Damping of flutter oscillations by dry friction contacts

dc.contributor.authorPůst, L.
dc.contributor.authorPešek, L.
dc.contributor.authorŠnábl, P.
dc.contributor.editorAdámek, Vítězslav
dc.contributor.editorJonášová, Alena
dc.contributor.editorPlánička, Stanislav
dc.contributor.editorZajíček, Martin
dc.date.accessioned2019-01-17T12:05:48Z
dc.date.available2019-01-17T12:05:48Z
dc.date.issued2018
dc.description.abstract-translatedSelf-excited flutter vibrations of turbine blades are very dangerous phenomena for the service life of turbines. The various design treatments are therefore applied for suppression of blades� flutter vibrations. The introduction of dry friction elements is one of the very effective methods. The dynamic behavior of a computational model of 30-blades turbine wheel is investigated in the proposed paper. The blades in the rotating cascade are excited by aerodynamic forces arising from the spatially periodical flow of steam through the stator blades cascade. This flow produces both forced vibration and self-excited vibrations - flutter. The application of dry friction elements on reduction of these dangerous vibrations is presented on several examples.en
dc.description.sponsorshipThis work has been supported by the grant project of the Czech Science Foundation No 16-04546S Aero-elastic couplings and dynamic behaviour of rotational periodic bodies´.en
dc.format2 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationComputational mechanics 2018: book of extended abstracts: 34th conference with international participation, p. 85-86.en
dc.identifier.isbn978-80-261-0819-1
dc.identifier.urihttp://hdl.handle.net/11025/30820
dc.language.isoenen
dc.publisherZápadočeská univerzita v Plznics
dc.relation.ispartofseriesComputational Mechanicsen
dc.rightsCopyright © 2018 University of West Bohemia, Plzeň, Czech Republicen
dc.rights.accessopenAccessen
dc.subjectlopatky turbínycs
dc.subjectchvěnícs
dc.subjectsuché třenícs
dc.subjectvýpočetní modelovánícs
dc.subject.translatedturbine bladesen
dc.subject.translatedflutter vibrationsen
dc.subject.translateddry frictionen
dc.subject.translatedcomputational biomechanicsen
dc.titleDamping of flutter oscillations by dry friction contactsen
dc.typekonferenční příspěvekcs
dc.typeconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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