Publication:
Nonlinear dynamics of a magnetically supported rigid rotor in auxiliary bearings

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dc.citedby35
dc.contributor.authorInayat-Hussain J.I.en_US
dc.contributor.authorid6602271377en_US
dc.date.accessioned2023-12-29T07:49:25Z
dc.date.available2023-12-29T07:49:25Z
dc.date.issued2010
dc.description.abstractThe dynamics of a rigid rotor supported by load-sharing between magnetic and auxiliary bearings are investigated for a range of realistic design and operating parameters. Numerical results indicate that the system's response is mainly influenced by the magnitude of the rotor imbalance. For relatively large imbalance magnitudes, non-synchronous vibrations were found to dominate the system's response over a substantial range of the operating speed. The magnitudes of the stiffness ratio and Coulomb sliding friction coefficient were found to have almost negligible effect on the system's response for relatively large imbalance levels. For relatively small imbalance levels, however, the variation of these parameters' magnitudes were found to be effective in reducing the system's response amplitude and decreasing or totally eliminating the range of operating speed where non-synchronous vibrations occurred in the system's response. Non-synchronous vibrations of period-2, -3, -4, -5, -6, -11 and chaos, which were observed in the system's response, are not desirable as they cause fluctuating stresses in the main components of the system, which may eventually lead to their failure due to fatigue. � 2010 Elsevier Ltd. All rights reserved.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.mechmachtheory.2010.06.006
dc.identifier.epage1667
dc.identifier.issue11
dc.identifier.scopus2-s2.0-77957896046
dc.identifier.spage1651
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-77957896046&doi=10.1016%2fj.mechmachtheory.2010.06.006&partnerID=40&md5=6cbaf7ee7eca9732d88499f5713a2177
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30556
dc.identifier.volume45
dc.pagecount16
dc.sourceScopus
dc.sourcetitleMechanism and Machine Theory
dc.subjectActive magnetic bearing
dc.subjectAuxiliary bearing
dc.subjectBifurcation
dc.subjectNonlinear
dc.subjectRotor dynamics
dc.subjectBifurcation (mathematics)
dc.subjectFriction
dc.subjectMagnetic amplifiers
dc.subjectMagnetic bearings
dc.subjectActive Magnetic Bearing
dc.subjectAuxiliary bearings
dc.subjectBifurcation
dc.subjectNonlinear
dc.subjectRotor dynamics
dc.subjectRigid rotors
dc.titleNonlinear dynamics of a magnetically supported rigid rotor in auxiliary bearingsen_US
dc.typeArticleen_US
dspace.entity.typePublication
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