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含金属炸药爆炸过程磁场研究

时间:2019-02-20 10:33来源:毕业论文
设计了含铝炸药爆轰电磁脉冲测试实验,通过五组实验捕捉到频率为0.1MHz左右的电磁脉冲,验证了含金属炸药爆炸产生电磁脉冲的真实性。分析实验结果得到结论:电磁脉冲信号强度与

摘要炸药爆轰是一个复杂的物理过程,常伴随着放热、放电现象,经典爆轰物理学主要以研究热力学为主,电磁脉冲现象作为爆炸过程中的重要组成部分,已引起国内外学者的一定关注。本文通过理论计算,数值仿真和实验研究的方法,对爆炸过程中的电磁脉冲电磁参数进行了研究与测量。33343
首先,文章依据等离子体物理学原理分析了爆轰产生电磁脉冲机理;通过等离子体辐射电磁脉冲的数学模型分析了爆轰参数与电磁场参数之间的关系;依据电磁场麦克斯韦方程及其数值解法描述电磁场分布情况;
其次,在理论分析的基础上依据测试原理设计并加工了电磁脉冲测试系统,通过标准脉冲发生器验证了系统的可靠性;
最后,设计了含铝炸药爆轰电磁脉冲测试实验,通过五组实验捕捉到频率为0.1MHz左右的电磁脉冲,验证了含金属炸药爆炸产生电磁脉冲的真实性。分析实验结果得到结论:电磁脉冲信号强度与相同质量炸药的金属含量以及相同金属含量炸药的质量成正比,与测试天线之间的距离成反比。
本文的研究的研究结果,对解释爆轰过程中的电磁场有一定的借鉴意义。
关键词  电磁脉冲  等离子体物理  麦克斯韦方程  爆轰物理 信号测试
毕业论文设计说明书外文摘要
Title The research of Magnetic field on explosive magnetic field        of metal explosive 源`自*六)维[论*文'网www.lwfree.cn
Abstract
Explosive detonation is a complicated physical process, which is often accompanied by heat release and discharge.. The classical detonation physics is mainly based on thermodynamics, and the electromagnetic pulse phenomenon is an important part of the explosion, and has not been studied deeply.. Through theoretical calculation, numerical simulation and experimental study, the electromagnetic pulse electromagnetic parameters of the explosive are studied and measured..
Firstly, on the basis of plasma physics principle analysis of the detonation electromagnetic pulse generating mechanism; through the plasma radiation electromagnetic pulse of the mathematical model analysis of the detonation the relationship between parameters and the parameters of the electromagnetic field; according to Maxwell equations and the numerical method for the description of the electromagnetic field distribution.
Secondly, the electromagnetic pulse test system is designed and processed on the basis of theoretical analysis, and the reliability of the system is verified by the standard pulse generator..
Finally, the design of the aluminized explosives detonation electromagnetic pulse test, through the five sets of experiments to capture frequency 0.1MHz about electromagnetic pulse, verify the explosive containing metal explosion electromagnetic pulse of authenticity. Analysis of experimental results, we come to the conclusion: electromagnetic pulse signal intensity with the same quality of explosive metal content and the same metal explosive content is proportional to the mass, the distance between the test antenna and inversely proportional.
It is hoped that the results of this study can provide a reference for the electromagnetic field in the detonation process..
Keywords: Electromagnetic pulse plasma   Physics principle    Maxwell equations
          Detonation physics    Engineering test
目 录    I 源`自*六)维[论*文'网www.lwfree.cn
1 绪论    1
1.1 研究背景及意义    1
1.2 炸药爆炸过程中产生电磁脉冲现象国内外研究现状    2
1.2.1 国外研究现状    2
1.2.2 国内研究现状    2
1.3 脉冲电磁场测试国内外研究现状    4
1.3.1 国外研究现状    4 含金属炸药爆炸过程磁场研究:http://www.lwfree.cn/wuli/20190220/30466.html
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