Detail publikačního výsledku

Finite element modelling of human vocal folds self-oscillation

ŠVANCARA, P.; HORÁČEK, J.; ŠVEC, J. G.

Original Title

Finite element modelling of human vocal folds self-oscillation

English Title

Finite element modelling of human vocal folds self-oscillation

Type

Abstract

Original Abstract

The study presents a three-dimensional (3D) finite element (FE) model of the flow-induced self-oscillation of the human vocal folds in interaction with acoustics in the simplified vocal tract models. The effect of vocal-fold layers thickness and material properties on simulated videokymographic (VKG) images and produced sound spectra is analyzed. The 3D vocal tract models of the acoustic spaces for Czech vowels [a:], [i:] and [u:] were created by converting the data from the magnetic resonance images (MRI). The fluid-structure interaction is solved using explicit coupling scheme with separated solvers for structure and fluid domain. For modelling the acoustic wave propagation, compressible Navier-Stokes equations were utilized. The developed FE model can be used to numerically simulate pathological changes in the vocal-fold tissue and their influence on the voice production.

English abstract

The study presents a three-dimensional (3D) finite element (FE) model of the flow-induced self-oscillation of the human vocal folds in interaction with acoustics in the simplified vocal tract models. The effect of vocal-fold layers thickness and material properties on simulated videokymographic (VKG) images and produced sound spectra is analyzed. The 3D vocal tract models of the acoustic spaces for Czech vowels [a:], [i:] and [u:] were created by converting the data from the magnetic resonance images (MRI). The fluid-structure interaction is solved using explicit coupling scheme with separated solvers for structure and fluid domain. For modelling the acoustic wave propagation, compressible Navier-Stokes equations were utilized. The developed FE model can be used to numerically simulate pathological changes in the vocal-fold tissue and their influence on the voice production.

Keywords

biomechanics of voice, fluid-structure-acoustic interaction, finite element method, simulation of phonation, videokymography

Key words in English

biomechanics of voice, fluid-structure-acoustic interaction, finite element method, simulation of phonation, videokymography

Authors

ŠVANCARA, P.; HORÁČEK, J.; ŠVEC, J. G.

Released

10.04.2014

Publisher

National Center for Voice and Speech, University of Utah

Location

Salt Lake City, USA

Book

Proceedings of The 9th Internationl Conference on Voice Physiology and Biomechanics 2014

Pages from

83

Pages to

83

Pages count

1

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@misc{BUT113331,
  author="Pavel {Švancara} and Jaromír {Horáček} and Jan G. {Švec}",
  title="Finite element modelling of human vocal folds self-oscillation",
  booktitle="Proceedings of The 9th Internationl Conference on Voice Physiology and Biomechanics 2014",
  year="2014",
  pages="83--83",
  publisher="National Center for Voice and Speech, University of Utah",
  address="Salt Lake City, USA",
  note="Abstract"
}