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起爆方式对战斗部破片定向性能影响的数值模拟研究
引用本文:屈明,钱立新,杨云斌.起爆方式对战斗部破片定向性能影响的数值模拟研究[J].含能材料,2005,13(3):137-140.
作者姓名:屈明  钱立新  杨云斌
作者单位:中国工程物理研究院结构力学研究所,四川,绵阳,621900
摘    要:利用ANSYS/LS-DYNA软件,采用数值模拟方法,针对一虚拟的定向破片战斗部,研究了不同起爆方式对破片定向性能的影响,获得了破片在定向区域的破片数、平均速度和动能等物理量,通过分析比较不同起爆方式的密度、速度和动能增益,取得了起爆方式对破片定向性能影响的规律性认识,给出了一个工程上易于实现的、相对优越的起爆方式。

关 键 词:爆炸力学  定向特性  增益  起爆方式  爆轰驱动  数值模拟
文章编号:1006-9941(2005)03-0137-04
收稿时间:2004/11/1 0:00:00

Numerical Simulation of Effect of Initiation Position on Directed Performance of Warhead Fragment
QU Ming,QIAN Li-xin and YANG Yun-bin.Numerical Simulation of Effect of Initiation Position on Directed Performance of Warhead Fragment[J].Chinese Journal of Energetic Materials,2005,13(3):137-140.
Authors:QU Ming  QIAN Li-xin and YANG Yun-bin
Affiliation:Institute of Structural Mechanics, CAEP, Mianyang 621900, China;Institute of Structural Mechanics, CAEP, Mianyang 621900, China;Institute of Structural Mechanics, CAEP, Mianyang 621900, China
Abstract:In order to investigate the influence of different initiation positions on the directed performance of fragments,the numerical simulation for an assumed directed fragment warhead was conducted by using ANSYS/ LS DYNA in this paper. The numbers, average velocity and kinetic energy of fragments as well as their enhancements in directed area in different initiation positions were obtained. The influence of different initiation positions on the directed performance of fragments was analyzed. A preferable initiation position,which was easy to achieve in engineering,was proposed.
Keywords:explosion mechanics  directed performance  enhancement  initiation position  detonation drive  numerical simulation
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