Due to the displacement between armature and stator axes of helical explosive magnetic flux compression generators(HMFCGs), the continuous contact between stator and expanding armature may be altered to skipping, which is a major factor affecting output characteristics of HMFCGs because the flux pocketed in the skipped portion is lost. The condition of flux loss because of displacement between armature and stator axes of simple cylindrical and conical generators is mathematically analyzed, and a brief expression is derived which can be used to determine the exact condition of a given generator geometry. Based on the expression, identification of turn-skipping condition and calculation of turn-skipping ratio of a given generator geometry can be obtained by numerical calculation code on Matlab platform, thus giving guidelines to the design and assembling of HMFCG coils and armatures.%电枢与定子线圈轴线的偏差会导致膨胀电枢与线圈的接触点出现跳变,从而造成磁通损失;这也是影响爆磁压缩发生器输出性能的重要因素.根据发生器的结构以及电枢与线圈的轴向偏心率,推导出了确断发生器是否发生跳匝的函数表达式.根据这个表达式,可以很方便地在Matlab计算平台上确定任意线圈结构的发生器的跳匝情形,并可以精确计算发生跳匝的比例,从而指导螺旋形爆磁压缩发生器线圈和电枢的设计和安装.
展开▼
