Fifth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)

Florence, Italy
December 13-15, 2007

Three-Dimensional Finite Element Modelling of Vocal Folds Vibration in the Human Larynx

T. Vampola (1), Jaromír Horáček (2), I. Klepáček (3)

(1) Department of of Mechanics, Biomechanics and Mechatronics, Faculty of Mechanical Engineering, Czech Technical University in Prague, Czech Republic
(2) Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Czech Republic
(3) 3rd Faculty of Medicine, Charles University, Prague, Czech Republic

3D-FE model of the larynx including the vocal folds, arytenoid, thyroid and cricoid cartilages was developed. The vocal fold tissue is modeled as a three layered material representing the epithelium vocal ligament and muscle. First, the frequency modal analysis of the model was performed for nonlinear material characteristics and increasing pre-stress of the vocal folds. Then the results of numerical simulation of the vocal folds oscillations excited by a prescribed aerodynamic pressure loading the surface of the tissue is presented. The FE contact elements are used for modeling the vocal folds collisions.
Index Terms. Biomechanics of human voice, parametric FE model of the human larynx, numerical simulation of the vocal folds vibration

Full Paper (reprinted with permission from Firenze University Press)

Bibliographic reference.  Vampola, T. / Horáček, Jaromír / Klepáček, I. (2007): "Three-dimensional finite element modelling of vocal folds vibration in the human larynx", In MAVEBA-2007, 43-46.