3D finite element numerical calculation of C-shaped solid armatures in electromagnetic launch

This paper studies the 3D electromagnetic behavior of solid armature in rail electromagnetic launche r(EML) using finite-element(FE) software ANSYS. A simple quasi-static model for EML, with A-formulation of Maxwell’s equations, is discussed to simulate the three-dimension C-shaped armature. Good agreement to the published simulation data is obtained from EM code EMAP3D, including the current density distribution, magnetic field distribution and Lorentz force in the solid armature for different time. The results indicate that the stationary armature model, based on FE software ANSYS, provide tools for electromagnetic character predictions of rail-armature in electromagnetic launcher.