|本期目录/Table of Contents|

[1]陈曦,刘杰,杜忠华,等.两端起爆下曲率药型罩线性装药的成型特性[J].火炸药学报,2018,41(5):441-446.[doi:10.14077/j.issn.1007-7812.2018.05.003]
 CHEN Xi,LIU Jie,DU Zhong-hua,et al.Forming Characteristics of Linear Charge with Curved Liner under Two-end Initiation[J].,2018,41(5):441-446.[doi:10.14077/j.issn.1007-7812.2018.05.003]
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两端起爆下曲率药型罩线性装药的成型特性()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第5期
页码:
441-446
栏目:
出版日期:
2018-10-31

文章信息/Info

Title:
Forming Characteristics of Linear Charge with Curved Liner under Two-end Initiation
作者:
陈曦 刘杰 杜忠华 王康康
1. 南京理工大学机械工程学院, 江苏 南京 210094;
2. 桂林电子科技大学, 广西 桂林 541004
Author(s):
CHEN Xi LIU Jie DU Zhong-hua WANG Kang-kang
1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
2. Guilin University of Electronic Technology, Guilin Guangxi 541004, China
关键词:
线性成型装药曲率药型罩爆轰波对撞两端起爆线性爆炸成型弹丸LEFP
Keywords:
linear-shaped chargescurved linerdetonation wave collisiontwo-end inititationliner explosively formed penetratorLEFP
分类号:
TJ55;TJ410.3+33
DOI:
10.14077/j.issn.1007-7812.2018.05.003
文献标志码:
-
摘要:
为提高线性爆炸成型弹丸(LEFP)的威力,设计了一种带曲率结构的药型罩线性成型装药。采用数值模拟方法研究了两端起爆下LEFP成型过程及曲率半径对其影响规律,并进行了脉冲X光试验。结果表明,两端起爆时爆轰波对碰,使爆轰波有效地向LEFP运动方向汇聚,有利于曲率药型罩闭合,但曲率半径越大,越难闭合。LEFP稳定时形态良好,头部速度可达2 100 m/s,药型罩利用率约87%,试验结果验证了两端起爆下曲率药型罩线性装药形成大威力LEFP的可行性和有效性。
Abstract:
To improve the power of a linear explosively formed penetrator (LEFP), a new type of linear charge with curved structure was designed. Under a two-end initiation, the forming process of LEFP and influences of curvature radius on the process were investigated by numerical simulation method and a pulse X-ray photography experiment was carried out. The results show that the detonation wave collides under the two-end initiation, which causes the detonation wave to effectively converge toward the direction of LEFP movement and is beneficial to the closure of the curved liner. However, the larger the curvature radius, the harder the closure. LEFP is in good shape when it is stable, and the head velocity and utilization can reach 2 100 m/s and 87%, respectively. The test results verify the feasibility and effectiveness of the formation of a high-power LEFP for a linear charge with curved liner under the two-end initiation.

参考文献/References:

[1] ZHU Xu-qiang, WANG Feng, DU Zhong-hua, et al. Research on the formation mechanism and penetration power of multiple medel LEFP[J]. Chinese Journal of Explosives & Propellants(Huozhayao Xuebao), 2016, 39(4):61-67.
[2] LI Wei-bing, WANG Xiao-ming, LI Wen-bin. The effect of annular multi-point initiation on the formation and penetration of an explosively formed penetrator[J].International Journal of Impact Engineering, 2010, 37(4):414-424.
[3] Feng D L, Liu M B, Li H Q, et al. Smoothed particle hydrodynamics modeling of linear shaped charge with jet formation and penetration effects[J]. Computers & Fluids, 2013, 86:77-85.
[4] ZHANG Ming-cong, DU Zhong-hua, ZHOU Tao, et al. Influence of liner structural parameters on formation and penetration of the circumferential multiple linear explosive formation penetration[J]. Chinese Journal of Explosives & Propellants(Huozhayao Xuebao), 2016, 39(1):60-67.
[5] LI Peng, YUAN Bao-hui, LI Gang, et al. Study on formation of penetrators and damage of a new type of multiple linear explosively formed penetrator warhead[J]. Chinese Journal of Explosives & Propellants(Huozhayao Xuebao), 2017, 40(1):65-68, 80.
[6]NIE Peng-song, LIU Tian-sheng, RUAN Guang-guang, et al. Numerical simulation of linear explosively formed penetrator intercepted from rod penetrator[J]. Chinese Journal of Explosives & Propellants(Huozhayao Xuebao), 2018, 41(4):97-101.
[7]Lim S. Steady state equation of motion of a linear shaped charges liner[J]. International Journal of Impact Engineering, 2012, 44:10-16.
[8] ZU Xu-dong, HUANG Zheng-xiang, ZHU Chuan-sheng, et al. Study of detonation wave contours in EFP warhead[J]. Defence Technology, 2016, 12(2):129-133.
[9] Hull L M. Mach reflection of spherical detonation waves, LA-UR-93-2080[R]. Los Alamos:Los Alamos National Laboratory, 1993.

相似文献/References:

[1]周涛,王康康,杜忠华,等.起爆方式对线性成型装药爆炸威力的影响[J].火炸药学报,2014,37(2):37.
 ZHOU Tao,WANG Kang-kang,DU Zhong-hua,et al.Effect of Initiation Way on the Blasting Power of Linear Shaped Charge[J].,2014,37(5):37.
[2]朱绪强,王锋,杜忠华,等.多模LEFP成型机理与侵彻威力研究[J].火炸药学报,2016,39(4):61.[doi:10.14077/j.issn.1007-7812.2016.04.012]
 ZHU Xu-qiang,WANG Feng,DU Zhong-hua,et al.Research on the Formation Mechanism and Penetration Power of Multiple Model LEFP[J].,2016,39(5):61.[doi:10.14077/j.issn.1007-7812.2016.04.012]

备注/Memo

备注/Memo:
收稿日期:2018-05-13;改回日期:2018-07-14。
基金项目:The National Natural Science Foundation of China (No.11802141;No.11772160)
作者简介:CHEN Xi (1984-),female,lecturer,research field:damage and protection.E-mail:chenxi@njust.edu.cn
通讯作者:LIU Jie (1988-),male,lecturer,research field:mechanic and explosion.E-mail:liujie8812@163.com
更新日期/Last Update: 1900-01-01