Original title: Contribution to HPC FEM calculations of bladed disk dynamics with dry-friction contacts
Authors: Pešek, Luděk ; Šnábl, Pavel ; Bula, Vítězslav
Document type: Papers
Conference/Event: International colloquium DYMAMESI 2020, Praha (CZ), 20200303
Year: 2020
Language: eng
Abstract: 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.
Keywords: bladed wheel; damping; dry-friction contacts; tie-boss couplings
Project no.: GA20-26779S (CEP), LM2015070 (CEP), StrategieAV21/3
Funding provider: GA ČR, Ga MŠk, AV ČR
Host item entry: Dymamesi 2020, ISBN 978-80-87012-73-4

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0314833

Permalink: http://www.nusl.cz/ntk/nusl-432415


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers