Finite element modal analysis of a silicone vocal fold filled with fluid

0575537 - ÚT 2024 CZ eng C - Conference Paper (international conference)
Hájek, P. - Radolf, Vojtěch - Horáček, Jaromír - Švec, J. G.
Finite element modal analysis of a silicone vocal fold filled with fluid.
Engineering Mechanics 2023. Prague: Institute of Thermomechanics of the Czech Academy of Sciences, 2023 - (Radolf, V.; Zolotarev, I.), s. 87-90. ISBN 978-80-87012-84-0. ISSN 1805-8248. E-ISSN 1805-8256.
[Engineering Mechanics 2023 /29./. Milovy (CZ), 09.05.2023-11.05.2023]
Institutional support: RVO:61388998
Keywords : perturbed modal analysis * finite element method * vocal folds * reverse engineering * biomechanics of voice
OECD category: Acoustics
https://www.engmech.cz/improc/2023/087.pdf

A three dimensional (3D) finite element (FE) model of a silicone vocal fold (VF) filled with fluid is presented here. The silicone part of the model is based on partial differential equations of the continuum mechanics and consider large deformations. The fluid domain encapsulated in the silicone VF is defined semianalytically as a lumped-element model describing the fluid in hydrostatic conditions. The elongated and pressurized silicone VF was subjected to perturbed modal analysis. Results showed that the choice of the fluid inside the VF substantially influences the natural frequencies. Namely, the water-filling lowers the natural frequencies approximately by half over the air-filling. Besides, the procedure of reverse engineering for obtaining the geometry of the VF from already 3D-printed mold is introduced.
Permanent Link: https://hdl.handle.net/11104/0349485