...Shengze Gao; Xiaojun Zhao; Yanhui Gao; Wei Zhu; Yu Miao; Kazuhiro Muramatsu Purpose The purpose of this study is to propose a frequency-domain finite element method ( FEM ) coupled with a dynamic hysteresis model to improve the simulation accuracy of magnetic fields and iron losses of amorphous...

... 2025 Emerald Publishing Limited Licensed re-use rights only FEM Eddy currents Litz wire Complex permeability Figure 1. Schematic model domain of a planar eddy-current problem (top) and an arbitrary closed loop for forming Faraday’s law, in which the voltage drop manifests (bottom...

... with the fringing field, the purpose of this paper concerns a Galerkin-FEM procedure for deformable element deflection recovery. The deflection profiles are reconstructed by assigning the dielectric properties of the moving element. Furthermore, the device’s use conditions and the deformable element’s mechanical...

..., reduction of core losses is achieved by using a multipart open-type core that is created by merging a larger number of leaner cores. Design/methodology/approach 3D FEM approach for calculation of eddy current losses in open-type cores based on a weak AλA formulation is presented. Method...

... machines. The paper focuses on the comparison of losses in the core of a machine with a classical stator core made of an iron–silicon material (Fe–Si) and a new one made of a modern METGLAS material. Design/methodology/approach Computer models of the prototype motors were created using FEM...

... , α i − θ s 2 + d ] J i , left      θ ∈ [ α i + θ s 2 − d , α i + θ s 2 ] Electromagnetic fields Finite element analysis Dual-rotor machine Permanent magnet synchronous machine Analytical model FEM Electromagnetic...

... For verifying the effectiveness of analytical model, the results are compared with those obtained from the 2D finite element method (FEM). The influence of magnetic saturation is taken into account by associating the sub-domain analysis result with the nonlinear B-H properties of stator and rotor iron...

... cause part-cycle, half wave saturation of a power transformer’s core. Practical measurements and finite element matrix (FEM) simulation were carried out using three laboratory-scale, untanked single-phase four limb transformers resembling real power transformers in terms of the core steel and parallel...

... N_s and N_r is given as: 24 08 2017 12 10 2017 11 12 2017 14 02 2018 15 02 2018 © Emerald Publishing Limited 2018 Emerald Publishing Limited Licensed re-use rights only Finite element simulation Electric motors FEM Torque Inductance...

.../methodology/approach The optimal design of the stator and rotor can be enhanced using both a response surface method (RSM) and finite element method (FEM). In addition, a magnetizer system is optimally designed for the magnetization of permanent magnets for use in the motor. Findings The criteria...

...: (3) σ ¯ ¯ = 2 μ ε e ¯ ¯ + λ t r ( ε e ¯ ¯ ) I Ewa Napieralska-Juszczak can be contacted at: ewa.napieralskajuszczak@univ-artois.fr FEM Stress analysis Conductivity Conductors The present paper investigates...

...@aalto.fi © Emerald Group Publishing Limited 2015 FEM Soft magnetic materials Ferromagnetic materials Magnetic anisotropy Non-oriented (NO) electrical steel sheets are usually composed of iron doped with silicon. Although their manufacturing process tends to confer isotropic...

... conditions: (Equation 9) © Emerald Group Publishing Limited 2015 FEM Eddy current Boundary conditions Magnetic vector potential Electrical conductivity Electrical steels are usually categorised as grain oriented and non-grain oriented. The core losses in non-oriented sheets...

... normal conditions as well as after a post-fault reconfiguration, following an open-circuit fault in the inverter. For this purpose, a Matlab/Simulink model and three-phase induction motor models using a finite element method (FEM) software were developed. Besides, some experimental tests were conducted...

... armature of a tubular machine. They also studied the iron loss in the stator magnetic circuit of the same machine (Amara et al., 2005b). © Emerald Group Publishing Limited 2015 FEM Permanent-magnet machine Iron losses Fundamentally, the iron loss prediction and minimization...

... have been studied by means of specific multi-body codes. The electric propulsion system has been designed both with analytical and FEM methods. Findings – A special three-wheeled tilting vehicle layout equipped with a four-bar linkage connection has been developed. A particular synchronous...

... optimisation of SPBLDCM and electromagnetic devices in general. The quality of the PSO model has been proved through the data analysis of the prototype and optimised solution. At the end, the quality of the PSO solution has been again proved by comparative analysis of the two motor models using FEM...

... close by the analytical one. No global optimization is required. A local optimum is sufficient. © Emerald Group Publishing Limited 2014 FEM Optimal design Applied electromagnetism Electrical power systems (Equation 8) where i _max =i ₀...

...), subjects were asked to bend their trunk forward up to 45°, maintain the flexed trunk posture for 2 seconds, and then return to their natural standing posture, as shown in Figure 3 . © Emerald Group Publishing Limited 2014 FEM Electromyography Low back pain (LBP) is a major health...

... application owing to large torque and three-wire connection with the standard full-bridge power converter. However, there is not literature to disclose its model due to the complicated mutual inductance coupling. The FEM model is a time-consuming method to analyze this motor. For the first time, this paper...