Influence of magnetic pressure on performance of cylinder-taper cascaded HMFCGs

In order to study the basic physical process and energy conversion mechanism of helical magnetic flux compression generators (HMFCG) of the two-stage cylinder-taper configuration, a series of HMFCG models were simulated and analyzed using the code MFCG(Ⅴ). The influence of the magnetic pressure on the radial velocity and the expanding process of the armature were particularly analyzed. The simulation results show that during most time of the magnetic flux compression process, the radial velocity of the expanding armature is determined by detonation pressure, but with the current increase the effects of magnetic pressure become more and more important, which should be considered in designing the second stage of the HMFCG.