Analysis of an Electromagnetic Railgun with Tapered Rails and Concave Armature using 3-D FEM

摘要

Conventional electromagnetic railguns (EMRGs) use a C-shaped armature and cuboid shaped rails. A concave armature sliding between tapered rails is simulated using the electromagnetic-mechanical coupled analyses of LS-Dyna. Compared to conventional EMRG, the tapered rails with a concave armature result in a 30% larger Lorentz force and a 22% greater exit velocity.