PROJECT TITLE :

The Voltage–Current Scaling Relationship and Impedance of DC Electromagnetic Launchers

ABSTRACT:

Electromagnetic launchers (EMLs) as well as railguns, helical guns, and coilguns are proposed for varied applications. But, the scaling characteristics of EMLs are unknown. This paper examines the nonlinear operating characteristics of EMLs and derives the operating voltage and current scaling relationships as determined by the mass and velocity of the projectile and therefore the length of the launcher. The scaling relationship springs using the kinetic power relationship common to any or all sorts of EMLs. The scaling relationship is expressed as a easy operate of the projectile velocity, projectile mass, and launcher length. This paper conjointly defines the impedance of an EML. The accuracy of the scaling relationship and therefore the EML impedance are verified in an exceedingly comparison with the experimental results of practical EMLs. The effects of resistive losses and inductive energy storage on the scaling relationship are included in the analysis.