Numerical simulations of aeroelastic instabilities in a turbine-blade cascade by a modified Van der Pol model at running excitation

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dc.contributor.authorPešek, Luděk
dc.contributor.authorŠnábl, Pavel
dc.contributor.authorPrasad, Chandra Shekhar
dc.contributor.authorDelanney, Y.
dc.date.accessioned2023-10-03T17:23:29Z
dc.date.available2023-10-03T17:23:29Z
dc.date.issued2023
dc.description.abstract-translatedThe onset and spread of flutter in a turbine blade cascade are numerically studied. Due to the application of thereduced-cascade model consisting of simple elements (springs, rigid bodies, linear dampers) and aeroelastic forcesintroduced by the analytical Van der Pol model, it is useful to study the dangerous states of vibration of suchcomplicated turbine parts. This study examines aeroelastic instabilities of a 10-blade cascade at running excitationthat arise due to wakes flowing from the stator blades to the rotating blades. Unlike our previous work, it bringsa new definition of the Van der Pol model of self-excitation that is controlled by relative inter-blade motion ofneighbouring blades.en
dc.format18 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationApplied and Computational Mechanics. 2023, vol. 17, no. 1, p. 35-52.en
dc.identifier.doihttps://doi.org/10.24132/acm.2023.792
dc.identifier.issn1802-680X (Print)
dc.identifier.issn2336-1182 (Online)
dc.identifier.urihttp://hdl.handle.net/11025/54293
dc.language.isoenen
dc.publisherUniversity of West Bohemiaen
dc.rights© University of West Bohemiaen
dc.rights.accessopenAccessen
dc.subjecttřepetánícs
dc.subjectlopatková kaskádacs
dc.subjectsebebuzenícs
dc.subjectVan der Polcs
dc.subject.translatedflutteren
dc.subject.translatedblade cascadeen
dc.subject.translatedself-excitationen
dc.subject.translatedVan der Polen
dc.titleNumerical simulations of aeroelastic instabilities in a turbine-blade cascade by a modified Van der Pol model at running excitationen
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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Volume 17, number 1 (2023)
Volume 17, number 1 (2023)