Počet záznamů: 1  

Advances in Mechanism and Machine Science

  1. 1.
    0507365 - ÚT 2020 RIV PL eng M - Část monografie knihy
    Pešek, Luděk - Šnábl, Pavel - Šulc, Petr - Půst, Ladislav - Bula, Vítězslav
    3D FE modelling of non-linear dynamics of bladed model disk with dry-friction contacts in tie-bosses.
    Advances in Mechanism and Machine Science. Krakow: Springer Nature Switzerland, 2019 - (Uhl, T.), s. 3429-3438, č. článku 00730338. 73. ISBN 978-3-030-20130-2
    Grant CEP: GA ČR GA16-04546S
    Institucionální podpora: RVO:61388998
    Klíčová slova: bladed wheel * dry-friction contacts * damping * tie-boss couplings
    Obor OECD: Applied mechanics
    https://link.springer.com/chapter/10.1007%2F978-3-030-20131-9_338

    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. The Augmented Lagrangian method was used to compute contact normal pressures and friction stresses. The friction coupling was modeled by the Isotropic Coulomb’s law. To validate the numerical results, the experimental set-up for studying dynamical behavior of the bladed wheel with pre-stressed dry-friction contacts in tie-bosses was built. Both experimental and numerical solutions of the non-linear dynamics of bladed wheel with tie-bosses are described. Comparison of experimental and numerical results of dynamical behavior and damping estimation of our bladed wheel design yielded a reasonable agreement. However, the non-linear solution due to dry friction contacts leads to high performance computations and still long computation times.
    Trvalý link: http://hdl.handle.net/11104/0304604

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.