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FE modelling of the fluid-structure-acoustic interaction for the vocal folds self-oscillation
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SYSNO ASEP 0363365 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title FE modelling of the fluid-structure-acoustic interaction for the vocal folds self-oscillation Author(s) Švancara, P. (CZ)
Horáček, Jaromír (UT-L) RID, ORCID
Hrůza, V. (CZ)Source Title Vibration Problems ICOVP 2011. - Berlin : Springer, 2011 / Náprstek J. ; Horáček J. ; Okrouhlík M. ; Marvalová B. ; Verhulst F. ; Sawicki J.T. - ISSN 0930-8989 - ISBN 978-94-007-2068-8 Pages s. 801-807 Number of pages 7 s. Action International Conference on Vibration Problems /10./ - ICOVP 2011 Event date 05.09.2011-08.09.2011 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country DE - Germany Keywords biomechanics of human voice ; numerical simulation of voice production ; self-oscilation Subject RIV BI - Acoustics CEZ AV0Z20760514 - UT-L (2005-2011) Annotation The flow induced self/oscillation of the human vocal folds in interaction with acoustic processes on the simplified vocal tract model was explored by 3D FE model. Developed FE model includes vocal folds pretension before phonation, large deformations of the vocal tissue, vocal folds contact, fluid-structure interaction, morphing the fluid mesh according the vocal folds motion (ALE approach), unsteady viscous compressible airflow described by the Navier-Stokes equations and airflow separation during the glottis closure. Iterative partitioned approach is used for modelling the fluid-structure interaction. Computed results prove that the developed model can be used for simulation of the vocal folds self-oscillation and resulting acoustic waves. The developed model enables to numerically simulate an influence of some pathological changes in the vocal fold tissue on the voice production. 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 2012
Number of the records: 1