Original title: Numerical simulation of video-kymographic records of the vocal fold vibration
Authors: Vampola, T. ; Horáček, Jaromír
Document type: Papers
Conference/Event: Engineering Mechanics 2014 /20./, Svratka (CZ), 2014-05-12 / 2014-05-15
Year: 2014
Language: eng
Abstract: The reconstruction of the video-kymographic records from the numerical simulation of the vocal fold vibration is used for prediction of the type of vocal fold damaged. Three-dimensional (3D) finite element (FE) fully parametric model of the human larynx was developed and used for numerical simulation of stresses during vibrating vocal folds with collisions. The complex model consists of the vocal folds, arytenoids, thyroid and cricoid cartilages. The vocal fold tissue is modeled as a three layered transversal isotropic material. The results of numerical simulation of the vocal folds oscillations excited by a prescribed intraglottal aerodynamic pressure are presented. The FE contact elements are used for modelling the vocal folds collisions and the stresses in the vocal fold tissue are computed in time domain. The damaged of the ligament tissue is simulated by the modification of the modulus of elasticity. The video-kymographic records are reconstructed for health and damaged vocal folds. The results show significant dynamic stresses in all there directions (horizontal, vertical and anterior-posterior).
Keywords: 3D FE model of human larynx; biomechanics of human voice; video-kymographic record; vocal fold vibration
Project no.: GAP101/12/1306 (CEP)
Funding provider: GA ČR
Host item entry: Engineering mechanics 2014, ISBN 978-80-214-4871-1, ISSN 1805-8248

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0239518

Permalink: http://www.nusl.cz/ntk/nusl-177621


The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers