-11-10 Revised:2010-11-10 Online:2014-03-04

摘要/Abstract

摘要： 中心药驱动下金属颗粒群的运动的形成机理与破片运动的形成机理不同，颗粒群初速不能直接应用计算破片初速的Gurney公式得到。中心药柱爆炸抛撒颗粒群的实验表明，颗粒的平均初速低于应用Gurney模型计算的结果。颗粒平均初速不仅与颗粒/炸药质量比有关，还与侧向损失、颗粒尺寸、颗粒材料的真实密度及颗粒间的孔隙率有关。在考虑以上4种因素的基础上对Gurney公式进行了改进，计算得到的颗粒初速与实验结果比较一致。改进后的Gurney公式可较好地用于中心药柱爆炸抛撒颗粒的平均初速计算。

关键词: 爆炸力学, 颗粒群, 平均初速, 经验公式

Abstract: There are some differences in dynamic mechanics between metal particle pack and metal fragments driven by explosive, and the velocity metal particles obtained differs from calculation of Gurney model, that imply the Gurney model can not be directly used to calculate the velocity of metal granular swarm driven by explosive. Metal granular swarm dispersed by cylinder explosive was investigated experimentally, and the result shows that the average initial velocity of particles is less than that calculated with Gurney model. Besides the mass ratio between granular swarm and explosive, other 4 factors including lateral effect, porosity, particle size, and true density of particle also affect average initial velocity of particles. Considering the 4 factors, Gurney model was modified to calculate average initial velocity of particles dispersed by explosive, and the result was in good agreement with experiment. The modified Gurney model can be used to the engineering calculations of average initial velocity of explosive dispersing metal granular.

Key words: mechanics of explosion, particle swarm, average initial velocity, empirical equation

中图分类号:

O389

陈亚红，白春华，刘意，李建平，王仲琦. 中心药抛撒金属颗粒群的初速计算与实验研究[J]. 兵工学报, 2012, 33(5): 556-559.

CHEN Ya-hong, BAI Chun-hua, LIU Yi, LI Jian-ping, WANG Zhong-qi. Experimental Study and Initial Velocity Calculation of Particles Dispersed by Center Explosive[J]. Acta Armamentarii, 2012, 33(5): 556-559.

参考文献

［1］ Zhang F, Frost D L, Thibault P A, et al. Explosive dispersal of solid particles [J]. Shock Waves, 2001, 10(6): 431-443.
[2] Zhang F, Thibault P A, Link R, et al. Shock interaction with solid particles in condensed matter and related momentum transfer[J]. Proceedings of the Royal Society of London: Series A, 2003, 459（2031）: 705-726.
[3] 罗艾民，张奇，李建平，等. 爆炸驱动作用下固体燃料分散过程的计算分析[J]. 北京理工大学学报, 2005, 25(2) : 103-107.
LUO Ai-min, ZHANG Qi, LI Jian-ping, et al. Computational analysis of dispersion process of explosively driven solid fuel [J]. Transactions of Beijing Institute of Technology, 2005, 25(2): 103-107. (in Chinese)
[4] 马天宝，孙远翔，宁建国，等. 双束聚焦式破片杀伤战斗部的数值模拟研究[J]. 弹箭与制导学报，2003, 13(4): 146-149.
MA Tian-bao, SUN Yuan-xiang, NING Jian-guo, et al. Numerical simulation of double-beam fragment focusing warhead[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2003, 13(4): 146-149. (in Chinese)
[5] 谭多望，曹仁义，王广军，等. 爆轰驱动对钨珠终点弹道性能的影响[J]. 爆炸与冲击，2008, 28(6): 481-487.
TAN Duo-wang, CAO Ren-yi, WANG Guang-jun, et al. Influence of detonation driving on terminal ballistic effects of tungsten spheres[J]. Explosion and Shock， 2008, 28(6): 481-487. (in Chinese)
[6] Jonas A Z, William P W. Explosive effects and applications[M]. New York: Springer-Verlag, 1998: 227-229, 247-248.
[7] 韩秀凤, 严楠, 蔡瑞娇. 对炸药驱动飞片的理论计算方法的分析与评价[J]. 火炸药学报,2005, 28(1): 63-66.
HAN Xiu-Feng, YAN Nan, CAI Rui-Jiao. Analysis and assessment on theoretical calculation methods for the velocity of explosive-driven flyer plate[J]. Chinese Journal of Explosives & Propellants, 2005, 28(1): 63-66. (in Chinese)

[1]	余雯君, 陈胜云, 邓树新, 于冰冰, 晋冬艳. 爆炸冲击波在变向通道中传播规律数值模拟[J]. 兵工学报, 2023, 44(S1): 180-188.
[2]	徐海斌，杨军，仵可，陈博，随亚光，王等旺. 光辐射起爆乙炔银-硝酸银光敏炸药同步性能[J]. 兵工学报, 2022, 43(11): 2791-2797.
[3]	吕映庆，陈南勋，武海军，赵宏远，张雪岩. 弹体高速侵彻超高性能混凝土靶机理[J]. 兵工学报, 2022, 43(1): 37-47.
[4]	武海军，张爽，黄风雷. 钢筋混凝土靶的侵彻与贯穿研究进展[J]. 兵工学报, 2018, 39(1): 182-208.
[5]	冉春，陈鹏万，李玲，张旺峰. 中高应变率条件下TC18钛合金动态力学行为的实验研究[J]. 兵工学报, 2017, 38(9): 1723-1728.
[6]	陈浩玉，洪仁楷，陈永涛，张世文，任国武，莫俊杰. 用于微层裂物质诊断的小型动量探针技术[J]. 兵工学报, 2017, 38(9): 1729-1735.
[7]	唐廷，周健南. 地震后地下受损拱结构的抗爆炸能力研究[J]. 兵工学报, 2017, 38(9): 1736-1744.
[8]	杨军，李焰，张德志，史国凯，张敏，刘文祥，王昭，熊琛. 光子多普勒测速仪与压杆相结合的冲击波反射压力测试技术[J]. 兵工学报, 2017, 38(7): 1368-1374.
[9]	刘俊，田宙，钟巍，谢淑红. 冲击波作用下单层钢化玻璃抗爆性能的数值模拟研究[J]. 兵工学报, 2017, 38(7): 1402-1408.
[10]	李勇，程远胜，张攀，刘均. 空中爆炸载荷下梯度波纹夹层板抗爆性能仿真研究[J]. 兵工学报, 2017, 38(6): 1131-1139.
[11]	赵天辉，高康华，王明洋，李斌，孙松，郭强. 方形容器爆燃泄放过程中的压力特性实验研究[J]. 兵工学报, 2017, 38(4): 722-727.
[12]	崔云霄，陈鹏万，郭保桥， David A. Cendón，周忠彬. 基于内聚裂纹模型的高聚物粘结炸药模拟材料动态断裂行为研究[J]. 兵工学报, 2017, 38(12): 2379-2385.
[13]	刘坚成，皮爱国，黄风雷. 反弹道斜撞击下自由梁结构响应研究[J]. 兵工学报, 2017, 38(11): 2117-2125.
[14]	武强，张庆明，龙仁荣，龚自正. 含能材料防护屏在球形弹丸超高速撞击下的穿孔特性研究[J]. 兵工学报, 2017, 38(11): 2126-2133.
[15]	任国武，郭昭亮，汤铁钢，苏红梅，温上捷，金山. 高应变率加载下金属柱壳断裂的实验研究[J]. 兵工学报, 2016, 37(1): 77-82.

中心药抛撒金属颗粒群的初速计算与实验研究

Experimental Study and Initial Velocity Calculation of Particles Dispersed by Center Explosive

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价