...Jeno Takacs Purpose This paper aims to present an analytical way of formulating the vital parameters of an equivalent hysteresis loop of a composite, multi-component magnetic substance. By using the hyperbolic model, the only model, which separates the constituent parts of the composite magnetic...

... - 523 . Brillouin , M.L. (1927), “ Les moments de rotation et le magnetisme dans la mechanique ondolatoire ”, Journal de Physique et Le Radium , Vol. VIII , p. 74 . Cohen , A. (1991), Rheologica Acta , Vol. 30 , pp. 270 - 273 . Dargazani , R. , Hornes , K...

...Xiayu Zheng; Yuhua Wang; Dongfang Lu Purpose – The purpose of this paper is to model the particle capture of elliptic magnetic matrices for parallel stream type high magnetic separation, which can be a guidance for the development of novel elliptic cylinder matrices for high-gradient magnetic...

... specification for cross-vendor support. The basis for simulating magnetization dynamics in ferromagnetic bodies is the micromagnetic model, which is based on the following Landau-Lifshitz-Gilbert (LLG) equation (Bertotti, 1998): Equation 1 where m ( r , t) is the magnetization vector field normalized...

...Alessio Monti; Luca Scorrano; Simone Tricarico; Filiberto Bilotti; Alessandro Toscano; Lucio Vegni Purpose – The purpose of this paper is to show how metamaterials with extreme values of permittivity and permeability, may be effectively used to design artificial magnetic conductors (AMC...

...Andrzej Demenko; Kay Hameyer; Wojciech Pietrowski; Livio Šušnjić; Krzysztof Zawirski; Adam Warzecha; Witold Mazgaj Purpose The aim of the paper is to present the approximation methods of the magnetizing characteristics of the salient pole synchronous machines with the fundamental MMF harmonics...

...Andrzej Demenko; Kay Hameyer; Wojciech Pietrowski; Livio Šušnjić; Krzysztof Zawirski; Peter Offermann; Kay Hameyer Purpose Due to the production process, arc segment magnets with radial magnetization for surface‐mounted permanent‐magnet synchronous machines (PMSM) can exhibit a deviation from...

...Slawomir Wiak; Slawomir Wiak; Anna Firych‐Nowacka; Paolo Di Barba Purpose The purpose of this paper is to create computer models of magnetic micro‐ and nano‐fibres. The fibres are the base of textronics devices, such as sensors and actuators. The authors show how one can avoid painstaking work...

...Oszkár Bíró; David A. Lowther; Piergiorgio Alotto; Norio Takahashi; Hirofumi Shinagawa; Daisuke Miyagi; Yuhito Doi Purpose The purpose of this paper is to examine the mechanism of the increase or decrease of eddy current loss of the segmented Nd‐Fe‐B sintered magnets without insulation...

... element computation of the deformation of ferromagnetic material taking into account magnetic forces and magnetostriction ”, IEEE Trans. Magn. , Vol. 40 No. 2 , pp. 565 ‐ 8 . van Leeuwen , H.‐J. (1921), “ Problèmes de la théorie électronique du magnétisme ”, J. Phys. Radium, Sér. VI , Vol...

...Andrzej Demenko; Guest Co‐editors: Kay Hameyer; Stefan Kulig; Lech Nowak; Krzysztof Zawirski; Witold Mazgaj Purpose The aim of this paper is to present a new relatively simple model of the rotational magnetization process in anisotropic sheets. Design/methodology/approach The surface...

... specimen, and the locus of the magnetic flux density vector has been controlled by a digital measurement system. An inverse vector Preisach hysteresis model has been developed and identified by using the measured data. Findings Finally, the inverse model has been inserted into a finite element...

... elliptic model. An additional condition is introduced to fix the angle between the flux density and magnetic field intensity. Findings The model is found to yield good agreement with measurements in case of a special material for which measured curves for intermediate angles are available. Research...

...Patrick Dular; Maurizio Repetto; E. Della Torre; E. Cardelli; L.H. Bennett Purpose The magnetic modeling of materials has been focused on computing magnetization and forces in devices. With increasing efforts to make energy efficient devices, attention must now be paid to hysteresis losses...

...Patrick Dular; Maurizio Repetto; F. Dughiero; M. Forzan; E. Sieni Purpose The purpose of this paper is to describe how numerical models of human body have been applied for the evaluation of current density induced by strong magnetic field, to verify the respect of the basic restriction proposed...

... modelling or into simulations of electro‐magnetic circuits. The lower part of Figure 4 shows the results of the simulation: the virgin curve up to 80 per cent saturation followed by a demagnetisation process. Figure 5 shows measurement and simulation for a NiZn‐ferrite torus. A commercial ferrite...

...Sławomir Wiak; Ewa Napieralska‐Juszczak; Sławomir Wiak; Anna Firych‐Nowacka; Krzysztof Smółka Purpose The purpose of this paper is to describe research into the problem of creating computer structural models of magnetic microfibres. The main goal of the research is to create the universal...

... Laboratory data and the electrical properties of tissues were modeled using 4‐Cole‐Cole approximation with parameters taken from Gabriels. Findings The paper presents the general methodology which can be used in magnetotherapy to estimate a magnetic flux density of stimulators and value of current...

...Sławomir Wiak; Ewa Napieralska‐Juszczak; A.M. Michaelides; J. Simkin; P. Kirby; C.P. Riley Purpose The purpose of this paper is to promote practical methods for the numerical modelling of hard magnetic materials and soft ferromagnetic materials in an engineering context (design of electrical...

...Sławomir Wiak; Ewa Napieralska‐Juszczak; J.L.G. Janssen; J.J.H. Paulides; E.A. Lomonova Purpose The purpose of this paper is to present novel analytical expressions which describe the 3D magnetic field of arbitrarily magnetized triangular‐shaped charged surfaces. These versatile expressions model...