首页 | 本学科首页   官方微博 | 高级检索  
     

贴隔板法在尾翼EFP成型中的应用研究
引用本文:林加剑,沈兆武,任辉启. 贴隔板法在尾翼EFP成型中的应用研究[J]. 含能材料, 2009, 17(5): 588-593. DOI: 10.3969/j.issn.1006-9941.2009.05.021
作者姓名:林加剑  沈兆武  任辉启
作者单位:中国科学技术大学近代力学系,安徽,合肥,230026;总参工程兵科研三所,河南,洛阳,471023;中国科学技术大学近代力学系,安徽,合肥,230026;总参工程兵科研三所,河南,洛阳,471023
摘    要:采用LS—DYNA对在药型罩上粘附隔板结构形成带尾翼型爆炸成型弹丸(explosively formed projeetile,EFP)进行三维数值模拟,从药型罩微元压跨速度和压力的角度初步探讨了形成尾翼型EFP的机理,对同一直径的大锥角型、球缺型和弧锥结合型药型罩形成的尾翼型EFP进行了对比分析,三种结构药型罩均能形成较为明显的尾翼,其中大锥角型药型罩得到的EFP速度最高。数值计算结果表明,EFP尾翼数与药型罩上所粘贴的隔板数一致,三种不同结构药型罩上粘贴四个隔板,得到的尾翼数均为四个。通过实验,对贴隔板法形成尾翼EFP做了进一步验证,实验结果与数值模拟结果基本一致。

关 键 词:爆炸力学  爆炸成型弹丸(EFP)  尾翼  药型罩  聚能装药  隔板  数值模拟
收稿时间:2009-01-19
修稿时间:2009-06-25

The Application Study of Affixed Cover in Forming Process of EFP with Fins
LIN Jia-jian,SHEN Zhao-wu and REN Hui-qi. The Application Study of Affixed Cover in Forming Process of EFP with Fins[J]. Chinese Journal of Energetic Materials, 2009, 17(5): 588-593. DOI: 10.3969/j.issn.1006-9941.2009.05.021
Authors:LIN Jia-jian  SHEN Zhao-wu  REN Hui-qi
Affiliation:Department of Modern Mechanics,University of Science and Technology of China,Hefei 230026,China;Department of Modern Mechanics,University of Science and Technology of China,Hefei 230026,China;The Third Research Institute of the Corps. of Engineers,Luoyang 471023,China
Abstract:The explosively formed projectile(EFP) with fins for a cover charge structure by LS-DYNA software which four covers were conglutinated on the liner was studied by three-dimensional numerical simulation. The mechanism of forming EFP with fins was discussed based on the curves of velocity and pressure vs time of the liners. A contrastive analysis was carried out on the three kinds of liners which include big-cone shaped liner, imperfect-sphere shaped liner and arc-cone shaped liner. Results show that three kinds of liners can form obvious fins and the velocity of the big-cone shaped liner is the fastest. The experimental results agree with the simulational results basically.
Keywords:explosion mechanics   explosively formed projectile(EFP)   fin   liner   shaped charge   cover   numerical simulation
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《含能材料》浏览原始摘要信息
点击此处可从《含能材料》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号