有效射流结构模式的数值模拟

侯秀成; 蒋建伟; 陈智刚

doi:10.11883/1001-1455(2014)01-0035-06

有效射流结构模式的数值模拟

doi: 10.11883/1001-1455(2014)01-0035-06

侯秀成^{1, 2},
蒋建伟^1, ,,
陈智刚²

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.
中北大学机电工程学院，山西太原 030051

详细信息

作者简介:
侯秀成(1978—), 男, 博士研究生, 讲师

通讯作者:
Jiang Jian-wei, bitjjw@bit.edu.cn

中图分类号: O385; TJ410.33
计量
- 文章访问数: 3159
- HTML全文浏览量: 311
- PDF下载量: 413
- 被引次数: 0
出版历程
- 收稿日期: 2012-07-16
- 修回日期: 2012-12-17
- 刊出日期: 2014-01-25

Numerical simulation on structure modules of effective jet

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
College of Mechatronic Engineering, North University of China, Taiyuan 030051, Shanxi, China

摘要

摘要: 应用LS-DYNA程序及示踪点信息后处理方法，将典型小锥角药型罩沿母线方向分为4段，研究其微元在炸药爆炸驱动下的运动规律及有效射流结构模式。射流形成并稳定后，将罩质材料按速度大小分为6段，得到各段结构组成模式。结果表明，有效射流高速段由药型罩顶部材料组成，次高速段及中速段由罩中部及中下部材料组成，靠近罩底部约0.25倍罩高范围内的材料不形成射流，有效射流段为初始材料微元的管状分层分布形结构。
- 爆炸力学 /
- 结构模式 /
- 示踪点 /
- 有效射流 /
- 药型罩 /
- LS-DYNA程序
Abstract: The typical copper liner with a small cone angle was divided into four sections along the bus direction via the explicit finite software LS-DYNA, and the tracer point method was used to study the movement of the liner element and the structure modules of the effective metallic jet.The result indicates that the liner material may be divided into six sections by velocity interval after the jet formation and stabilization.The highest-velocity section is made of the top material inside the liner, and the mid-higher velocity section and the mid-velocity section made of the middle and lower half material inside the liner, respectively.In the height range of about 0.25times as high as the liner height away from the liner bottom, the liner material can not become effective jets.And the initial material elements of the liner are distributed as tubular in the effective jet.
- mechanics of explosion /
- structure module /
- tracer point /
- effective jet /
- liner /
- LS-DYNA

HTML全文

图 1 射流的动态示踪点示意图

Figure 1. Free tracer point of effective jet

下载: 全尺寸图片幻灯片

图 2 射流的静态示踪点示意图

Figure 2. Fixed tracer point of effective jet

下载: 全尺寸图片幻灯片

图 3 药型罩微元分段处理

Figure 3. Liner divided into sections

下载: 全尺寸图片幻灯片

图 4 药型罩内外表面材料示踪点轨迹

Figure 4. Trace line of tracer points at liner surface

下载: 全尺寸图片幻灯片

图 5 药型罩材料微元运动规律及相互作用关系

Figure 5. Moving pattern and interaction of material sections of liner

下载: 全尺寸图片幻灯片

图 6 分段切割罩杵体回收结果

Figure 6. Recovered slugs of sectional liner

下载: 全尺寸图片幻灯片

图 7 有效射流头部速度变化及速度分布曲线

Figure 7. Tip velocity and velocity distribution of effective jet

下载: 全尺寸图片幻灯片

图 8 有效射流及杵体的结构组成

Figure 8. Composition module of effective jet and slug

下载: 全尺寸图片幻灯片

参考文献(19)

[1]	肖川, 莫红军, 苏健军, 等.常规战斗部毁伤技术中的能量学问题分析[J].火炸药学报, 2011, 35(增刊): 1-5. Xiao Chuan, Mo Hong-jun, Su Jian-jun, et al. Energy problem of general warhead[J]. Chinese Journal of Explosives & Propellants, 2011, 35(suppl): 1-5.
[2]	Walters W P, Zukas J A. Fundamentals of shaped charges[M]. New York: Wiley Press, 1989.
[3]	于骐.某破甲弹药型罩各微元破甲效率[J].华东工程学院学报, 1978, (3): 119-125.
[4]	赵国志.某破甲弹杵体分析[J].华东工程学院学报, 1978(3): 107-118.
[5]	朱鹤荣, 龚良贵.破甲技术文集(二): 示踪点法杵体回收的实验室研究[M].北京: 国防工业出版社, 1982.
[6]	裴思行.聚能装药射流的结构模式研究[J].太原机械学院学报, 1986(3): 97-102. Pei Si-xing. A study for the jet constitutive mode of shaped charge[J]. Journal of Taiyuan Institute of Machinery, 1986(3): 97-102.
[7]	陈智刚, 侯秀成, 李守苍, 等.高速破甲弹破甲稳定性数值模拟与实验研究[J].弹箭与制导学报, 2009, 29(1): 124-127. doi: 10.3969/j.issn.1673-9728.2009.01.035 Chen Zhi-gang, Hou Xiu-cheng, Li Shou-cang, et al. Numerical simulation and experimental study of high-speed high explosive antitank projectile stability[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2009, 29(1): 124-127. doi: 10.3969/j.issn.1673-9728.2009.01.035
[8]	王成, 付晓磊, 宁建国.起爆方式对聚能射流性能影响的数值分析[J].北京理工大学学报, 2006, 26(5): 401-404. doi: 10.3969/j.issn.1001-0645.2006.05.006 Wang Cheng, Fu Xiao-lei, Ning Jian-guo. Numerical simulation of shaped charge jet formation under different ways of initiation[J]. Transactions of Beijing Institute of Technology, 2006, 26(5): 401-404. doi: 10.3969/j.issn.1001-0645.2006.05.006
[9]	蒋建伟, 帅俊峰, 李娜, 等.多模毁伤元形成与侵彻效应的数值模拟[J].北京理工大学学报, 2008, 28(9): 756-758. Jiang Jian-wei, Shuai Jun-feng, Li Na, et al. Numerical simulation of the formation of multimode EFP and its penetration effect to RHA[J]. Transactions of Beijing Institute of Technology, 2008, 28(9): 756-758.
[10]	侯秀成, 陈智刚.成型装药射流速度梯度数值模拟[J].弹箭与制导学报, 2009(6): 115-117. doi: 10.3969/j.issn.1673-9728.2009.06.031 Hou Xiu-cheng, Chen Zhi-gang. Numerical simulation of jet velocity gradient of shaped charge[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2009, 29(6): 115-117. doi: 10.3969/j.issn.1673-9728.2009.06.031
[11]	侯秀成, 蒋建伟, 陈智刚.某成型装药射流的数值模拟与射流转化率[J].火炸药学报, 2012, 35(2): 53-57. doi: 10.3969/j.issn.1007-7812.2012.02.012 Hou Xiu-cheng, Jiang Jian-wei, Chen Zhi-gang. Numerical simulation and conversion rate of jet from a shaped charge[J]. Chinese Journal of Explosives & Propellants, 2012, 35(2): 53-57. doi: 10.3969/j.issn.1007-7812.2012.02.012
[12]	隋树元, 王树山.终点效应学[M].北京: 国防工业出版社, 2000: 196-278.
[13]	Livermore Software Technology Corporation. LS-DYNA keyword user's manual: Version 971[M]. Livermore: Livermore Software Technology Corporation, 2007.
[14]	白金泽. LS-DYNA3D理论基础与实例分析[M].北京: 科学出版社, 2005.
[15]	时党勇, 李裕春.基于ANSYS/LS-DYNA 8.1进行显式动力分析[M].北京: 清华大学出版社, 2005.
[16]	北京理工大学八系.爆炸及其作用: 下册[M].北京: 国防工业出版社, 1979.
[17]	解永红, 陈智刚, 赵太勇.聚能装药药型罩作用机理的实验解析[J].弹箭与制导学报, 2004, 24(1): 54-55. doi: 10.3969/j.issn.1673-9728.2004.01.019 Xie Yong-hong, Chen Zhi-gang, Zhao Tai-yong. Experiment analysis about the process of working shaped charge liner[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2004, 24(1): 54-55. doi: 10.3969/j.issn.1673-9728.2004.01.019
[18]	奥尔连科Л П.爆炸物理学[M].孙承纬, 译. 3版.北京: 科学出版社, 2011.
[19]	王儒策, 赵国志.弹丸终点效应[M].北京: 北京理工大学出版社, 1993.