Toroidal Field Electromagnetic Launcher

A conventional electromagnetic launcher is incapable of driving large mass for the inherent technical drawback. This paper presents a novel electromagnetic launcher based on toroidal magnetic field induction acceleration. The fundamental model and launch mechanism of the electromagnetic acceleration force from toroidal magnetic field interaction are first proposed and analyzed. The essential theory with systematic formulism for toroidal magnetic field, circuit, and dynamics is established. Circumventing necessary initial speed, huge propulsion could be obtained by projectile from the improved effective electromagnetic force and larger radial cross-sectional area with significant eddy current. The four-stage transient launch process of the toroidal field electromagnetic launcher is simulated through electromagnetic field finite-element analysis. The simulation results demonstrate that the toroidal field electromagnetic launcher is a potential candidate for massive emission and supervelocity launch.