Title :
Quasi-Static Field Computation in Inhomogeneous Axisymmetric Conducting and Magnetic Materials
Author :
Morgan, Michael A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Naval Postgraduate Sch., Monterey, CA
Abstract :
A unique computational approach is described and validated for predicting the penetration of low-frequency electric and magnetic fields through a finite length cylindrical structure composed of inhomogeneous magnetic and/or conducting materials. This method couples a special azimuthal field finite element formulation within the inhomogeneous cylindrical shell to cylindrical harmonic expansions both inside and outside of the shell. Comparisons are made for homogeneous material shielding calculations performed using harmonic expansions in all regions
Keywords :
conducting materials; electric fields; electromagnetic shielding; finite element analysis; magnetic fields; magnetic materials; cylindrical harmonic expansions; finite length cylindrical structure; harmonic expansions; homogeneous material shielding; inhomogeneous axisymmetric conducting materials; inhomogeneous cylindrical shell; low-frequency electric fields; low-frequency magnetic fields; magnetic materials; quasi-static field computation; Coils; Conducting materials; Finite element methods; Magnetic materials; Magnetic shielding; Nonuniform electric fields; Region 1; Region 2; Region 3; Steel;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633161
