A comparison of eddy current effects in a single sided magnetic thrust bearing /

accounting for the effect caused by extending the rotor past

Bibliographic Details
Main Author: DeWeese, Randall Thomas
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:accounting for the effect caused by extending the rotor past
axisymmetric finite element model and illustrate the fringing
bearings have replaced ball or thrust bearings. However,
current reduction. Several rotor/stator configurations,
eddy currents cause a loss of power and instability in
effect that occurs with magnetic bearings. A fringe factor
field and the input or control current causes the
for the power loss, while the phase lag between the magnetic
inates. and solid wedge pieces are used to determine the
including solid metal, laminated washers, tapewound lam-
instability. This study incorporated finite element studies
magnetic bearings. The eddy current magnitude is responsible
Modern uses of rotating shafts depend upon bearing speeds and
of magnetic thrust bearings using static bench testing
order to accommodate these excessive parameters, magnetic
procedures to investigate configurations that promote eddy
smallest phase lag configuration. Finite element analysis
temperatures that exceed normal operating parameters. In
the stator is developed using finite element analysis.
will compare a solid configuration bench test with an
Item Description:"Major subject: Mechanical Engineering".
Vita.
Physical Description:xiv, 113 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.