Dynamics of a Nonstandard Finite-Difference Scheme for a Limit Cycle Oscillator with Delayed Feedback
Author(s) -
Yuanyuan Wang,
Xiaohua Ding
Publication year - 2013
Publication title -
journal of applied mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.307
H-Index - 43
eISSN - 1687-0042
pISSN - 1110-757X
DOI - 10.1155/2013/912374
Subject(s) - limit (mathematics) , limit cycle , mathematics , hopf bifurcation , scheme (mathematics) , stability (learning theory) , control theory (sociology) , bifurcation , euler's formula , dynamics (music) , mathematical analysis , physics , computer science , nonlinear system , quantum mechanics , control (management) , machine learning , artificial intelligence , acoustics
We consider a complex autonomously driven single limit cycle oscillator with delayed feedback. The original model is translated to a two-dimensional system. Through a nonstandard finite-difference (NSFD) schemewe study the dynamics of this resulting system. The stability of the equilibrium of the model is investigatedby analyzing the characteristic equation. In the two-dimensional discrete model, we find that there are stability switches on thetime delay and Hopf bifurcation when the delay passes a sequence of criticalvalues. Finally, computer simulations are performed to illustrate thetheoretical results. And the results show that NSFD scheme is better than the Euler method
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