... 2023 Emerald Publishing Limited Licensed re-use rights only Edge-coupled split ring resonators (EC-SRR) Finite element methods Metasurfaces Optimisation Wireless power transfer (WPT) The low efficiency of wireless power transfer (WPT) systems compared to the wired ones inevitably...

... 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...

... 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 methods Permanent magnet machine Eddy current loss Permanent magnet (PM) motors are among the most...

... 02 2018 © Emerald Publishing Limited 2018 Emerald Publishing Limited Licensed re-use rights only Optimization Finite element methods Claw poles Direct current machines Permeance network In automotive applications, emission performance standards and industrial competition...

...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...

.... The finite element method is a widely used numerical method for modeling and simulating physics. This method requires the discretization of the domain into a mesh containing a set of elements. Popular forms of elements are triangles in two dimension (2D) and tetrahedron in three dimension (3D). In this paper...

...: 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 hysteresis is utilized in the mathematical model of the SISFCL. Finite element methods Hysteresis Fault current limiter Jiles–Atherton hysteresis model SISFCL In present times, the size of power system networks has increased by many folds to meet the growing power demand of the modern...

... BLDC motor Finite element methods Nowadays, the brushless DC motors (BLDC) have a significant role among electric motors (Pillay and Krishnan, 1989 ; Wach, 2011). Recent papers introduce new concepts to provide control enhancements. The adaptive control was studied in the work by Aghili...

... Finite 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...

...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...

... 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...

... 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...

... 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...

...  _p=σ_p ( e  _q+ e  _{p). Dr Patrick Dular can be contacted at: Patrick.Dular@ulg.ac.be © Emerald Group Publishing Limited 2015 Finite element methods Eddy currents Adaptive techniques Decomposition method Inductors}...

.... 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...

... simulation. Design/methodology/approach – A homogeneous human body model is built and a representative wireless inductive charging system is used for the exposure assessment. The numerical simulation relies on finite element method with formulations in terms of the magnetic vector potential...