Original title: Contribution to modelling of bladed model disk with dry-friction contacts in tie-bosses
Authors: Pešek, Luděk ; Šnábl, Pavel ; Šulc, Petr ; Půst, Ladislav ; Bula, Vítězslav
Document type: Papers
Conference/Event: DYMAMESI 2019, Cracow (PL), 20190305
Year: 2019
Language: eng
Abstract: The experimental set-up for studying dynamical behavior of the bladed wheel with pre-stressed dry-friction contacts in tie-bosses was built. The numerical solution of the turbine bladed wheel with tiebosses 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 behavior and damping estimation of our bladed wheel design yielded a reasonable agreement. Limitation of the non-linear solution due to dry friction contacts is HPC computations and long computation times. The contribution will deal with the achieved results.\n
Keywords: bladed wheel; damping; dry-friction contacts; tie-boss couplings
Project no.: CEZ:AV0Z2076919 (CEP), StrategieAV21/3
Funding provider: AV ČR
Host item entry: The International Colloquium Dynamics of Machines and Mechanical Systems with Interactions : DYMAMESI 2019, ISBN 978-80-87012-70-3

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/11104/0304961

Permalink: http://www.nusl.cz/ntk/nusl-409311


The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers