Accelerating conductors by electromagnetic action through metallic shields

Author

Novac, B.M. ; Smith, I.R. ; Jarvis, P.E. ; Abbott, C.J.

Author_Institution

Dept. of Electron. & Electr. Eng., Loughborough Univ., Leicestershire, UK

Volume

39

Issue

1

fYear

2003

Firstpage

305

Lastpage

309

Abstract

This paper describes a novel technique for producing an electromagnetic force to accelerate a conducting projectile situated on the remote side of a metallic shield, for use in novel electromagnetic fasteners. The theoretical background for the technique is explained and is supported by measurements of the velocity achieved by the projectile in a prototype unit. The effect of the initial separation between the drive coil and the projectile is investigated, and it is shown that the shield material has little influence on the projectile dynamics.

Keywords

capacitor storage; conducting bodies; current distribution; electromagnetic actuators; electromagnetic induction; electromagnetic launchers; magnetic shielding; projectiles; actuation technique; conducting projectile acceleration; current distribution; diffusion processes; drive coil projectile separation; electromagnetic action; electromagnetic fasteners; electromagnetic force production; electromagnetic induction; kilojoule-size capacitor bank; magnetic shielding; metallic shields; projectile dynamics; projectile velocity measurements; shield material; two-dimensional modeling; Acceleration; Coils; Conductors; Electromagnetic forces; Electromagnetic measurements; Electromagnetic shielding; Fasteners; Projectiles; Prototypes; Velocity measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.805922

Filename

1179828