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轴线起爆式螺线管型爆磁压缩发生器理论模型
引用本文:孙奇志,孙承纬.轴线起爆式螺线管型爆磁压缩发生器理论模型[J].强激光与粒子束,2003,15(4):385-390.
作者姓名:孙奇志  孙承纬
作者单位:中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
基金项目:国家863计划项目资助课题
摘    要: 对轴线起爆式螺线管型爆磁压缩发生器进行了理论模型研究,建立了爆炸管的一维爆轰驱动模型、螺线管内空间磁场强度分布模型、爆炸管外表面磁压力模型和发生器系统的等效电路模型等,对此类发生器的物理过程进行系统描述。在此基础上,编制了相应的零维数值模拟程序CEMG 1.0,利用该程序分别对四种不同模型参数的发生器进行了理论计算和参数优化,并对其中一模型发生器爆炸管外表面的磁压力及其引起的剩余电感进行了计算,给出了剩余电感与初始输入条件及负载电感的关系,从而得到该模型的输出性能极限。对理论模型的正确性进行了实例验算证明。

关 键 词:爆磁压缩发生器  脉冲功率技术  爆炸电源  螺线管型爆磁压缩发生器
文章编号:1001-4322(2003)04-0385-06
收稿时间:2002/8/12
修稿时间:2002年8月12日

Model of helical magnetic compression generators with explosive initiated axially
sun qi zhi,sun cheng wei.Model of helical magnetic compression generators with explosive initiated axially[J].High Power Laser and Particle Beams,2003,15(4):385-390.
Authors:sun qi zhi  sun cheng wei
Institution:Institute of Fluid Physics, CAEP, P.O. Box 919 108, Mianyang 621900, China
Abstract:The model of helical genertors whose explosive is initiated axially (MFCG) with a high inductance load has been set up in this paper. Based on the model of the MFCG that consists of 1-D model for explosion driven central tube (armature), a model for magnetic field distribution inside the helix, a model for magnetic force outside the center tube and the circuit model, a code (CEMG 1.0) was compiled. Calculation results show that, the output current and pulse duration of MFCG can be enlarged as the distance between the central tube and the stator helix increase. The generator with smaller pitch of feed coil can output higher current on the load, and the generators with an aluminum tube can output shorter pulse duration than those with a copper tube. A generator with 120 mm in stator coil diameter, 60 mm in copper tube diameter, 2.5 mm in tube thickness and initial current 3.5 kA in feed coil can output pulse current 113 kA on an inductance load of 1.26 μmH, the rise-time less than 2 us.
Keywords:MFCG  Pulsed power  Explosive power source  Helical magnetic compression generator
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