Permanent magnet bearings for horizontal- and vertical-shaft machines: A comparative study | Zendy

Takahisa Ohji | Zendy; Subhas Chandra Mukhopadhyay | Zendy; M. Iwahara | Zendy; S. Yamada | Zendy

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Permanent magnet bearings for horizontal- and vertical-shaft machines: A comparative study

Author(s) -

Takahisa Ohji,

Subhas Chandra Mukhopadhyay,

M. Iwahara,

S. Yamada

Publication year - 1999

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.370436

Subject(s) - magnet , magnetic bearing , electropermanent magnet , rotor (electric) , bearing (navigation) , permanent magnet synchronous generator , attenuation , electrodynamic suspension , mechanical engineering , magnetic levitation , materials science , physics , magnetic field , engineering , magnetic energy , optics , magnetization , quantum mechanics , astronomy

Two types of magnetic bearing systems employing permanent magnets to be used for vertical-shaft and horizontal-shaft machines, respectively, have been designed and fabricated in our laboratory. In this article we report a comparative evaluation of (i) the permanent magnet configuration and its effect on radial disturbance attenuation, (ii) magnetic losses and their effect on energy storage, and (iii) the off-state position of the rotor magnet in two types of bearing systems. Experimental results are presented. © 1999 American Institute of Physics

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