Sixth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2009)

Florence, Italy
December 14-16, 2009

Finite Element Model of The Human Phonation Process

S. Zörner (1,2), M. Kaltenbacher (1), Michael Döllinger (3)

(1) Chair of Applied Mechatronics, Alps-Adriatic University of Klagenfurt, Austria
(2) Department of Sensor Technology, University of Erlangen-Nürnberg, Germany
(3) Department of Phoniatrics & Pediatric Audiology, University of Erlangen-Nürnberg, Germany

The basis of the human phonation process is given by complex interaction of air flow in the larynx together with structural mechanics of the vocal folds. This paper presents a numerical scheme to model the fluid-solid interaction in the human larynx and its resulting acoustic sound.
   The scheme is utilised to simulated the phonation process in a 2D-model. Different geometries of the vocal folds have been used to analyse the effect on the fluid field, the vibration of the vocal folds and the sound generation. The results show the self sustained oscillation of the vocal folds and resolve the Coanda effect.

Index Terms. human phonation, fluid-structure interaction, aeroacoustic, finite element method

Full Paper (reprinted with permission from Firenze University Press)

Bibliographic reference.  Zörner, S. / Kaltenbacher, M. / Döllinger, Michael (2009): "Finite element model of the human phonation process", In MAVEBA-2009, 207-209.