Improve dimension of projectile for increasing efficiency of electromagnetic launcher

An advantage that electromagnetic launchers have over chemical ones is that they can accelerate projectiles to much higher (hyper) velocities. The present interest in electromagnetic launchers has resulted in a great competition between the two major types: Rail guns and coilguns. The purpose of modeling the coilgun is to provide a theoretical understanding of how the design parameters of coilgun such as magnetic flux density in the air gap, dimension of projectile, maximum current density repulsive force acting on the coil. Finite element analysis technique is employed to calculate the coilgun design parameters using two-dimensional analysis. This paper investigates how the coilgun design parameters affect the projectile dimensions using finite element technique. Also, the result of simulation will be proof with the experimental results.