1,721,317 research outputs found
Laminated Core Modelling uder Rotational Excitations Including Eddy Currents and Hysteresis
No full textAnalysis of laminated cores through a directly coupled 2d-1d electromagnetic field formulation
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Influence of Constitutive Parameters in Mn-Zn Ferrites: a Modellig Analysis by Homogenization Techniques
No full textA numerical procedure, based on a mathematical homogenization technique, is applied to investigate the influence of microstructure on the impedance and classical loss behavior versus frequency in soft ferrites. It is found that classical losses result to be mainly affected by grain resistivity and by grain boundary thickness
A Potential-Based Formulation for Motion-Induced Electric Fields in MRI
No full textThis paper presents a potential-based formulation conceived to estimate the electric field induced in a human body moving through the stray stationary magnetic field produced by magnetic resonance scanners. Two different descriptions are adopted, giving rise to two different driving terms, and the corresponding electromagnetic problems are solved numerically, according to a finite element approach. The application of the procedure recommended by the International Commission on Non-Ionizing Radiation Protection guidelines to perform the exposure assessment is discussed, and some examples, which refer to a realistic situation, are finally presente
A Nonlinear Voltage Driven Field Approach for the Analysis of Closed Slot Induction Motors
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