Numerical simulation of the self-oscillating vocal folds in interaction with vocal tract shaped for particular czech vowels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00464217" target="_blank" >RIV/61388998:_____/17:00464217 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/17:73578793

Výsledek na webu

<a href="http://dx.doi.org/10.1007/978-3-319-46490-9_43" target="_blank" >http://dx.doi.org/10.1007/978-3-319-46490-9_43</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-319-46490-9_43" target="_blank" >10.1007/978-3-319-46490-9_43</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical simulation of the self-oscillating vocal folds in interaction with vocal tract shaped for particular czech vowels

Popis výsledku v původním jazyce

The study presents a two-dimensional (2D) finite element (FE) model which consists of the vocal folds (VF), the trachea and idealized vocal tract (VT) shaped for Czech vowels [a:], [i:] and [u:] created from magnetic resonance images (MRI). Such configuration enables solving fluid-structure-acoustic interaction, flow-induced self-oscillations of the VF and acoustic wave propagation in the VT by explicit coupling scheme with two separate solvers for structure and fluid domain. The FE model of the VF includes the VF pretension and setting to phonatory position, large deformation of tissues and VF contact. Unsteady viscous compressible airflow through the FE model of the trachea, glottis and the VT is modelled by using Navier-Stokes (NS) equations. Moving boundary of the fluid domain (according to the VF motion) is solved by the Arbitrary Lagrangian - Eulerian approach. The solution obtained for the FE models is analyzed and the effect of the VT shape on the spectra of the generated acoustic pressure at the lips is discussed and the results are compared with measured data published in literature.

Název v anglickém jazyce

Numerical simulation of the self-oscillating vocal folds in interaction with vocal tract shaped for particular czech vowels

Popis výsledku anglicky

The study presents a two-dimensional (2D) finite element (FE) model which consists of the vocal folds (VF), the trachea and idealized vocal tract (VT) shaped for Czech vowels [a:], [i:] and [u:] created from magnetic resonance images (MRI). Such configuration enables solving fluid-structure-acoustic interaction, flow-induced self-oscillations of the VF and acoustic wave propagation in the VT by explicit coupling scheme with two separate solvers for structure and fluid domain. The FE model of the VF includes the VF pretension and setting to phonatory position, large deformation of tissues and VF contact. Unsteady viscous compressible airflow through the FE model of the trachea, glottis and the VT is modelled by using Navier-Stokes (NS) equations. Moving boundary of the fluid domain (according to the VF motion) is solved by the Arbitrary Lagrangian - Eulerian approach. The solution obtained for the FE models is analyzed and the effect of the VT shape on the spectra of the generated acoustic pressure at the lips is discussed and the results are compared with measured data published in literature.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10307 - Acoustics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Advances in Intelligent Systems and Computing

ISBN

978-33-194-6489-3

ISSN

2194-5357

e-ISSN

—

Počet stran výsledku

7

Strana od-do

317-323

Název nakladatele

Springer Verlag

Místo vydání

Heidelberg

Místo konání akce

Varšava

Datum konání akce

26. 9. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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