The dynamic behavior of a rolling element auxiliary bearing following rotor impact

M. O. T. Cole, P. S. Keogh, C. R. Burrows

Research output: Contribution to journalArticle

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Abstract

The dynamic behavior of a rolling element bearing under auxiliary operation in rotor/magnetic bearing systems is analyzed. When contact with the rotor occurs, the inner race experiences high impact forces and rapid angular acceleration. A finite element model is used to account for flexibility of the inner race in series with non-linear ball stiffnesses arising from the ball-race contact zones. The dynamic conditions during rotor/inner race contact, including ball/race creep, are deduced from a non-linear matrix equation. The influences of bearing parameters are considered together with implications for energy dissipation in the bearing.
LanguageEnglish
Pages406-413
JournalJournal of Tribology: Transactions of the ASME
Volume124
Issue number2
DOIs
StatusPublished - 1 Jun 2002

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Bearings (structural)
rotors
Rotors
balls
Magnetic bearings
angular acceleration
Energy dissipation
Creep
magnetic bearings
Stiffness
stiffness
flexibility
energy dissipation

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The dynamic behavior of a rolling element auxiliary bearing following rotor impact. / Cole, M. O. T.; Keogh, P. S.; Burrows, C. R.

In: Journal of Tribology: Transactions of the ASME, Vol. 124, No. 2, 01.06.2002, p. 406-413.

Research output: Contribution to journalArticle

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