Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment

0547961 - ÚT 2022 RIV GB eng J - Článek v odborném periodiku
Pešek, Luděk - Šnábl, Pavel - Bula, Vítězslav
Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment.
Shock and Vibration. Roč. 2021, October (2021), č. článku 5554379. ISSN 1070-9622. E-ISSN 1875-9203
Grant CEP: GA ČR(CZ) GA20-26779S
Institucionální podpora: RVO:61388998
Klíčová slova: 3D finite element method * turbine bladed * damping evaluation
Obor OECD: Applied mechanics
Impakt faktor: 1.616, rok: 2021
Způsob publikování: Open access
https://www.hindawi.com/journals/sv/2021/5554379/

Interblade contacts and damping evaluation of the turbine bladed wheel with prestressed dry friction contacts are solved by the 3D finite element method with the surface-to-surface dry friction contact model. This makes it possible to model the space relative motions of contact pairs that occur during blade vibrations. To experimentally validate the model, a physical model of the bladed wheel with tie-boss couplings was built and tested. HPC computation with a proposed strategy was used to lower the computational time of the nonlinear solution of the wheel resonant attenuation used for damping estimation. Comparison of experimental and numerical results of damping estimation yields a very good agreement.
Trvalý link: http://hdl.handle.net/11104/0327229