Numerical Simulation of Disturbance by Double-Layer Explosive Reactive Armor with Wedged Flying-Plate on Jet
-
摘要: 为得到干扰聚能射流能力更好的爆炸反应装甲，在经典爆炸反应装甲的基础上，设计了一种双层楔形飞板爆炸反应装甲。利用ANSYS/LSDYNA-3D仿真软件对3种不同方案进行了模拟计算，分别对各方案中飞板飞行形态、逃逸射流特性、射流的动能变化以及聚能射流对靶板的侵彻深度进行了分析。结果表明：夹层炸药引爆后，楔形飞板在向外飞出的同时具有一定的旋转特征，合理的摆放结构能够增大飞板与射流的作用面积；聚能射流在穿过反应装甲后，动能急剧下降，穿深能力降低，方案二聚能射流侵彻深度最浅，方案三次之，方案一最深，表明方案二具有良好的防护效果。对楔形飞板的研究丰富了爆炸反应装甲的结构设计，为反应装甲的进一步研究提供了理论参考。Abstract: Based on the traditional explosive reactive armor (ERA), we designed a structure of double-layer ERA with wedged flying-plates, to achieve the best performance in jet disturbing.By using the simulation software ANSYS/LSDYNA-3D, we simulated 3 different schemes of ERA structures, and analyzed the flying states of flying-layers, the character of escaped jet, the kinetic energy of jet and the penetrating depth of target by jet separately.The results show that the flying-layer tended to rotate after the sandwich explosive were detonated, and a proper structure arrangement helped to enlarge the active area between the jet and the flying-layer.The kinetic energy of jet declined greatly after across the ERA, resulting in a lower penetrating depth.Of the 3 schemes, Scheme 2 has the smallest penetrating depth by jet into the target, the next is Scheme 3, while Scheme 1 has the maximum penetrating depth, indicating that the structure of Scheme 2 has the best protection effect.This study on the wedged double-layer ERA enriched the structure design of ERA, providing theoretical reference for its further research.
-
Key words:
- wedged flying-layer /
- explosive reactive armor /
- shaped charge jet /
- penetration
-
图 1 模型示意(1.聚能战斗部；2.第1层ERA；3.第2层ERA；4.靶板)
Figure 1. Schematic of model (1.Shaped charge warhead; 2.First layer of ERA; 3.Second layer of ERA; 4.Target)
图 6 各方案不同时刻飞板的飞行形态
Figure 6. Pattern diagram of flying-plate for each scheme at different times
图 8 不同时刻各方案射流前导速度曲线
Figure 8. Variation of jet velocity fordifferent schemes at different times
图 9 不同时刻各方案逃逸射流形态
Figure 9. State of escaped jet for different schemes at different times
表 1 B炸药材料模型及状态方程参数
Table 1. Parameters of material model and equation of state of explosive B
ρ/(g·cm-3) pCJ/GPa D/(m·s-1) AJWL/GPa BJWL/GPa RJWL1 RJWL2 E0 1.717 29.5 7 980 524.2 7.678 4.2 1.1 0.085 
下载: 导出CSV
表 2 铜、钢材料模型及状态方程参数
Table 2. Parameters of material model and equation of state of copper and steel
Material ρ/(g·cm-3) G/GPa AJ-C/GPa BJ-C/GPa S1 S2 C/(m·s-1) V0 Copper 8.96 46 0.09 0.92 1.489 0 3 940 1 Steel 7.785 77.5 0.175 0.376 1.49 0 4 570 1
下载: 导出CSV
表 3 夹层炸药的材料模型及状态方程参数
Table 3. Parameters of material model and equation of state of sandwich explosive
ρ/(g·cm-3) G/GPa σY/GPa A/GPa B/GPa R1 R2 R3 1.712 3.54 0.2 524.2 7.678 778.1 -5.031×10-2 2.223×10-5 R5 R6 cP/(J·kg-1·K-1) cR/(J·kg-1·K-1) GROW2 AR2 ES1 ES2 11.3 1.13 10-3 2.487×10-3 300 1 0.222 0.333
下载: 导出CSV
-
[1] 王凤英.装甲防护技术的发展[J].测试技术学报, 2002, 16(2):144-147. http://www.cqvip.com/QK/98543X/200202/6495303.htmlWANG F Y.The development of amor fence[J].Journal of Test and Measurement Technology, 2002, 16(2):144-147. http://www.cqvip.com/QK/98543X/200202/6495303.html [2] 王凤英, 岳继伟, 王志远, 等.多层变角度反应装甲对聚能射流的干扰作用[J].高压物理学报, 2017, 31(5):566-572. doi: 10.11858/gywlxb.2017.05.009WANG F Y, YUE J W, WANG Z Y, et al.Interference effect of multi-layerd reactive armor with a variable angle on shaped charge jet[J].Chinese Journal of High Pressure Physics, 2017, 31(5):566-572. doi: 10.11858/gywlxb.2017.05.009 [3] 叶春辉, 刘天生.影响爆炸反应装甲两飞板运动过程的因素分析[J].科技信息, 2012(28):117. http://mall.cnki.net/magazine/Article/KJXX201228102.htmYE C H, LIU T S.Analysis of factors affecting explosive reactive armor moving process of two flying plates[J].Science and Technology Information, 2012(28):117. http://mall.cnki.net/magazine/Article/KJXX201228102.htm [4] 甄金朋, 刘天生, 张硕, 等.爆炸反应装甲驱动飞板运动的数值模拟[J].火炸药学报, 2010, 33(2):78-81. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hzyxb201002020ZHEN J P, LIU T S, ZHANG S, et al.Numerical simulation of the flyer plate propelled by explosive reactive amor[J].Chinese Journal of Explosive and Propellants, 2010, 33(2):78-81. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hzyxb201002020 [5] 李歌, 王凤英, 刘天生.爆炸反应装甲干扰穿甲弹的试验研究[J].火炸药学报, 2010, 33(2):50-52. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=bgxb201002013&dbname=CJFD&dbcode=CJFQLI G, WANG F Y, LIU T S.Experimental study on explosive reactive amor disturbing penetrators[J].Chinese Journal of Explosive and Propellants, 2010, 33(2):50-52. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=bgxb201002013&dbname=CJFD&dbcode=CJFQ [6] 黄鹤, 刘炜, 陈建申.爆炸反应装甲含能材料的发展及探索[J].兵工自动化, 2013, 32(1):55-57. doi: 10.7690/bgzdh.2013.01.017HUANG H, LIU W, CHEN J S.Explosive reactive armor of energetic materials development and exploration[J].Ordnance Industry Automation, 2013, 32(1):55-57. doi: 10.7690/bgzdh.2013.01.017 [7] 毛东方, 李向东, 宋柳丽.V型夹层炸药对射流干扰的数值模拟[J].爆炸与冲击, 2008, 28(11):86-91. http://www.cqvip.com/Main/Detail.aspx?id=26640867MAO D F, LI X D, SONG L L.Numerical simulation of disturbance by sandwich explosive on jet[J].Explosion and Shock Waves, 2008, 28(11):86-91. http://www.cqvip.com/Main/Detail.aspx?id=26640867 [8] 刘宏伟, 夏松林, 赵靖.V形反应装甲与射流作用过程分析[J].兵器材料科学与工程, 2011, 34(4):20-22. http://www.cqvip.com/QK/95120X/201104/38832989.htmlLIU H W, XIA S L, ZHAO J.Interaction process between jet and V-shaped double ERA[J].Ordnance Material Science and Engineering, 2011, 34(4):20-22. http://www.cqvip.com/QK/95120X/201104/38832989.html [9] 吴成, 蒋建伟, 冯顺山, 等.爆炸反应装甲运动规律的数值仿真及研究[J].兵工学报, 2002, 23(1):35-38. http://d.wanfangdata.com.cn/Periodical_bgxb200201009.aspxWU C, JIANG J W, FENG S S, et al.A study on the moving features of explosive reactive armor by numerical simulation and experiments[J].Acta Armamentarii, 2002, 23(1):35-38. http://d.wanfangdata.com.cn/Periodical_bgxb200201009.aspx [10] PAIK S H, KIM S J, YOO Y H, et al.Protection performance of dual flying oblique plates against a yawed long-rod penetrator[J].International Journal of Impact Engineering, 2007, 34(8):1413-1422. doi: 10.1016/j.ijimpeng.2006.06.006 [11] MAYSELESS M.Effectiveness of explosive reactive armor[J].Journal of Applied Mechanics, 2011, 78(5):1-11. http://adsabs.harvard.edu/abs/2011JAM....78e1006M [12] 黄正祥.聚能装药理论与实践[M].北京:北京理工大学出版社, 2014:376-387.HUANG Z X.Theory and practice of shaped charge[M].Beijing:Beijing Institute of Technology Press, 2014:376-387. [13] 武海军, 陈利, 王江波, 等.反应装甲对射流干扰的数值模拟研究[J].北京理工大学学报, 2006, 26(7):565-568, 605. http://industry.wanfangdata.com.cn/yj/Detail/Periodical?id=Periodical_bjlgdxxb200607001WU H J, CHEN L, WANG J B, et al.Numerical simulation on reactive armor disturbing jet[J].Transactions of Beijing Institute of Technology, 2006, 26(7):565-568, 605. http://industry.wanfangdata.com.cn/yj/Detail/Periodical?id=Periodical_bjlgdxxb200607001 [14] 姬龙, 黄正祥, 顾晓辉.双层楔形爆炸反应装甲飞板的运动规律[J].爆炸与冲击, 2013, 33(4):387-393. doi: 10.11883/1001-1455(2013)04-0387-07JI L, HUANG Z X, GU X H.Analysis and experimental study on the explosive field of double-layer explosive reactive armor[J].Explosion and Shock Waves, 2013, 33(4):387-393 doi: 10.11883/1001-1455(2013)04-0387-07 -
下载:
点击查看大图
图(10) / 表(3)
计量
- 文章访问数: 7517
- HTML全文浏览量: 3047
- PDF下载量: 269
