[1]李宏达,李 欣,孟宪江,等.高压脉冲对岩混材料击穿效应的仿真研究[J].南京理工大学学报(自然科学版),2015,39(01):15-19.
 Li Hongda,Li Xin,Meng Xianjiang,et al.Simulation on effect of high voltage pulse on rock mixed materials breakdown[J].Journal of Nanjing University of Science and Technology,2015,39(01):15-19.
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高压脉冲对岩混材料击穿效应的仿真研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
39卷
期数:
2015年01期
页码:
15-19
栏目:
出版日期:
2015-02-28

文章信息/Info

Title:
Simulation on effect of high voltage pulse on rock mixed materials breakdown
作者:
李宏达12李 欣1孟宪江3杨青川3詹艳艳3赵红阳1车 龙1
1.沈阳理工大学 装备工程学院,辽宁 沈阳 110168; 2.清华大学 机械系,北京 100084; 3.沈阳理工大学 信息与工程学院,辽宁 沈阳 110168
Author(s):
Li Hongda12Li Xin1Meng Xianjiang3Yang Qingchuan3Zhan Yanyan3 Zhao Hongyang1Che Long1
1.Equipment Engineering College,Shenyang Ligong University,Shenyang 110168,China; 2.Mechanical Department,Tsinghua University,Beijing 100084,China; 3.College of Information and Engineering,Shenyang Ligong University,Shenyang 110168,China
关键词:
高压脉冲 临界击穿 岩混材料 能量密度 电子束轨迹
Keywords:
high voltage pulse critical breakdown rock mixed materials energy density electron beam trajectory
分类号:
TM852
摘要:
为了研究高压脉冲对岩混材料目标的击穿规律,该文通过计算机仿真软件模拟高压脉冲对岩混材料块的作用过程,研究电子束运动轨迹及其能量密度分布的变化。结果表明:趋于临界击穿条件下,电极端自由电子的倍增效应越发显著,输入端发生雪崩击穿并表现出电子束呈现边界收窄的趋势,同时电极尖端能量密度分布趋于聚焦,与实验所测输出电流峰值越高,波形脉宽越窄的现象一致。该研究可为高效破碎岩混材料相关应用提供技术依据。
Abstract:
In order to summarize the breakdown rules of the rock mixed materials targets with high voltage pulse,the effect of the high voltage pulse on the rock mixed materials block process is simulated through a computer simulation software.Electron beam trajectories and energy density distribution changes from the attack are analysed.The research results show that:under the critical breakdown conditions,the free electron multiplier effect of the electrode end is even more remarkable.The avalanche breakdown shows that the present boundary of the electron beam is narrowing in the input,the electrode tip energy density distribution tends to be focused,and the measured output current peak value is higher.The more narrow the pulse width waveform is,the more effective the rock mixed materials breakdow is related.

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备注/Memo

备注/Memo:
收稿日期:2014-03-03 修回日期:2014-11-18
基金项目:国家自然科学基金(51207096); 爆炸科学与技术国家重点实验室(北京理工大学)开放基金(KFJJ13-6M); 沈阳理工大学重点学科开放基金
作者简介:李宏达(1977-),男,副教授,清华大学博士后,主要研究方向:脉冲功率技术,高压放电材料改性,E-mail:308544490@qq.com。
引文格式:李宏达,李欣,孟宪江,等.高压脉冲对岩混材料击穿效应的仿真研究[J].南京理工大学学报,2015,39(1):15-19.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2015-02-28