Engineering Mechanics

International Conference

Proceedings Vol. 9 (2003)


May 11 – 15, 2003, Svratka, Czech Republic
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 80-86246-18-3 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Acoustic analysis of velopharyngeal insufficiency
Vokřál J., Černý L., Měřínská S.
pages 380 - +8p., full text

The aim of this study was to compare the approximate finite element model of acoustic spaces corresponding to the human adult male vocal tract and nasal cavity with the influence of the cleft palate to the clinical observations. The FE models for Czech vowels "A" and "I" were analysed for increasing size of a cleft by using modal analysis of the FE models. The experimental verification was performed by normal subjects (continual changes of opening of the soft palate and nasalization of vowels following nasal consonant) and patients with velopharyngeal insufficiency. The results of numerical solutions are in a reasonable agreement with clinical observations.

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