A Geometrical Approach of 3-D FEA for Educational Purposes Applied to Electrostatic Fields

Rossi, Luiz Natal; Silva, V.C.; Martinho, Lucas Blattner; Cardoso, J.R.

doi:10.1109/tmag.2007.916164

Cited by 2 publications

(1 citation statement)

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“…To avoid the rigorous mathematical derivations of variational calculus and make the finite element method more attractive to students, J.R. Cardoso and his collaborators have developed a new mathematical approach to finite-element analysis based on the direct integration of Maxwell's equations [10] [11]. In recent years, general-purpose mathematical software packages like MATLAB have successfully been used in the teaching of electromagnetics [12] [13].…”

Section: Introductionmentioning

confidence: 99%

Simulated Experiments for Teaching CAD Techniques Using Analytic and Finite Element Solutions of Electromagnetic Two-Dimensional Problems with Longitudinal Symmetry

Nogueira¹,

Weinert²,

Maldonado³

2019

JEMAA

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The paper describes an approach to teaching low-frequency electromagnetic CAD techniques to undergraduate students pursuing a degree course in electrical engineering. The simulated experiments make use of a two-dimensional open-access software based on the finite-element method. At the laboratory meetings, the problems are initially solved analytically. Upon this, students learn how to create the numeric model and how to define the sequence of field problems that lead to the required solution. Simulation tasks based on a force-producing electromagnet are used to introduce numeric techniques to determine magnetic field distribution, evaluation of energy storage and generation of magnetic forces. The nature of the magnetic force generated in the air gaps of the C-core electromagnet is explained in detail. Magnetic forces are calculated by the classical and weighted versions of the method of Maxwell stress tensor. The paper provides all the basic elements required for further exploration of devices with longitudinal symmetry. Journal of Electromagnetic Analysis and Applications involving non-homogeneous, non-linear and time-dependent problems has been determinant in the choice of this numerical method. The manuscript takes the reader to a step-by-step simulation journey that provides all the basic elements required for the analysis of electromagnetic devices with longitudinal symmetry.A. F. L. Nogueira et al.

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