title: The impact of glottal area discontinuities on block-type vocal fold models with asymmetric tissue properties.
abstract: Block-type lumped-element models of the vocal folds are widely used for speech investigations due in part to the rich dynamics exhibited over a range of input parameters, particularly for asymmetric tissue properties. While self-consistent in derivation and application, block-type models of the vocal fold masses are inherently susceptible to non-physical aerodynamic loading conditions when vocal fold motion is highly asymmetric. A standard block-type model is compared against two modified models that disallow the non-physiological loading condition. These minor modifications toward a more physiologically relevant aerodynamic model alter the specific vibration regimes and prevalence of chaos, though bifurcations still exist.
authors: Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada. demsomme@uwaterloo.ca
authors: David E
authors: DE
authors: Sommer
authors: Byron D
authors: BD
authors: Erath
authors: Matías
authors: M
authors: Zañartu
authors: Sean D
authors: SD
authors: Peterson
mesh_terms: D001696:Biomechanical Phenomena; D005931:Glottis / Q000033:anatomy & histology / Q000502:physiology*; D006801:Humans; D008953:Models, Anatomic; D008954:Models, Biological; D017711:Nonlinear Dynamics; D011312:Pressure; D013997:Time Factors; D014732:Vibration; D014827:Vocal Cords / Q000033:anatomy & histology / Q000502:physiology*