Abstract
The armature and rail thermal ablation caused by the current concentration phenomenon will affect the service life of the guideway during the operation of the compound four-rail electromagnetic emitter. With different rail materials simulated and analyzed using the finite element analysis method and the ANSYS software, the composite four-rail electromagnetic launcher’s current density distribution and electromagnetic field distribution were designed to optimize and improve the thermal ablation of the armature and rail of the composite electromagnetic launcher. The results show that the copper steel composite electromagnetic launcher can improve the current concentration and electromagnetic shielding ability.
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