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Contribution to HPC FEM calculations of bladed disk dynamics with dry-friction contacts
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SYSNO ASEP 0535470 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Contribution to HPC FEM calculations of bladed disk dynamics with dry-friction contacts Author(s) Pešek, Luděk (UT-L) RID
Šnábl, Pavel (UT-L) ORCID
Bula, Vítězslav (UT-L) RIDNumber of authors 3 Source Title Dymamesi 2020. - Praha : Institute of Thermomechanics Academy of Sciences of the Czech Republic, v. v. i., 2020 / Zolotarev I. ; Pešek L. ; Kozieň M.S. - ISBN 978-80-87012-73-4 Pages s. 33-38 Number of pages 6 s. Publication form Print - P Action International colloquium DYMAMESI 2020 Event date 03.03.2020 - 04.03.2020 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords bladed wheel ; dry-friction contacts ; damping ; tie-boss couplings Subject RIV BI - Acoustics OECD category Applied mechanics R&D Projects GA20-26779S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 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 preliminary 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 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
Number of the records: 1