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

Yang, Kai; Tsuchida, Yuji; Todaka, Takashi; Enokizono, Masato

doi:10.1109/tmag.2011.2173756

Cited by 35 publications

(21 citation statements)

References 7 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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“…Shrink-fitting and the magnetic and centrifugal forces exert considerable stress on the iron cores of electrical machines [3]. Various previous studies have reported the deviation in the magnetic characteristics and the power loss densities when the material is under mechanical stress [4]- [6]. The theory of coercive field [7], based on the statistical analysis of the magnetic objects, provides a strong dependency between coercive field and the magnetostrictive strain.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mechanical Stress on Excess Loss of Electrical Steel Sheets

et al. 2015

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Effect of mechanical stress on the magnetic loss of electrical steel sheets is analyzed utilizing the statistical loss theory. The focus of the study is on the variation of the excess loss component with the applied stress and its correlation with the hysteresis loss. The model and its correlation are validated by performing comprehensive measurements at various combination of induction levels, frequencies and stresses. It is found that the excess losses can be modeled with sufficient accuracy by their correlation with the hysteresis losses over a wide range of stresses, frequencies and flux densities.

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

Cited by 35 publications

References 7 publications

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

Magnetomechanical Model for Hysteresis in Electrical Steel Sheet

Effect of Mechanical Stress on Excess Loss of Electrical Steel Sheets

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

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