Effects of shielding on railgun inductance gradient

A railgun uses electromagnetic propulsion to launch a projectile. Shielding of a railgun by conductors is one of the best methods for decreasing inner pressure on the rails. The magnetic field which is produced by shield eddy currents neutralizes the forces pressing rails outward and prevents struct...

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Bibliographic Details
Main Authors: Moghaddam, E.S., Keshtkar, A., Nematollah Zadeh, S.M.
Format: Conference Proceeding
Language:English
Subjects:
Conductors
Eddy currents
Electromagnetic launching
Inductance
Iron
Magnetic shielding
Pressing
Projectiles
Railguns
Rails
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Description
Summary:A railgun uses electromagnetic propulsion to launch a projectile. Shielding of a railgun by conductors is one of the best methods for decreasing inner pressure on the rails. The magnetic field which is produced by shield eddy currents neutralizes the forces pressing rails outward and prevents structure deformation. By implementing the FE method on the railgun cross section, we consider the shielding effects on the rails' inductance gradient. We have also researched the effects of the shield material and of the distance between rails and shield on the inductance gradient.
DOI:10.1109/ICCEA.2004.1459285