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Reversing the stability of fixed points to generate oscillations in electrochemical systems: Simulations and experiments

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Title Reversing the stability of fixed points to generate oscillations in electrochemical systems: Simulations and experiments
 
Creator MONTOYA, F
RIVERA, M
PARMANANDA, P
 
Subject UNSTABLE STEADY-STATES
NONLINEAR DYNAMICS
STABILIZATION
CHAOS
 
Description In the present work, we report the induction of rhythms in electrochemical systems. Limit cycle oscillations are provoked by reversing the stability of a previously stable fixed point on which the system's dynamics were originally settled. Superimposing an appropriate perturbation term, sign of the local eigenvalues (real part) of the fixed point was changed. This alters the stability of the fixed point without varying its location. This protocol was tested both in a numerical model simulating electrochemical corrosion as well as an experimental electrochemical cell. Both numerical results and experimental observations indicate that, employing suitable perturbations, it is indeed possible to generate oscillatory behavior in nonlinear systems whose autonomous dynamics exhibit steady state behavior. (C) 2014 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2014-12-28T16:43:21Z
2014-12-28T16:43:21Z
2014
 
Type Article
 
Identifier CHAOS SOLITONS & FRACTALS, 6720-25
0960-0779
1873-2887
http://dx.doi.org/10.1016/j.chaos.2014.06.005
http://dspace.library.iitb.ac.in/jspui/handle/100/16914
 
Language English