Title :
A Perturbation Method for Computing Field Distortions due to Conductive Regions with H-Conform Magnetodynamic Finite Element Formulations
Author :
Dular, Patrick ; Sabariego, Ruth V.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Liege Univ.
Abstract :
A method for solving eddy current problems in two separate steps is developed for global-local analyses with h-conform finite element formulations. An unperturbed problem is first solved in a global mesh excluding additional conductive regions. Its solution gives the sources for a sequence of other problems, perturbed by adding conductive regions. Each problem only requires a new adapted mesh of a local region. The way the local problems and their sources are defined leads to a significant speed-up of parameterized analyses, e.g. in optimization and sensitivity analyses
Keywords :
finite element analysis; magnetic fields; optimisation; sensitivity analysis; conductive regions; eddy current problems; field distortions; global mesh; global-local analyses; h-conform magnetodynamic finite element formulations; optimization analysis; perturbation method; sensitivity analyses; Computer science; Eddy currents; Finite element methods; Magnetic analysis; Magnetic separation; Magnetic shielding; Nondestructive testing; Perturbation methods; Physics computing; Sensitivity analysis;
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-06.2006.1633134