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.
Issue Section:
Technical Papers
1.
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, 1990
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, 1
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.2.
Wang
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, 1998
, “Nonlinear Dynamics of a Magnetically Supported Rotor on Safety Auxiliary Bearings
,” ASME J. Vibr. Acoust.
, 120
, pp. 596
–606
.3.
Ishii
, T.
, and Kirk
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, 1996
, “Transient Response Technique Applied to Active Magnetic Bearing Machinery During Rotor Drop
,” ASME J. Vibr. Acoust.
, 118
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.4.
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5.
Kirk
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, 121
, pp. 156
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.6.
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7.
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, 221
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.8.
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, A. B.
, 1959
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, 81
, pp. 1
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.9.
Walters
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,” ASME J. Vibr. Acoust.
, 93
, pp. 1
–10
.10.
Jones
, A. B.
, 1960
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,” ASME J. Basic Eng.
, 82
, pp. 309
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.11.
Harris
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, 1971
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,” ASME J. Lubr. Technol.
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.12.
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14.
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15.
Hunt
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,” ASME J. Appl. Mech.
, 42
, pp. 440
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.16.
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, 1968
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,” Wear
, 11
, pp. 421
–430
.Copyright © 2002
by ASME
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