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Core Material Design of a High Performance Rotating Machine Considering Magnetic Anisotropy
Ikariga Atsushi,Enokizono Masato,Shimoji Hiroyasu,Yamashiro Hirofumi The Korean Institute of Electrical Engineers 2005 KIEE International Transactions on Electrical Mach Vol.b5 No.3
This paper deals with a new design method for a small-size rotating machine with high power. In order to achieve high performance, secondary excitation by Nd-Fe-B magnets and the grain oriented electrical steel sheets were selected and a new design using dual rotors is proposed. The outline of the high-performance rotating machine will be presented and the results of the finite element analysis by using this method combined with the E&SS modeling will be shown in the paper.
A New Moving-magnet Type Linear Actuator utilizing Flux Concentration Permanent Magnet Arrangement
Goto, Akira,Okamoto, Takuya,Ikariga, Atsushi,Todaka, Takashi,Enokizono, Masato The Korean Institute of Electrical Engineers 2012 Journal of Electrical Engineering & Technology Vol.7 No.3
This paper presents a moving-magnet type linear actuator designed by using flux concentration type permanent magnet arrangement, which can generate higher magnetic flux density in air-gap. In this construction, detent force which is induced by both slot-effect and end-effect becomes larger due to strong attractive forces. To reduce cogging force we have employed a modular mover structure of two magnetic pole sections connected with a center yoke. The improved motor performance is demonstrated with the prototype machine.
A Measurement System for Two-Dimensional DC-Biased Magnetic Property
Enokizono, Masato,Takahashi, Syuichi,Ikariga, Atsushi The Korean Institute of Electrical Engineers 2002 KIEE International Transactions on Electrical Mach Vol.b2 No.4
Up to now, DC-biased magnetic properties have been measured in one dimension (scalar). However, scalar magnetic properties are insufficient to clarify DC-biased magnetic properties because scalar magnetic properties can only impossibly consider the phase difference between the magnetic flux density B vector and the magnetic field strength H vector. Thus the magnetic field strength H and magnetic flux density B in magnetic materials must be directly measured as a vector quantity (two-dimensional). This paper presents measurement system to clarify the two-dimensional DC-biased magnetic properties.
A New Moving-magnet Type Linear Actuator utilizing Flux Concentration Permanent Magnet Arrangement
Akira Goto,Takuya Okamoto,Atsushi Ikariga,Takashi Todaka,Masato Enokizono 대한전기학회 2012 Journal of Electrical Engineering & Technology Vol.7 No.3
This paper presents a moving-magnet type linear actuator designed by using flux concentration type permanent magnet arrangement, which can generate higher magnetic flux density in air-gap. In this construction, detent force which is induced by both slot-effect and end-effect becomes larger due to strong attractive forces. To reduce cogging force we have employed a modular mover structure of two magnetic pole sections connected with a center yoke. The improved motor performance is demonstrated with the prototype machine.