Abstract
To express the polycrystalline characteristics of magnetic material in numerical calculation, three-dimensional polycrystalline magnetic field analysis is proposed here. LLG calculation for magnetic domain structure should be used, but it usually has a mesh explosion issue for a lot of crystal grains magnetic material. A local coordinate system is set in each crystal grain to express the crystal magnetic anisotropy and a whole coordinate system is set in the polycrystalline of magnetic material to express magnetic flux continuity. Coordinate transform is used to express each physical parameter defined in the different for coordinate system. Each crystal is assumed to have the same magnetic characteristics as B–H curve of a single crystal. Finite element method is used for its numerical calculation, because magnetic flux density distribution is obtained in the minimum electromagnetic energy condition. Two cases of GO steel sheet of 80 mm square are picked up as 2 crystal grains and 56 crystal grains. Magnetic flux density distribution of the GO steel is measured by needle method for magnetic flux density and H-coil for magnetic field. The proposed calculation result of magnetic flux density distribution expresses well the measured result.
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References
Brown, W.F.: Micromagnetics. Wiley, New York (1963)
Taguchi, S., Yamamoto, T., Sakakura, A.: New grain-oriented silicon steel with high permeability “Orientcore HI-B”. IEEE Trans. Magn. 10(2), 123–127 (1974)
Fujisaki, K., Tamaki, T.: Three-dimensional polycrystal magnetic field analysis of thin steel. IEEE Trans. Magn. 45(2), 687–693 (2009)
Chikazumi, S.: Physics of Ferromagnetism. Shoukabou, Tokyo (1978). (in Japanese)
Hubert, A., Schafer, R.: Magnetic Domain. Springer, Berlin (1998)
Bunge, H.J.: Texture Analysis in Materials Science. Butterworth and Co, London (1982)
Crouch, T.: Matrix Method Applied to Engineering Rigid Body Mechanics, Pergamon (1981)
Goss, N.P.: Electrical Sheet and Method and Apparatus for its Manufacture and Test, U.S. Patent No. 1965559 (1934)
Cullity, B.D.: Elements of X-ray diffraction. Addison-Wesley Publication Company Inc, Reading, Massachusetts (1977)
Pfützner, H., Krismanic, G.: The needle method for induction tests: sources of error. IEEE Trans. Magn. 40(3), 1610–1616 (2004)
Enokizono, M., Tanabe, I., Kubota, T.: Localized distribution of two-dimensional magnetic properties and magnetic domain observation. J. Magn. Magn. Mater. 196–197, 338–340 (1999)
Fujisaki, K., Tamaki, T., Yasuhiro, S.: Comparison of 3D polycrystal magnetic field analysis and distributed magnetic measurement. IEEJ (The Institute of Electrical Engineers of Japan) Trans. Fundam. Mater. 129(11). 821–826 (2009) (in Japanese)
Fujisaki, K.: Crystal grain shape aspect of grain oriented steel by three dimensional polycrystalline magnetic field analysis. J. Jpn. Soc. Appl. Electromagn. Mech. 21(2), 129–134 (2013). (in Japanese)
Fujisaki, K.: IEEJ Trans. Fundam. Mater. 133(11), 585–590 (2013) (in Japanese)
Investigating R&D Committee of Magnetic Material for Electromagnetic Actuator, “Magnetic Material and Its Evaluation Technology for Electromagnetic Actuator,” Technical report of IEEJ, No. 1397, 11 (2017) (in Japanese)
Fujisaki, K.: Polycrystalline magnetic field analysis of electrical steel for magnetic multi-scale. In: The 42nd Annual Conference on MAGNTICS in Japan, 13pC-2, 2018.9
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Fujisaki, K. (2019). Polycrystalline Magnetic Calculation. In: Fujisaki, K. (eds) Magnetic Material for Motor Drive Systems. Engineering Materials. Springer, Singapore. https://doi.org/10.1007/978-981-32-9906-1_12
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DOI: https://doi.org/10.1007/978-981-32-9906-1_12
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