线圈磁场对金属射流有效箍缩作用时间分析

孟学平; 雷彬; 向红军; 吕庆敖; 齐文达; 黄旭

doi:10.15892/j.cnki.djzdxb.2019.01.034

弹箭与制导学报 >

2019 , Vol. 39 >Issue 1: 155 - 159

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2019.01.034

线圈磁场对金属射流有效箍缩作用时间分析

孟学平 ,
雷彬 ,
向红军 ,
吕庆敖 ,
齐文达 ,
黄旭

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陆军工程大学石家庄校区,石家庄050003

孟学平(1988-),男,山东德州人,助教,博士研究生,研究方向:脉冲功率技术及电磁发射技术。

收稿日期: 2016-08-22

网络出版日期: 2025-05-21

基金资助

国家自然科学基金(51307182)

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Effective Pinch Effect Time Analysis of Coil Magnetic Field on Shaped Charge Jet

MENG Xueping ,
LEI Bin ,
XIANG Hongjun ,
LYU Qing'ao ,
QI Wenda ,
HUANG Xu

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Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China

Received date: 2016-08-22

Online published: 2025-05-21

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摘要

励磁线圈磁场对金属射流的有效箍缩作用时间,对试验设计和破甲弹威力电磁增强技术工程化应用至关重要。采用理论分析和有限元仿真计算相结合的方法,分析了励磁线圈磁场对金属射流的作用特性及有效箍缩作用时间。结果表明,金属射流凸起部分的节点电磁力大于同时刻凹陷部分的对应值;当脉冲电流频率为50kHz时,其激发磁场使金属射流发生有效变形的时间为3µs≤t≤6.5µs,该时间确保金属射流颈缩部位产生足够大的磁压力差,使金属射流发生有效变形。

关键词： 励磁线圈磁场; 破甲弹金属射流; 有效箍缩作用时间; 电磁力; 磁压力差

本文引用格式

孟学平 , 雷彬 , 向红军 , 吕庆敖 , 齐文达 , 黄旭 . 线圈磁场对金属射流有效箍缩作用时间分析[J]. 弹箭与制导学报, 2019 , 39(1) : 155 -159 . DOI: 10.15892/j.cnki.djzdxb.2019.01.034

Abstract

Effective pinch effect time of coil magnetic field on shaped charge jet is very important for test design and engineering application of High-Explosive Anti-Tank(HEAT) electromagnetic enhancement. The effect characteristics and effective pinch effect time of coil magnetic field on shaped charge jet are analyzed with theoretical analysis and finite element simulation calculation. The results showed that, electromagnetic force of the protuberance of shaped charge jet is bigger than that of the pit at the same time. Time is between 3µs and 6. 5µs, which makes shaped charge jet to generate effective deform with magnetic field of coil when the frequency of pulse current is 50kHz, it can produce large enough magnetic pressure difference, and make shaped charge jet to generate effective deform.

Key words： magnetic field of magnet exciting coil; shaped charge jet of HEAT; effective pinch effect time; electromagnetic force; magnetic pressure difference

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参考文献

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