Title :
Physical scale modeling to predict current diffusion in solid armatures
Author :
Pappas, J.A. ; Driga, M.D. ; Weldon, W.F.
Author_Institution :
US Army ARDEC, Picatinny Arsenal, NJ, USA
fDate :
1/1/1989 12:00:00 AM
Abstract :
Scaling laws relating current diffusion in a high-conductivity material at low velocity to current diffusion in a lower conductivity material are derived. The design of an experiment to determine the validity of the scaling relationships is described. If the scaling is shown to be valid, then information for predicting thermal and mechanical loading in a solid armature (for a railgun) at high velocity will be available by measuring the current distribution at low velocity
Keywords :
electric current measurement; electromagnetic launchers; current diffusion prediction; current distribution measurement; high velocity; high-conductivity material; low velocity; lower conductivity material; mechanical loading; rail guns; scaling laws; solid armatures; Conducting materials; Conductivity; Current distribution; Current measurement; Mechanical variables measurement; Predictive models; Railguns; Solid modeling; Thermal loading; Velocity measurement;
Journal_Title :
Magnetics, IEEE Transactions on
