Dynamic Load Capabilities of Active Electromagnetic Bearings

[+] Author and Article Information
K. R. Bornstein

Magnetic Bearings, Inc., Groton, CT 06340

J. Tribol 113(3), 598-603 (Jul 01, 1991) (6 pages) doi:10.1115/1.2920665 History: Received March 19, 1990; Revised June 01, 1990; Online June 05, 2008


Magnetic bearings are finding increasing use in a wide range of applications. It is well known that the static capacity of a bearing can be determined by its saturation point. The static capacity has often been the prime criterion for the selection of magnetic bearing size. The dynamic capacity of a bearing is a much more complicated function. This paper will develop equations to express the dynamic load capacity of a magnetic bearing in terms of its amplifier size, the frequency of excitation, the magnetic airgap, the method of force actuation, and certain nondimensional terms.

Copyright © 1991 by The American Society of Mechanical Engineers
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