Engineering Mechanics

International Conference

Proceedings Vol. 29 (2023)


ENGINEERING MECHANICS 2023

29th INTERNATIONAL CONFERENCE
May 9 – 11, 2023, Milovy, Czech Republic
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Editors: Vojtěch Radolf and Igor Zolotarev

Copyright © 2023 Institute of Thermomechanics of the Czech Academy of Sciences, Prague

ISBN 978-80-87012-84-0 (printed)
ISBN 978-80-87012-84-0 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

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Finite element modal analysis of a silicone vocal fold filled with fluid
Hájek P., Radolf V., Horáček J., Švec J.G.
pages 87 - 90, full text

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.


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