... network (CLN) model order reduction method in 2D. This approximates the eddy current effect such as the skin and proximity effect for the whole wire. This is then projected to a mesh which does not include each strand. The 3D fields are efficiently calculated with the CLN method and are projected...

... of the domain are fully aligned with the external magnetic field. Therefore, as magnetic field intensity (H) increases indefinitely, magnetization (M) tends to be a stable value, which is named the saturation magnetization (Ms). In some applications (e.g. eddy current brake, high torque motors), the M...

...) is solved by FEM. The eddy current density values are determined by (2) with the obtained values for φ. The DRSs are obtained by (1) for the defect shapes visualized in Figure 1 at the depths d = 2 mm and d = 10 mm. Figure 2 shows the DRS components Δ F x FEM...

...Zheng Xu; Jiamin Wu; Lu Li; Yucheng He; Wei He; Dengjie Yu Purpose Eddy currents are inevitable in magnetic resonance imaging (MRI) systems. These currents are mainly induced by gradient fields. This study aims to propose a fast analytical method to calculate eddy currents induced by frequently...

.... The upper frequency bound for the Cauer circuit is roughly proportional to N⁴ with N inductive elements, whereas the frequency bound for the finite element eddy-current analysis with uniform N elements is roughly proportional to N². Practical...

...Markus Schöbinger; Karl Hollaus; Joachim Schöberl Purpose This paper aims to improve the efficiency of a numerical method to treat the eddy current problem on a laminated material, where using a mesh that resolves each individual laminate would be too computationally expensive. Design...

... and the wall generates a resistive torque that is a consequence of the induced eddy currents in this barrier. Therefore, such induced resistive torque implies a reduction in the permanent magnet coupling performance, that is, its torque transmission capacity. Design/methodology/approach The developed...

...Neven Bulic; Livio Šušnjic Purpose This paper aims to present a simulation concept and an experimental verification of a novel sensor design for the shaft position measurement based on the eddy current principle and the phase-shift measurement. The simulation method for the sensor characteristic...

... Publishing Limited Licensed re-use rights only Eddy current Applied electromagnetism Inductance Inductor design Proper generalized decomposition Skin effect Rectangular conductors play an important role in planar transmission line structures, such as microstrip lines, coplanar strips...

...) σ₀: 3D FEM Edge element method Numerical simulation Eddy current Coupled phenomena Maxwell’s equation Electromagnetic fields We use the cylinder radius R, the solid body rotation U and the advective time R/U as scales for space, velocity and time...

... FEM Eddy current Boundary conditions Magnetic vector potential Electrical conductivity In this paper, randomness in interlaminar short circuits is addressed by performing several simulations on a 37 kW induction machine. This paper discusses the formulation of a novel surface boundary...

...Ivo Doležel; Nirmal Paudel; Subhra Paul; Jonathan Z. Bird Purpose – The purpose of this paper is to validate dynamic analytic force modeling techniques with experimental results. The performance of previously presented 2-D and 3-D eddy current models will be assessed when the steady-state models...

... – The paper suggests a new effective treatment of impedance boundary conditions. Alberto Paganini can be contacted at: alberto.paganini@sam.math.ethz.ch © Emerald Group Publishing Limited 2014 Eddy current Convolution quadrature Fast and oblivious algorithm Impedance boundary conditions...

... is used to measure the Wt-B curves with the Epstein sample stripes cutting by different angles to the rolling direction. A 2D FEM that considers the type of joints of the core and eddy current effect in the laminations is used to analyze the core loss with multi-angle Wt-B curves. Findings...

...Prof. Norio Takahashi; Norio Takahashi; Akira Akagi; Masanori Nakano; Yuhito Doi; Daisuke Miyagi Purpose – In the laminated core of transformer, motor, etc. each electrical steel sheet is usually insulated in order to reduce the eddy current loss. Raw steel sheets without insulation are sometimes...

...), Eddy Current Analysis and Validation in Electrical Engineering , Higher Education Press , Beijing (in Chinese). Cheng, Z. , Takahashi, N. , Forghani, B. , Gilbert, G. , Du, Y. , Fan, Y...

... for stress zone imaging and presents first reconstruction results. Further, the paper discusses several issues about stress zone imaging for the ongoing research. © Emerald Group Publishing Limited 2011 Stress zone Eddy current Inverse problem Electric machines Image sensors Steel...

...Rolf Blissenbach; Gerhard Henneberger Presents the calculation of the induced eddy currents in the conducting parts of transverse flux machines. Compared to conventional machines the transverse flux machine has a bigger torque, both with respect to volume and weight. For this reason...

...Karl Hollaus; Oszkár Bíró To circumvent the high computational costs of modelling each lamination to compute the eddy current distribution in three dimensions in conducting laminations, a simple method has been developed. The laminar nature of the eddy currents due to the magnetic leakage field has...

... involving A _i. n _i, e.g. The implications of these three choices are as follows: Eddy current Finite element method Uniqueness Vector potential formulations of Maxwell’s equations based on the Coulomb gauge have been used to good effect (Bíró and Preis, 1989...