Influence of Stress on Vector Magnetic Property Under Alternating Magnetic Flux Conditions

Kai, Kai; Tsuchida,; Todaka,; Enokizono,

doi:10.1109/tmag.2011.2158397

Cited by 33 publications

(17 citation statements)

References 6 publications

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“…The deformation and deviation in the BH-loop of an electrical steel sheet due to stress are evident from various previous studies [1]- [3]. These effects of stress on the material properties, especially on the BH characteristic [4], [5], the iron losses [3], [6], [7] and the vibration [8], [9], are detrimental for an electrical machine [10]- [12]. In order to accound for these effects, a comprehensive magnetic and mechanics coupled (i.e.…”

Section: Introductionmentioning

confidence: 96%

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

et al. 2016

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A coupled magneto-mechanical model for hysteresis in an electrical steel sheet is presented. The foundation of the model developed is the classical Sablik-Jiles-Atherton (SJA) model. A comprehensive model for the stress dependent magnetostriction is also proposed and implemented in the SJA model. Improvements in the SJA model as well, are proposed and validated with simultaneous measurements of magnetostriction, magnetic field and flux density. The measurements were performed on a single electrical steel sheet under various levels of stress (-35 MPa to 100 MPa). The proposed model was found to adequately model the permeability change and the local bowing of the BH-loop due to stress.

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Section: Introductionmentioning

confidence: 96%

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

et al. 2016

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“…With this system, it is possible to measure magnetic properties before and after applying the mechanical stress in the rolling and transverse directions. A method for evaluating 2-D magnetostriction has previously been used to determine the magnetostriction in an arbitrary direction within a plate [7], [8]. However, the magnetostriction in an arbitrary direction in a plate under stress has never been reported.…”

Section: Introductionmentioning

confidence: 99%

Influence of Biaxial Stress on Vector Magnetic Properties and 2-D Magnetostriction of a Nonoriented Electrical Steel Sheet Under Alternating Magnetic Flux Conditions

et al. 2014

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Magnetic properties of nonoriented electrical steel sheets are influenced by mechanical stress because they exhibit the phenomenon of magnetostriction. Therefore, it is necessary to clarify the relationship between magnetic properties and magnetostriction under mechanical stress. This paper presents the results of measurements of the vector magnetic properties and the magnetostriction of a nonoriented electrical steel sheet under biaxial stress. The loci of the magnetic field strength vector and the 2-D magnetostriction are measured under both biaxial stresses. The magnetic power loss and the peak-to-peak value of the magnetostriction in an arbitrary direction decreased due to the applied biaxial tensile stress. It can be concluded that it is possible to improve the magnetic properties and reduce the magnetostriction of an electrical steel sheet by applying biaxial tensile stress.Index Terms-2-D magnetostriction, alternating magnetic flux condition, biaxial stress, nonoriented electrical steel sheet, uniaxial stress, vector magnetic property.

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“…Most of the works investigate only the relationships between the magnetic properties and mechanical stresses and do not emphasize the variabilities that can be introduced. The work presented in [5], reported that the vector magnetic property of the electrical steel sheet depends on the mechanical stress and the direction of the magnetic field excitation and has to be taken into account when designing the electrical machine. Moreover, the work in [6] describes a method for detecting stress on the surface of magnetic materials, such as steels, using measurements of magnetic Barkhausen emissions.…”

Section: Introductionmentioning

confidence: 99%

Stochastic Modeling of Soft Magnetic Properties of Electrical Steels: Application to Stators of Electrical Machines

2012

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To take account of the uncertainties introduced on the soft magnetic materials properties (magnetic behavior law, iron losses) during the manufacturing process, the present work deals with the stochastic modeling of the magnetic behavior law B-H and iron losses of claw pole stator generator. Twenty eight (28) samples of slinky stator (SS) coming from the same production chain have been investigated. The used approaches are similar to those used in mechanics. The accuracy of existing anhysteretic models has been tested first using cross validation techniques. The well known iron loss separation model has been implemented to take into account the variability of the losses. Then, the Multivariate Gaussian distribution is chosen to model the variability and dependencies between identified parameters, for both behavior law and iron loss models. The developed stochastic models allow predicting a 98% confidence interval for the considered samples.

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Influence of Stress on Vector Magnetic Property Under Alternating Magnetic Flux Conditions

Cited by 33 publications

References 6 publications

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

Influence of Biaxial Stress on Vector Magnetic Properties and 2-D Magnetostriction of a Nonoriented Electrical Steel Sheet Under Alternating Magnetic Flux Conditions

Stochastic Modeling of Soft Magnetic Properties of Electrical Steels: Application to Stators of Electrical Machines

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