Number of the records: 1
The new HPC results of 3D FE modelling of dry-friction damping at tie-boss couplings of bladed wheel - 6nd resonant mode
- 1.
SYSNO ASEP 0543670 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The new HPC results of 3D FE modelling of dry-friction damping at tie-boss couplings of bladed wheel - 6nd resonant mode Author(s) Pešek, Luděk (UT-L) RID
Šnábl, Pavel (UT-L) ORCID
Bula, Vítězslav (UT-L) RIDNumber of authors 3 Source Title Dynamics of Machines and Mechanical Systems with Interactions, DYMAMESI 2021. - Praha : Institute of Thermomechanics Academy of Sciences of the Czech Republic, v. v. i., 2021 / Zolotarev I. ; Pešek L. ; Kozień M. S. - ISBN 978-80-87012-75-8 Pages s. 59-64 Number of pages 6 s. Publication form Print - P Action DYMAMESI 2021 Event date 02.03.2021 - 03.03.2021 VEvent location Cracow - Prague 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 paper is a direct continuation of our study published in the last colloquium DYMAMESI. This paper deals with the new results of dry-friction damping calculation of the bladed wheel with tie-boss couplings vibrating at a higher resonant mode, i.e. mode with 6 nodal diameters (ND). The numerical solution of the wheel based on 3D finite element method with surface-to-surface dry friction contact model is applied. Due to dry friction contacts and non-linear solution, it leads to HPC computations and long computation times. Therefore, the earlier proposed computational strategy for damping evaluation where the resonant attenuation is computed directly from the defined resonant initial conditions given by the 6ND mode is used. Comparison of experimental and numerical results of dynamical behaviour of the bladed wheel yields a reasonable agreement for the studied vibration mode. 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 2022
Number of the records: 1