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HPC fem calculations for damping estimation of bladed disk with dry-friction contacts

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    SYSNO ASEP0535524
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitleHPC fem calculations for damping estimation of bladed disk with dry-friction contacts
    Author(s) Pešek, Luděk (UT-L) RID
    Šnábl, Pavel (UT-L) ORCID
    Bula, Vítězslav (UT-L) RID
    Number of authors3
    Article numberV007T07A024
    Source TitleProceedings of the ASME Design Engineering Technical Conference. - New York : American Society of Mechanical Engineers (ASME), 2020 - ISBN 978-079188396-9
    Number of pages5 s.
    Publication formOnline - E
    ActionASME 2020 International design engineering technical conferences and computers and information in engineering conference
    Event date17.08.2020 - 19.08.2020
    VEvent locationVirtual, online
    CountryUS - United States
    Event typeWRD
    Languageeng - English
    CountryUS - United States
    Keywordsdamping ; turbines ; dry friction ; finite element methods ; computation ; wheels
    Subject RIVBI - Acoustics
    OECD categoryApplied mechanics
    Institutional supportUT-L - RVO:61388998
    EID SCOPUS85096185537
    DOI10.1115/DETC2020-22070
    AnnotationThe experimental set-up for studying dynamical behaviour of the bladed wheel with pre-stressed dry-friction contacts in tie-bosses was built. The numerical solution of the turbine bladed wheel with tie-bosses based on 3D finite element method with surface to surface dry friction contact model is proposed. Comparison of experimental and numerical results of dynamical behaviour and damping estimation of our bladed wheel design yielded a reasonable agreement. Due to dry friction contacts and non-linear solution of 3D FE model it, however, leads to HPC computations and long computation times. The contribution deals with description of proposed computational strategy for damping evaluation and achieved results, too.
    WorkplaceInstitute of Thermomechanics
    ContactMarie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823
    Year of Publishing2021
Number of the records: 1  

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