Open AccessМагнитоплазменный ускоритель макротел с массивным легкоплазменным инициатором
Author(s) -
А.В. Козлов,
А.В. Котов,
В.П. Полищук,
А.В. Шурупов
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2019.09.48063.37-19
Subject(s) - projectile , barrel (horology) , railgun , plasma , mechanics , piston (optics) , drop (telecommunication) , deformation (meteorology) , materials science , physics , composite material , engineering , optics , electrical engineering , nuclear physics , armature (electrical engineering) , quantum mechanics , wavefront , metallurgy , electromagnetic coil
The results of experiments with the initiator of lithium and graphite, the mass of which was ~ 10% by weight of the projectile, are presented. Such initiators create plasma with a high sound velocity value and provide the initial projectile speed of ~0.5 km/s. The drop-like damages on the insulating wall of the launcher barrel are described. There is a link between the appearance of these damages and sudden braking of the plasma piston. A hypothesis is discussed that relates the occurrence of these damages to the resonant deformation of the channel under the action of a moving high-pressure front. It is shown that the hypothesis of the resonant deformation of the barrel at a qualitative level explains the known features of the launcher operation.