Comparison and Simulation Analysis of Augmented Electromagnetic Rail Launchers

Abstract

On the basis of stack augmented electromagnetic rail launcher, using an H type armature to connect the upper and lower two groups of guideways through four contact surfaces to form an electromagnetic rail launcher. By changing the shape of the contact surface of the armature and the guide rail, different launcher models were set up, and compared with the traditional augmented electromagnetic launchers. The simulation analysis was carried out by Maxwell software. The results show that the electromagnetic thrust of the H type armature is obviously greater than that of the double-armature. For the arc shaped contact surface, the current distribution on the contact surface of the double-armature is the most uniform, and the ablation and melting can be well suppressed. The current distribution on the contact surface of the H type armature is more uniform and has the greatest electromagnetic thrust, so it is more suitable electromagnetic rail launch.