Open AccessBook
Hysteresis in magnetism : for physicists, materials scientists, and engineers
Giorgio Bertotti
- 01 Jan 1998
640
TL;DR: The Magnetization Process: Coherent Rotation and Domain Wall Motion as discussed by the authors The Magnetic Hysteresis in Preisach Systems: Collections of Bistable Units and Vector Relations.
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Abstract: Introduction: Magnetic Hysteresis. Types of Hysteresis. Maxwells Equations and Thermodynamics: Maxwells Equations in Magnetic Media. Magnetic Work and Thermodynamics. Magnetic Free Energy: Exchange and Anisotropy. Micromagnetics. Magnetic Domains and Domain Walls. The Magnetization Process: Coherent Rotation. Domain Wall Motion. Magnetization Curves. Coercivity Mechanisms. Eddy Currents. Preisach Systems: Collections of Bistable Units. Hysteresis in Preisach Systems. Appendixes: Systems of Units. Vector Relations. Reciprocity Theorems. Micromagnetic Parameters. Stochastic Processes. Bibliography. Index.
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Citations
Transient Thermal Lumped Parameter Model of an Electrical Excited Synchronous Machine with Forced Air Cooling for Shape optimization
Hagen Spielmann
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TL;DR: In this paper , a detailed lumped parameter model with transient calculation was built for the thermal analysis of an electrical excited synchronous machine, where the machine is cooled with a forced air stream which flows axial through the machine.
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Hysteresis and Loss Prediction for High-Permeability Grain-Oriented Electrical Steel by Material Characterization
B. Daniels,T.T. Overboom,Elena A. Lomonova +2 more
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TL;DR: In this article, the magnetic loss in the rolling direction (RD) of a sheet of H105-30 HiB GOES for flux densities up to 1.9 T, and frequencies up to 300 Hz was predicted.
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An application of the time-step topological model for three-phase transformer no-load current calculation considering hysteresis
TL;DR: In many transformer applications, it is necessary to have a core magnetization model that takes into account both magnetic and electrical effects as mentioned in this paper, which becomes particularly important in three-phase transformer applications.
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Three-Dimensional Magnetic Hysteresis Modeling Based on Vector Hysteresis Operator
TL;DR: Based on the minimum energy principle of magnetization stable state, the authors presents a definition of three-dimensional (3-D) hysteresis operator by analyzing the magnetization state of the magnetic particles.
Modelling of Hysteresis Phenomenon Based on the Elemental Operator and Wind-Rose Method
Nana Duan,Weijie Xu,Ting Yuan,Shuhong Wang,Yongjian Li,Jianguo Zhu +5 more
- 27 Nov 2018
TL;DR: In this article, a vector hysteresis operator based on the physical mechanisms of the magnetic material is introduced, and the magnetic properties of soft magnetic composite SOMALOY™ 500 under different rotational excitations have been simulated and compared with the experimental results.
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