Measuring Device for More Precise Mistuning Identification of Integrated Bladed Discs

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dc.contributor.authorKučera, Ondřejcs
dc.contributor.authorPíštěk, Václavcs
dc.contributor.authorFomin, Oleksijcs
dc.contributor.authorKučera, Pavelcs
dc.contributor.authorSagin, Sergiics
dc.coverage.issue5cs
dc.coverage.volume17cs
dc.date.accessioned2025-05-26T09:55:52Z
dc.date.available2025-05-26T09:55:52Z
dc.date.issued2025-05-07cs
dc.description.abstractIn integrated turbine wheel designs, small deviations, known as mistuning, often occur in the modal properties of individual blades due to manufacturing tolerances and material inhomogeneity. During operation, this mistuning can cause some rotor blades to be subjected to significantly higher loads than predicted for an ideal rotor. The degree of rotor mistuning can only be determined using methods of experimental modal analysis. However, the manual use of the modal hammer cannot ensure precise repeatability of the force impulse’s location and timing, leading to inaccuracies. This article introduces a mechanism that replaces manual modal hammer operations, guaranteeing consistent impact location and timing while eliminating double strikes. The device was verified on bladed discs of various sizes, and its usability is demonstrated in this article on a turbine wheel of a marine engine turbocharger. The developed mechanism automates modal hammer strikes, ensuring precisely repeatable force courses and positioning for each impact. This automation reduces the measurement time and significantly improves the accuracy. The results of this research showed that even with careful manual operation of the modal hammer by an experienced operator, statistically significant differences arise in the repeated measurements of a bladed disc mistuning, whereas with the use of the presented measuring device, the results of the repeated measurements are practically identical.en
dc.formattextcs
dc.format.extent1-15cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationSymmetry. 2025, vol. 17, issue 5, p. 1-15.en
dc.identifier.doi10.3390/sym17050717cs
dc.identifier.issn2073-8994cs
dc.identifier.orcid0000-0002-5523-9858cs
dc.identifier.orcid0000-0003-2863-0226cs
dc.identifier.orcid0000-0001-9652-9897cs
dc.identifier.other197883cs
dc.identifier.researcheridAAK-6214-2020cs
dc.identifier.researcheridR-5127-2018cs
dc.identifier.scopus6508192662cs
dc.identifier.scopus7005045820cs
dc.identifier.urihttps://hdl.handle.net/11012/251021
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofSymmetrycs
dc.relation.urihttps://www.mdpi.com/2073-8994/17/5/717cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-8994/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbladed discen
dc.subjectmistuningen
dc.subjectmeasuring deviceen
dc.subjectturbochargeren
dc.subjectmarine engineen
dc.titleMeasuring Device for More Precise Mistuning Identification of Integrated Bladed Discsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.grantNumberinfo:eu-repo/grantAgreement/MSM/EH/EH23_020/0008528cs
sync.item.dbidVAV-197883en
sync.item.dbtypeVAVen
sync.item.insts2025.05.26 11:55:52en
sync.item.modts2025.05.26 11:32:58en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav automobilního a dopravního inženýrstvícs
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