Review of the recent works of Ukrainian authors in the field of electromagnetic acceleration and related topics

During a time passed after 9th EML Symposium. the principal topics of electromagnetic acceleration have been under development in Ukraine mainly due to activity of small initiative groups of scientists, There were the nest problems of interests: 1) some details of high current sliding contact operation and problem of contact pair choice-the role of different imperfect resistance between armature and both rails was shown there by simulation; 2) the search of analytical solutions for current density distribution in the contact zone of railgun-for the critical zone disposed on the trailing corner of armature the good approximation have been found in the model of quasisteady motion; 3) analysis of electromagnetic process and energy conversion in the rotating pulsed generator of increased density of energy, as with iron-free rotor-the ways of flux leakage reduction at the magnetic compression were analyzed there: 4) applicability of coilgun for military air-defense mission-there the goal of application was estimated and efficiency of the flying target defeat was calculated, The paper presents some details of results obtained in these topics.