3D FE modelling of non-linear dynamics of bladed model disk with dry-friction contacts in tie-bosses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F19%3A00507365" target="_blank" >RIV/61388998:_____/19:00507365 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/chapter/10.1007%2F978-3-030-20131-9_338" target="_blank" >https://link.springer.com/chapter/10.1007%2F978-3-030-20131-9_338</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-20131-9_338" target="_blank" >10.1007/978-3-030-20131-9_338</a>

Jazyk výsledku

angličtina

Název v původním jazyce

3D FE modelling of non-linear dynamics of bladed model disk with dry-friction contacts in tie-bosses

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

3D FE modelling of non-linear dynamics of bladed model disk with dry-friction contacts in tie-bosses

Popis výsledku anglicky

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.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA16-04546S" target="_blank" >GA16-04546S: Aeroelastické vazby a dynamické chování rotačně periodických těles</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Advances in Mechanism and Machine Science

ISBN

978-3-030-20130-2

Počet stran výsledku

10

Strana od-do

3429-3438

Počet stran knihy

4237

Název nakladatele

Springer Nature Switzerland

Místo vydání

Krakow

Kód UT WoS kapitoly

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