... A coupled 3D finite element model is proposed, combining electromagnetic and transient thermal analyses to account for eddy-current losses, temperature rise and torque reduction. The model includes full geometry and armature reaction effects. A prototype is designed and experimentally tested to validate...

...Matteo Emiliani; Luca Di Rienzo; Shingo Hiruma; Isacco Figoni; Carlo de Falco; Tetsuji Matsuo Purpose This study aims to extract a reduced order model based on the Cauer ladder network ( CLN ) method from a partial element equivalent circuit ( PEEC ) formulation of the eddy current problem...

... as a kind of symmetry in 2D, too, as it implies the equality of currents in given wire cross-sections. 2D numerical simulation of eddy currents in multiconductors dates back to the early ’80s when three dimension (3D) calculations were out of reach anyway (Konrad et al., 1982 ; Preis, 1983...

...Valentin Hanser; Markus Schöbinger; Karl Hollaus Purpose This study aims to introduce an effective material to efficiently and accurately solve the eddy current problem in laminated iron cores considering circuit coupling. Design/methodology/approach In the first step, a representative cell...

... of this article (for both commercial and non-commercial purposes), subject to full attribution to the original publication and authors. The full terms of this licence maybe seen at Link to the terms of the CC BY 4.0 licence. Electromagnetic shielding Thin shell model Effective material Eddy currents...

.... A simplified 3D analytical method based on the Amperian model and image theory is proposed by Messadi et al. (2015) to calculate the eddy currents induced in a conducting plate, neglecting the magnetic reaction field. In Messadi et al. (2020) , an improved 3D electromagnetic model...

... equations. Additionally, since we consider the case of small velocities at which the magnetic Reynolds number is much smaller than 1, the weak reaction approach (WRA) is applied. According to this approach, the secondary magnetic field generated by the eddy currents is neglected and only the primary...

...Mohammed Messadi; Larbi Hadjout; Noureddine Takorabet Purpose This paper aims to develop a new 3D analytical model in cylindrical coordinates to study radial flux eddy current couplers (RFECC) while considering the magnetic edge and 3D curvature effects, and the field reaction due to the induced...

...Stjepan Frljić; Bojan Trkulja; Ana Drandić Purpose The purpose of this paper is to present a methodology for calculating eddy current losses in the core of a single-phase power voltage transformer, which, unlike a standard power transformer, has an open-type core (I-type core). In those apparatus...

... based on the eddy current principle. The energy of the overhead power lines is accumulated by injecting mechanical energy periodically, which can be used to simulate real galloping characteristics regardless of the complex nonlinear aerodynamic load simulation. In addition, the tests no longer rely...

... and radius of the levitated coil are the main factors influencing the levitation effect, which will be simulated or calculated in the next section. © Emerald Publishing Limited 2022 Emerald Publishing Limited Licensed re-use rights only Eddy currents Electromagnetic fields Finite element...

... Daniel Roger can be contacted at: daniel.roger@univ-artois.fr 29 06 2021 14 11 2021 09 01 2022 11 01 2022 Figure 2. Structure of an SST cell: a medium frequency transformer is placed between two IGBT bridges Transformers Thermal design Iron losses Eddy currents...

...Valentin Hanser; Markus Schöbinger; Karl Hollaus Purpose This work introduces an efficient and accurate technique to solve the eddy current problem in laminated iron cores considering vector hysteresis. Design/methodology/approach The mixed multiscale finite element method based on the based...

.../approach The industrial inductor is simulated with the CLN method for different meshes. Meshes considering skin effect are compared with equidistant meshes. The inductor is also simulated with the eddy current finite element method (ECFEM) for frequencies 1 kHz to 1 MHz. The solution of the CLN method...

... system of differential algebraic equations is reformulated into a system of ordinary differential equations (ODE). The ODE system is integrated in time by using explicit time integration schemes. The purpose of this paper is to investigate explicit time integration for eddy current problems with respect...

... be contacted at: tobita.miwa.73x@st.kyoto-u.ac.jp 28 02 2021 25 06 2021 09 08 2021 © Emerald Publishing Limited 2021 Emerald Publishing Limited Licensed re-use rights only Model order reduction Eddy currents Magnetic saturation In this work, we numerically study...

... Eddy currents Applied electromagnetism Finite element analysis Linear machine © Emerald Publishing Limited 2021 Emerald Publishing Limited Licensed re-use rights only 01 08 2020 23 12 2020 02 06 2021 30 07 2021 01 08 2021 Sharmili Das can be contacted...

... of eddy currents in the conductive parts of the rotor. The analysis includes their characterization and the setup of a numerical model using finite element method. The adopted methodology is based on the separation of the losses which allows a better understanding of the physical phenomena. Each type...

...Mohammed Messadi; Larbi Hadjout; Youcef Ouazir; Hakim Bensaidane; Noureddine Takorabet; Thierry Lubin; Smail Mezani Purpose This paper aims to propose a new 3D electromagnetic model to compute translational motion eddy current in the conducting plate of a novel linear permanent magnet (PM...

... ) = λ Δ T + p ( x , y , z , t ) Eddy currents Thermal analysis Permanent magnet machine Induction heating Quasi-3D analytical solution Green’s function Transverse edge effect Induction heating is currently used in many metallurgical processes [ 1 ], surface heat...