[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

弹箭与制导学报 >

2014 , Vol. 34 >Issue 5: 90 - 93

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2014.05.023

弹药技术

粉末药型罩轴向密度分布对聚能粒子流影响

  • 段能全 ,
  • 高永宏 ,
  • 王文涛 ,
  • 刘天生 ,
  • 王俊元
展开
  • 1 中北大学机械与动力工程学院,太原 030051
    2 中北大学化工与环境学院,太原 030051

段能全(1976-),男,安徽肥西人,讲师,硕士,研究方向:颗粒力学与仿真。

收稿日期: 2013-10-21

  网络出版日期: 2025-05-30

基金资助

国家自然科学基金(11072222)

收起

Effect of Powder Liner's Axial Density Distribution on Shaped Particle Flow

  • DUAN Nengquan ,
  • GAO Yonghong ,
  • WANG Wentao ,
  • LIU Tiansheng ,
  • WANG Junyuan
Expand
  • 1 School of Mechanical and Power Engineering, North University of China, Taiyuan 030051, China
    2 School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China

Received date: 2013-10-21

  Online published: 2025-05-30

Fold

摘要

为研究粉末药型罩轴向密度分布对其形成射流性能的影响,以药型罩微元假设为基础,构建了射流相对长度增量和微元相对位移增量公式,并借助离散元法仿真拟合了粉末药型罩密度分布。通过数值分析与试验相结合,对药型罩轴向密度分布对射流长度和断裂趋势的影响进行了分析研究,结果表明:粉末药型罩密度具有非均匀轴向分布时,可形成相对较长、断裂时间较缓的射流,且其侵彻性能较优。

关键词： 粉末药型罩; 密度分布; 聚能粒子流; 粉末压制; 离散元法

本文引用格式

段能全 , 高永宏 , 王文涛 , 刘天生 , 王俊元 . 粉末药型罩轴向密度分布对聚能粒子流影响[J]. 弹箭与制导学报, 2014 , 34(5) : 90 -93 . DOI: 10.15892/j.cnki.djzdxb.2014.05.023

Abstract

In order to study effect of axial density distribution of powder liner on its jet, the formulas of jet relative length increment and infinitesimal relative displacement increment were built by micro-element assumptions. The density distribution of the powder liner was fit by the discrete element method simulation. Through numerical simulation and static penetration tests, the effects of axial density distribution of liner on length and fracture trends of the jet were studied. The results show that the non-uniform density distribution in liner axial direction can help to lengthen the jet and delay its fracture time. In addition, its penetration properties are well.

Key words： powder liner; density distribution; shaped particle flow; powder compaction; discrete element method

[an error occurred while processing this directive]

参考文献

[1]
VV Azharonok, LE Krat' ko, SV Goncharik, et al. Character of the fast jet efflux upon detonation of shaped charges[J]. Journal of Engineering Physics and Thermo-physics, 2008, 81(3): 494-498.
[2]
郁锐, 李福金, 薛鑫莹, 等. 药型罩壁厚变化率对破甲威力影响的研究[J]. 弹箭与制导学报, 2010, 30(1): 134-136.
[3]
雷锋斌, 曹端林. 钨铜粉末药型罩形成聚能射流的数值模拟 火炸药学报, 2010, 33(6): 73-75.
[4]
Xiangrong Zhang, Cheng Wu, Feng lei Huang. Penetration of shaped charge jets with tungsten-copper and copper lin-ers at the same explosive-to-liner mass ratio into water[J]. Shock Waves, 2010, 20(3): 263-267.
[5]
Bogdan Zygmunt, Zenon Wilk. Formation of jets by shaped charges with metal powder liners[J]. Propellants, Explo-sives, Pyrotechnics, 2008, 33(6): 482-487.
[6]
高永宏. 大炸高下聚能粉末粒子流的侵彻效能研究[D].南京:南京理工大学, 2013.
[7]
姜胜强, 谭援强, 邹霞. 陶瓷粉体干压成型工艺参数优化的离散元模拟[J]. 机械工程材料, 2011, 35(9): 104-107.
[8]
Li Yuan-yuan, Xia Wei, Zhou Zhao-yao, et al. Simulation of random mixed packing of different density particles[J]. Chin. Phys. B, 2010, 19(2): 024601-1-024601-6.
[9]
谭多望, 孙承纬. 大锥角罩聚能装药射流理论计算方法[J]. 高压物理学报, 2006, 20(3): 270-276.
[10]
王丙云. 粉末药型罩压制设备与工艺研究[D].大连:大连理工大学, 2010.
Options
文章导航

/

〈 〉

[an error occurred while processing this directive]