Engineering Mechanics

Proceedings Vol. 9 (2003)

ENGINEERING MECHANICS 2003

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

 

Horáček J., Šidlof P.
pages 110 - +10p., full text

Linear two degrees of freedom aero-elastic system for modelling vibrations of human vocal folds was originally developed by which the physiological conditions for so-called phonation thresholds were modelled. The thresholds are given by aero-elastic instabilities of divergence or flutter type. Afterwards the model was generalised taking into account the non-linear aerodynamic terms, important for small glottal openings and large vibration amplitudes. Now, after adding the Hertz's contact model for the impacts of the vocal folds into the developed aero-elastic model a complete numerical simulation of self-oscillations of the vocal folds during phonation is made possible.

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