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dc.contributor.authorFerfecki, Petr
dc.date.accessioned2013-05-31T12:36:50Z
dc.date.available2013-05-31T12:36:50Z
dc.date.issued2007
dc.identifier.citationApplied and Computational Mechanics. 2007, vol. 1, no. 2, p. 427-436.en
dc.identifier.issn1802-680X (Print)
dc.identifier.issn2336-1182 (Online)
dc.identifier.urihttp://www.kme.zcu.cz/acm/old_acm/full_papers/acm_vol1no2_p051.pdf
dc.identifier.urihttp://hdl.handle.net/11025/1965
dc.description.abstractThe coupling of bending and torsional vibration due to the presence of transverse fatigue crack in a rotor system supported by radial active magnetic bearings (AMB) is investigated. For this purpose the modified stiffness matrix with six degrees of freedom per node is used and takes into account all the coupling phenomena that exists in a cracked rotor. The partial opening and closing of crack is considered by means of status of stress intensity factor along the crack edge. The equation of motion of rotor system is nonlinear due to response dependent non-linear breathing crack model and nonlinear force coupling introduced by AMB. A response of the rotor system is obtained by direct integration of nonlinear equation of motion. When the torsional harmonic excitation is applied to the rotor system with the crack then the sum and difference of torsional frequency around a bending natural frequency is observed in the lateral vibration spectrum. Influence of different values of crack parameters for two different speeds of rotor is investigated with help of frequency spectra.en
dc.format10 s.
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherUniversity of West Bohemiaen
dc.relation.ispartofseriesApplied and Computational Mechanicsen
dc.rights© 2007 University of West Bohemia. All rights reserved.en
dc.subjectrotorové systémycs
dc.subjectmagnetická ložiskacs
dc.subjecttorzní vibracecs
dc.subjecttrhlinycs
dc.titleStudy of coupling between bending and torsional vibration of cracked rotor system supported by radial active magnetic bearingsen
dc.typečlánekcs
dc.typearticleen
dc.rights.accessopenAccessen
dc.type.versionpublishedVersionen
dc.subject.translatedrotor systemsen
dc.subject.translatedmagnetic bearingsen
dc.subject.translatedtorsional vibrationen
dc.subject.translatedcracksen
dc.type.statusPeer-revieweden
Appears in Collections:Volume 1, number 2 (2007)
Volume 1, number 2 (2007)

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