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The magnetic levitation of the projectile in coilguns

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4 Author(s)
De-Man Wang ; Xidian Univ., Xi'an, China ; Qun She ; Yin-Ming Zhu ; Jian-Jun Chen

An approach to the analysis of the magnetic levitation of the projectile in the coilgun's interior trajectory is proposed. The magnetic force acting upon the armature has the nature of a restoring force but its profile changes in every instant. So the transverse movement of the projectile can not be described by an ordinary oscillation caused by a restoring force. Since the transit process is calculated numerically step by step and all the necessary data are obtained at each step the analysis of the levitation motion can be implemented in the same way conveniently. The character of the magnetic forces acting upon the armature is analyzed in derail. The computation of the magnetic levitation during the whole transit process of a 5-stage gun is presented

Published in:

IEEE Transactions on Magnetics  (Volume:33 ,  Issue: 1 )