Bifurcation and chaos in a one mass discrete time vocal fold dynamical model
Publish Year: 1400
Type: Journal paper
Language: English
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Document National Code:
JR_IJNAA-12-2_024
Index date: 2 December 2022
Bifurcation and chaos in a one mass discrete time vocal fold dynamical model abstract
In this article, we are going to study the stability and bifurcation of a two-dimensional discrete time vocal fold model. The existence and local stability of the unique fixed point of the model is investigated. It is shown that a Neimark-Sacker bifurcation occurs and an invariant circle will appear. We give sufficient conditions for this system to be chaotic in the sense of Marotto. Numerically it is shown that our model has positive Lyapunov exponent and is sensitive dependence on initial conditions. Some numerical simulations are presented to illustrate our theoretical results.
Bifurcation and chaos in a one mass discrete time vocal fold dynamical model Keywords:
Vocal fold , Neimark-Sacker bifurcation , Limit cycle , Marotto's chaos , Lyapunov exponent , Sensitive dependence on initial conditions