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The stress analysis of the human vocal fold
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SYSNO ASEP 0332481 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The stress analysis of the human vocal fold Title Napěťová analýza lidských hlasivek Author(s) Vampola, T. (CZ)
Horáček, Jaromír (UT-L) RID, ORCIDSource Title Proceedings Interaction and Feedbacks 2009. - Praha : Ústav termomechaniky AV ČR, v. v. i., 2009 / Zolotarev I. - ISBN 978-80-87012-23-9 Pages s. 65-74 Number of pages 10 s. Action Interaction and Feedbacks 2009 Event date 24.11.2009-25.11.2009 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords biomechanics of voice ; vocal folds vibration ; FE modeling Subject RIV BI - Acoustics R&D Projects GA101/08/1155 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation A 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 the collisions. The complex model consists of the vocal folds, arytenoids, thyroid and cricoid cartilages. The vocal fold tissue is modelled as a three layered orthotropic 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 modelling the vocal folds collisions and the principal and shear stresses are computed in time domain on the surface and inside the vocal fold tissue. The results show significant dynamic stresses in all there directions and comparable maxima of Von Mises stresses were obtained for closed and open phases of the vocal folds motion. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2010
Number of the records: 1