Title :
Skin effect analysis in axisymmetric stratified conductors
Author :
Molfino, P. ; Repetto, M. ; Rossani, A. ; Sestero, A.
Author_Institution :
Dipartimento di Ingegneria Elettrica, Genova Univ., Italy
fDate :
3/1/1990 12:00:00 AM
Abstract :
A study of skin effect analysis in axisymmetric structures composed of thin alternating layers of conducting and insulating materials, in general not following level surfaces of the cylindrical coordinate system, is presented. A general treatment of such problems by means of tensor conductivity, giving rise to an integro-partial differential equation, is given, and a finite-element formulation allowing a numerical analysis is derived. Finally, an example of application to a new kind of combined poloidal and toroidal winding for advanced fusion machines is presented
Keywords :
Tokamak devices; electromagnetic field theory; electromagnetic induction; finite element analysis; fusion reactor theory and design; integro-differential equations; numerical methods; partial differential equations; skin effect; Maxwell equations; Tokamak device; advanced fusion machines; axisymmetric stratified conductors; cylindrical coordinate system; finite-element formulation; integro-partial differential equation; magnetic induction; numerical analysis; poloidal winding; skin effect analysis; tensor conductivity; toroidal winding; Conducting materials; Conductivity; Conductors; Differential equations; Finite element methods; Insulation; Numerical analysis; Skin effect; Surface treatment; Tensile stress;
Journal_Title :
Magnetics, IEEE Transactions on
