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dc.contributor.authorChromek, Lukáš
dc.date.accessioned2016-07-01T06:32:50Z
dc.date.available2016-07-01T06:32:50Z
dc.date.issued2016
dc.identifier.citationApplied and Computational Mechanics. 2016, vol. 10, no. 1, p. 17-26.en
dc.identifier.issn1802-680X (Print)
dc.identifier.issn2336-1182 (Online)
dc.identifier.urihttp://www.kme.zcu.cz/acm/acm/article/view/299
dc.identifier.urihttp://hdl.handle.net/11025/21632
dc.description.abstractIntegral turbine wheels belong to one of the most stressed parts of jet aircraft engines. In addition to high rotational speeds and temperatures, they are also subjected to dynamic forces from a non-uniform pressure field in the flow path. Dynamic forces even at a relatively small amplitude can cause failure by fatigue, which leads to fracture of blades and crash of the machine. These adverse conditions, called resonance, should be avoided already in the design stage when a suitable choice of stator vanes and the number of blades can move the critical speed of the blisk beyond the operating speed or at least reduce their influence. In the case of a small jet engine produced by the První brněnská strojírna (PBS) Velká Bíteš, the operating speed is of nearly half of the entire speed range of the machine. This makes the design of a proposed turbine wheel very complicated. A higher harmonic order of aerodynamic excitation is almost always present, its influence was therefore tested experimentally by vibration tests in the test station PBS Velká Bíteš.en
dc.format10 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherUniversity of West Bohemiaen
dc.relation.ispartofseriesApplied and Computational Mechanicsen
dc.rights© 2016 University of West Bohemia. All rights reserved.en
dc.subjecttryskové motorycs
dc.subjectrychlostcs
dc.subjectexperimentální modální analýzacs
dc.subjectrezonancecs
dc.titleDesign of the blisk of an aircraft turbojet engine and verification of its resonance free operationen
dc.typečlánekcs
dc.typearticleen
dc.rights.accessopenAccessen
dc.type.versionpublishedVersionen
dc.subject.translatedjet enginesen
dc.subject.translatedspeeden
dc.subject.translatedexperimental modal analysisen
dc.subject.translatedresonanceen
dc.type.statusPeer-revieweden
Appears in Collections:Volume 10, number 1 (2016)
Volume 10, number 1 (2016)

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