Publication detail
FE model of the vocal folds considering fluid-structure interaction
ŠVANCARA, P. HORÁČEK, J. HRŮZA, V.
Czech title
MKP model lidských hlasivek s uvažováním interakce fluid-struktura
English title
FE model of the vocal folds considering fluid-structure interaction
Type
conference paper
Language
en
Original abstract
The study presents three-dimensional finite element (FE) model of flow induced oscillations of the human vocal folds in interaction with acoustic processes in the simplified vocal tract model. The FE model includes vocal folds pretension before phonation, large deformations of the vocal fold tissue, vocal folds contact, fluid-structure interaction, morphing the fluid mesh according the vocal folds motion, unsteady viscous compressible airflow and airflow separation during the glottis closure. Fluid-structure interaction is solved using partitioned approach. Numerical results confirmed that the developed model can be used for simulation of the vocal folds self-oscillations.
Czech abstract
V práci je prezentován prostorový konečněprvkový (MKP) model interakce vzduchem vybuzených kmitů hlasivek s akustickými procesy v zjednodušeném modelu vokálního traktu. Model je poháněn proudem vzduchu dodávaným z plic. Vytvořený MKP model zahrnuje velké deformace tkáně hlasivek, předpětí hlasivek před začátkem fonace, kontakt hlasivek, interakci fluid-struktura, nestacionární viskózní stlačitelné proudění a přerušování proudu vzduchu. Numerické výsledky potvrdily že vytvořený model může být požit pro simulaci samobuzených kmitů lidských hlasivek.
English abstract
The study presents three-dimensional finite element (FE) model of flow induced oscillations of the human vocal folds in interaction with acoustic processes in the simplified vocal tract model. The FE model includes vocal folds pretension before phonation, large deformations of the vocal fold tissue, vocal folds contact, fluid-structure interaction, morphing the fluid mesh according the vocal folds motion, unsteady viscous compressible airflow and airflow separation during the glottis closure. Fluid-structure interaction is solved using partitioned approach. Numerical results confirmed that the developed model can be used for simulation of the vocal folds self-oscillations.
Keywords in Czech
lidské hlasivky, MKP, interakce fluid-struktura, akustika
Keywords in English
vocal folds, FEM, fluid-structure interaction, acoustics
RIV year
2010
Released
10.05.2010
Publisher
Ústav termomechaniky, AV ČR v.v.i.
Location
Svratka
ISBN
978-80-87012-26-0
Book
Engineering mechanics 2010
Pages from–to
147–148
Pages count
2
BIBTEX
@inproceedings{BUT35156,
author="Pavel {Švancara} and Václav {Hrůza} and Jaromír {Horáček},
title="FE model of the vocal folds considering fluid-structure interaction",
booktitle="Engineering mechanics 2010",
year="2010",
month="May",
pages="147--148",
publisher="Ústav termomechaniky, AV ČR v.v.i.",
address="Svratka",
isbn="978-80-87012-26-0"
}