Abstract

The high magnetic energy stored in rare earth-cobalt magnets allows the design of lightweight motors and magnetic bearings for high speed rotors. Not subject to wear and with the ability to operate under high vacuum conditions, magnetic bearings appear ideal for applications requiring high rotational speeds such as 100,000 rpm. Important applications are for turbo-molecular pumps, laser scanners, centrifuges, momentum rings for satellite stabilizations, and other uses in space technology. It is the purpose of this paper to present a two-dimensional nonlinear numerical analysis of the magnetic fields in a magnetic bearing, based on magnetostatic assumptions and finite-difference iterative techniques.

Notes

Author's manuscript; originally published in IEEE Transactions on Magnetics, Vol. 14, No. 5, pp.551-553, Sept 1978.

Keywords

computer aided analysis, rare earth cobalt magnets, lightweight motors, high speed rotors, magnetostatic assumptions, finite difference iterative techniques, two dimensional nonlinear numerical analysis

Subject Categories

Magnetic bearings, Magnetic fields

Disciplines

Electromagnetics and photonics

Publisher

IEEE

Publication Date

9-1978

Rights Information

(c) 1978 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

Rights Holder

IEEE

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