磁爆加载下强磁体的磁场研究  

Study on the Magnetic Field of High Field Magnet Powered by Flux Compression Generator

作　　者：夏明[1,2] 黄正祥[1] 顾晓辉[1] 王叶中[1] 

机构地区：[1]南京理工大学智能弹药技术国防重点学科实验室,江苏南京210094 [2]总参谋部工程兵科研三所,河南洛阳471023

出　　处：《高压物理学报》2012年第4期433-441,共9页Chinese Journal of High Pressure Physics

基　　金：国家部委预研基金项目(51326030104H)

摘　　要：为了研究磁爆压缩发生器加载下强磁体形成的磁场,对磁爆加载过程进行分析,建立了磁爆加载下强磁体形成磁场的理论模型。按照此模型,对6种不同结构强磁体的磁场进行对比研究,得到了强磁体的磁场变化规律。结果表明:在加载初始阶段,磁爆压缩发生器的自身参数为主要影响因素,各磁体的磁场峰值和范围差别较小;在磁通压缩阶段,电路过程的改变使得磁体结构的影响逐渐显著,各磁体的磁场峰值和范围发生了明显变化;磁体结构对磁场的空间分布具有决定性作用,磁场分布不受加载过程的影响。To study magnetic field of the high field magnet powered by flux compression generator（FCG）,a theoretical model is established by analysis of loading process.According to this model,a comparative study on magnetic fields of six high field magnets with different structures is carried out,and the variation laws of the magnetic fields are also acquired.The results show that the parameters of FCG are the main factor in the initial stage,which cause small differences of peak strength and range of magnetic field between six magnets;but in the flux compression stage,the influence of the magnetic structure is more and more important with the variation of circuit process,and the peak strength and range of magnetic field for different magnets are changed significantly.Furthermore,the structure of magnet plays the decisive role in the spatial distribution of magnetic field,which is not affected by the loading process.

关 键 词：磁爆压缩发生器 磁场 理论模型 强磁体 

分 类 号：O361.3[理学—流体力学]