| 1. | Explosively driven magnetic flux compression generators ( fcg ) are a type of compact pulsed power sources 爆炸磁通量压缩发生器( fcg )是一种紧凑的脉冲功率源。 |
| 2. | In recent years , attention has been given to fcg ' s application in generating high - power microwaves ( hpm ) 近年来,利用fcg产生高功率微波( hpm )的研究受到了重视。 |
| 3. | Experiments with fcg show that voltage breakdown and fabrication tolerance causes most of the flux losses 从fcg装置的实验中得到了fcg设计中存在的主要问题是击穿和装配公差。 |
| 4. | As fcg ' s performance depends on the load greatly , the power conditioning circuit should take both fcg and the load into account 由于fcg的输出与负载密切相关,调制电路模型需要与fcg和负载结合起来考虑。 |
| 5. | Firstly , an equivalent circuit for a common fcg is discussed and influences of fcg ' s design parameters on its current and energy amplification are obtained 首先从fcg的基本原理和结构出发,通过等效电路模型,得到了fcg工作过程中各种参数对其电流和能量放大影响的一般规律。 |
| 6. | Pspice models for fcg , pulse transformer , electric exploding wire opening switch ( eeos ) , blumlein pulse forming line , and virtual cathode osillator ( vircator ) are created 利用pspice程序,创建了包括脉冲变压器、电爆炸丝( eeos ) 、 blumlein传输线、虚阴极振荡器( vircator )和fcg等在内的电路元件模型库。 |
| 7. | In order to drive a high impedance load such as hpm sources , it is necessary to commutate fcg ' s long pulse width , high - current and low voltage pulse to a short pulse with high voltage 为用fcg驱动象hpm源这样较高阻抗的负载,必须使用脉冲功率调制电路把fcg产生的低电压、大电流、上升时间长的电压脉冲转化为高电压、上升时间短的脉冲。 |
| 8. | At last , an orthogonal test designing method is proposed to study the influences of various fcg and power conditioning circuit parameters on the system performance , to find out those most influential factors and to make them optimized 最后文中提出应用了正交试验设计方法对影响fcg和脉冲功率调制电路性能的参数进行研究,以此来确定影响系统运行的主要因素和优化参数的努力方向。 |
| 9. | In the model , johnson - cook strength is combined with gurson - tvergaard - needleman yield criteria , and random distribution of microvoids is used . results show that quasi - periodic axial fracture will appear , which obstructs the mirror current of the armature 在给定微孔洞的初始扰动时,计算结果解释了铝电枢表面将要形成的不稳定性,它导致了电枢外表面出现周期性的轴向裂纹,阻碍了镜像电流,使fcg损耗增加。 |
| 10. | Resistance of the stator is obtained by solving a 1 - d magnetic field diffusion problem . based on the code , curves of fcg ' s inductance , resistance , temperature and its output current , voltage are calculated . secondly , the expanding process for an armature of a helical fcg is studied in depth by a nonlinear , explicit finite - element ( fe ) code 数值计算电感时考虑了螺旋型fcg的三维效应,以及电枢表面镜像电流的分布,并通过求解圆柱型导线的一维磁场扩散问题比较精确地得到了fcg定子的电阻,在此基础上计算了fcg装置的电感、电阻、输出电流、电压和温度等随时间的变化。 |