Role of dynamic unbalance in dynamics of turbocharger rotors

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dc.contributor.authorSmolík, Luboš
dc.contributor.authorDyk, Štěpán
dc.contributor.authorRendl, Jan
dc.date.accessioned2023-05-15T10:00:18Z
dc.date.available2023-05-15T10:00:18Z
dc.date.issued2023
dc.description.abstract-translatedRotating unbalance is one of the key reasons for high vibration levels in turbochargers. The current studies consider the rotating unbalance as a series of static (force) unbalances and acknowledge the importance of their allocation and orientation. However, the displaced mass or material nonhomogeneity, which is the source of the unbalance in real-world rotors, results also in so-called dynamic unbalance. Such an unbalance creates nonzero products of inertia relative to the axis of rotation, meaning that the central principal axis does not coincide with the axis of rotation. The rotor is subjected to additional inertial forces, described in this research using a multi-body dynamics formalism. The results indicate that the dynamic unbalance amplifies the synchronous vibration and induces several types of asynchronous motions. The phenomena described in the article were proven experimentally in previous works but have been difficult or impossible to simulate without using unrealistically high values of the static unbalance. Furthermore, the work provides fundamental results regarding the interaction between the static and dynamic unbalance and proposes analytic relations describing how the balancing procedure affects the products of inertia.en
dc.format18 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationSMOLÍK, L. DYK, Š. RENDL, J. Role of dynamic unbalance in dynamics of turbocharger rotors. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2023, roč. 249, č. July, s. nestránkováno. ISSN: 0020-7403cs
dc.identifier.document-number956362400001
dc.identifier.doi10.1016/j.ijmecsci.2023.108237
dc.identifier.issn0020-7403
dc.identifier.obd43939416
dc.identifier.uri2-s2.0-85149279229
dc.identifier.urihttp://hdl.handle.net/11025/51882
dc.language.isoenen
dc.project.IDGA22-29874S/Termohydrodynamické účinky mezného skluzu a texturování povrchu kluzných kontaktůcs
dc.publisherElsevieren
dc.relation.ispartofseriesInternational Journal Of Mechanical Sciencesen
dc.rightsPlný text je přístupný v rámci univerzity přihlášeným uživatelůmcs
dc.rights© Elsevier Ltden
dc.rights.accessrestrictedAccessen
dc.subject.translatedturbochargersen
dc.subject.translatedrotordynamicsen
dc.subject.translatedmulti-body dynamicsen
dc.subject.translatedfloating ring bearingsen
dc.subject.translatedrotating unbalanceen
dc.subject.translateddynamic unbalanceen
dc.titleRole of dynamic unbalance in dynamics of turbocharger rotorsen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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