..., proven very useful. Among them, the finite element method is powerful means, because of the accurate treatment of fine details or demanding material interfaces (Jin, 2014 ; Bertoluzzo et al., 2022). However, for planar bandgaps, the regular tetrahedral elements cannot offer the necessary...

... independently and are interconnected by a classical Schwarz domain decomposition scheme. The results are compared with the conventional polynomial finite element method (FEM). Findings The new methodology is reliable and efficient. The obtained solutions of the fields are in good agreement with the ones...

... mathematical model of the combined welding process is presented, taking into account all relevant nonlinearities. The model is then solved numerically by the finite element method. The methodology is illustrated with an example, the results of which are compared with experiment. Findings The proposed model...

...-35A N40SH Athanasios Sarigiannidis can be contacted at: thsarig@central.ntua.gr 03 08 2017 24 12 2017 29 03 2018 03 04 2018 © Emerald Publishing Limited 2018 Emerald Publishing Limited Licensed re-use rights only Finite element methods Analytical...

... with a new DC machine topology to reduce the copper volume through the suppression of the classical stator end-windings. The use of Claw-Pole inductors ensures this copper reduction. Optimization Finite element methods Claw poles Direct current machines Permeance network The design...

...Sebastian Grabmaier; Matthias Jüttner; Wolfgang Rucker Purpose Considering the vector Helmholtz equation in three dimensions, this paper aims to present a novel approach for coupling the finite element method and a boundary integral formulation. It is demonstrated that the method is well-suited...

... are compared with those obtained by using numerical procedures. For complex shapes of the object, the MAT-MI images have been calculated with the help of the finite element method and time reversal algorithm. Findings The finite element model developed for a MAT-MI forward problem has been validated...

... current losses of damper winding in various conditions are calculated by using the finite element method. Findings It is identified that the cogging effect, pole shoe magnetic saturation degree, pole arc coefficient and armature reaction are the main factors that affect the eddy current loss...

.... Van Quang Dinh can be contacted at: van-quang.dinh@g2elab.grenoble-inp.fr 02 11 2016 20 02 2017 27 04 2017 02 05 2017 © Emerald Publishing Limited 2017 Emerald Publishing Limited Licensed re-use rights only Finite element methods Parallel computing CUDA...

...: the so-called “separate method” and the “combined method” for solving the equation system. When using the finite element method (FEM), the elapsed time for solving a problem is dominated by the conjugate gradient (CG) iteration process. The motivation for treating the equations of the voltage excitations...

.... The mean magnetic path of each core and the DC biasing current is represented by l and I_d, respectively. Following Ampere’s Law, it can be written: (5) w d I d − w c i = H 1 l , Finite element methods Hysteresis Fault current...

...@gmail.com 14 03 2016 11 07 2016 08 08 2016 © Emerald Group Publishing Limited 2016 Emerald Group Publishing Limited Licensed re-use rights only Optimal control Numerical analysis BLDC motor Finite element methods Nowadays, the brushless DC motors (BLDC) have...

... element methods Permanent magnets Magnetic anisotropy Flux reversal Halbach Partitioned stator Due to high torque density and high efficiency, permanent magnet (PM) machines are widely used (Chau et al., 2008). Compared with the rotor-PM machines, the stator-PM machines can avoid...

... current model is based on a finite element method and considers the three-dimensional (3D) eddy current distribution in the steel sheets. The hysteresis losses are computed by a static Preisach vector model. Findings – It is found that under stator-sided inverter supply the eddy current losses do...

...Professor Oszkár Bíró, Professor David A. Lowther and Dr Piergiorgio Alotto; Patrick Dular; Mauricio V. Ferreira da Luz; Patrick Kuo-Peng; Laurent Krähenbühl Purpose – The purpose of this paper is to develop a subproblem finite element method for progressive modeling of lamination stacks...

... because of different cross sections of circuit boards at different heights. Therefore the numerical 3D field-and-circuit method based on finite element method was applied. The wide range of dimensions in computation system, ranging from 0.15 mm (print paths) to 0.22 m, made it necessary to use the mesh...

... to achieve biocompatibility and long-life. A finite element method is used to simulate the proposed hybrid model with commercially available Ansoft HFSS software. Findings – The antenna is miniaturized, having dimensions of 10×8.4×2 mm3 (width×height×thickness mm3). The resonance frequency...

.... The machine is modelled with a 2D finite element method and the iron losses are computed with a previously developed accurate method. Findings – The uncertainties propagate in different ways to the different components of losses, i.e. eddy current, hysteresis, and excess losses. The propagation is also...

...@ulg.ac.be © Emerald Group Publishing Limited 2015 Finite element methods Eddy currents Adaptive techniques Decomposition method Inductors Model refinement Subproblem method Instead of solving a complete inductor problem, including coil conductors and magnetic cores, it is here...

.../approach – In the field-circuit approach the distribution and changes of magnetic flux density in the motor are computed using a time-stepping finite element method. The additional losses in each element are evaluated at different frequencies. Findings – An approximate analytical formulation...