Publication detail

FE Model of Flow Induced Vocal Folds Oscillations in Interaction with Acoustic Spaces of the Vocal Tract

ŠVANCARA, P. HRŮZA, V. HORÁČEK, J.

Czech title

Konečněprvkový model interakce vzduchem vybuzených kmitů hlasivek s akustickými procesy ve vokálním traktu

English title

FE Model of Flow Induced Vocal Folds Oscillations in Interaction with Acoustic Spaces of the Vocal Tract

Type

conference paper

Language

en

Original abstract

The study presents a 3D finite element (FE) model of self-oscillating human vocal folds in interaction with the airflow coming from the subglottal spaces to simplified spaces of the vocal tract. FE model includes fluid-structure interaction, morphing the fluid mesh according the vocal folds motion, unsteady viscous compressible airflow, airflow separation, large deformations of the vocal fold tissue, vocal folds pretension before phonation and vocal folds contact during the collisions. Aim of this study is to verify the developed FE model and to improve the stability of the computational algorithm.

Czech abstract

V příspěvku je prezentován prostorový (3D) konečněprvkový (MKP) model interakce vzduchem vybuzených kmitů hlasivek sakustickými procesy ve vokálním traktu. Model je poháněn proudem vzduchu dodávaným z plic. Vytvořený MKP model zahrnuje velké deformace tkáně hlasivek, předpětí hlasivek před začátkem fonace, kontakt hlasivek, nestacionární viskózní stlačitelné proudění a přerušování proudu vzduchu. Cílem tothot příspěvku je ověřit vytvořený MKP model a zlepšit jeho stabilitu.

English abstract

The study presents a 3D finite element (FE) model of self-oscillating human vocal folds in interaction with the airflow coming from the subglottal spaces to simplified spaces of the vocal tract. FE model includes fluid-structure interaction, morphing the fluid mesh according the vocal folds motion, unsteady viscous compressible airflow, airflow separation, large deformations of the vocal fold tissue, vocal folds pretension before phonation and vocal folds contact during the collisions. Aim of this study is to verify the developed FE model and to improve the stability of the computational algorithm.

Keywords in Czech

hlasivky, interakce struktury s tekutinou, akustika, MKP

Keywords in English

vocal folds, fluid structure interaction, acoustics, FEM

RIV year

2009

Released

18.05.2009

Publisher

Technical University of Madrid

Location

Madrid, Spain

ISBN

84-95227-64-9

Book

Proceedings of the 3rd Advanced Voice Function Assessment International Workoshop

Pages from–to

17–20

Pages count

4

BIBTEX


@inproceedings{BUT29406,
  author="Pavel {Švancara} and Jaromír {Horáček} and Václav {Hrůza},
  title="FE Model of Flow Induced Vocal Folds Oscillations in Interaction with Acoustic Spaces of the Vocal Tract",
  booktitle="Proceedings of the 3rd Advanced Voice Function Assessment International Workoshop",
  year="2009",
  month="May",
  pages="17--20",
  publisher="Technical University of Madrid",
  address="Madrid, Spain",
  isbn="84-95227-64-9"
}