包覆式双层 EFP成型数值模拟

王维占; 李小军; 雷文星; 赵太勇; 付建平; 印立魁; 陈智刚

doi:10.15892/j.cnki.djzdxb.2018.06.023

弹箭与制导学报 >

2018 , Vol. 38 >Issue 6: 103 - 108

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2018.06.023

包覆式双层 EFP成型数值模拟

王维占 ,
李小军 ,
雷文星 ,
赵太勇 ,
付建平 ,
印立魁 ,
陈智刚

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¹ 中北大学地下目标毁伤技术国防重点学科实验室,太原 030051
² 军事科学研究院防化研究院,北京 102200
³ 晋西工业集团有限责任公司防务装备研究院,太原 030041

王维占(1990-),男,河北青县人,博士研究生,研究方向:弹药工程与毁伤技术。

收稿日期: 2017-12-27

网络出版日期: 2025-05-29

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Numerical Simulation of Double-layer Cladding EFP Molding Process

WANG Weizhan ,
LI Xiaojun ,
LEI Wenxing ,
ZHAO Taiyong ,
FU Jianping ,
YIN Likui ,
CHEN Zhigang

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¹ National Defense Key Subject Laboratory of Underground Target Damage Technology, North University of China, Taiyuan 030051, China
² Defense, Academy, Military Sciences of PLA, Beijing 102200, China
³ Defense Equipment Research Institute, Jinxi Industries Group Co. Ltd, Taiyuan 030041, China

Received date: 2017-12-27

Online published: 2025-05-29

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摘要

为提高爆炸成型弹丸(EFP)对目标的毁伤效应,针对典型双层球缺型药型罩EFP,运用数值模拟与理论分析的方法,对铜铁复合双层EFP成型过程及影响包覆效果的因素进行分析。结果表明:球缺罩结构内罩采用顶厚边薄结构,外罩采用顶薄边厚结构时,可实现对内罩较好的包覆效果;所得结论:壳体厚度取值在(0.04~0.07)D之间,内、外罩曲径比取值在(1.75~2.75)D之间,装药高度取值在H>1.6D时,双层EFP速度梯度最小,包覆效果较好。

关键词： 包覆; 折叠; 翻转; EFP

本文引用格式

王维占 , 李小军 , 雷文星 , 赵太勇 , 付建平 , 印立魁 , 陈智刚 . 包覆式双层 EFP成型数值模拟[J]. 弹箭与制导学报, 2018 , 38(6) : 103 -108 . DOI: 10.15892/j.cnki.djzdxb.2018.06.023

Abstract

In order to improve the damage effect of the explosively formed projectile (EFP) on the target, a numerical simulation and theoretical analysis method is applied to the typical double-layer hemispherical EFP liner, and the effect of the copper-iron composite double-layer EFP molding process and the cladding effect are investigated. The factors are analyzed. The results show that the inner liner of the hemispherical liner adopts the structure with thick top and thin edge, and the outer liner adopts the structure with thin top and thick edge, achieving a better coating effect on the inner liner. The conclusion can be drawn that the double-layer EFP has the smallest velocity gradient and better coating effect under the conditions that the shell thickness is between D (0.04~0.07)), the bending diameter ratio of the inner and outer liners is between D (1.75~2.75) and the loading height is more than 1.6D.

Key words： cladding; fold; flip; EFP

参考文献

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