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HPC fem calculations for damping estimation of bladed disk with dry-friction contacts
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SYSNO ASEP 0535524 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title HPC 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) RIDNumber of authors 3 Article number V007T07A024 Source Title Proceedings of the ASME Design Engineering Technical Conference. - New York : American Society of Mechanical Engineers (ASME), 2020 - ISBN 978-079188396-9 Number of pages 5 s. Publication form Online - E Action ASME 2020 International design engineering technical conferences and computers and information in engineering conference Event date 17.08.2020 - 19.08.2020 VEvent location Virtual, online Country US - United States Event type WRD Language eng - English Country US - United States Keywords damping ; turbines ; dry friction ; finite element methods ; computation ; wheels Subject RIV BI - Acoustics OECD category Applied mechanics Institutional support UT-L - RVO:61388998 EID SCOPUS 85096185537 DOI 10.1115/DETC2020-22070 Annotation The 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. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2021
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