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Research Papers

Dynamical Behavior of a Capacitive Microelectromechanical System Powered by a Hindmarsh–Rose Electronic Oscillator

[+] Author and Article Information
U. Simo Domguia, L. T. Abobda

Laboratory of Modelling and
Simulation in Engineering,
Biomimetics and Prototypes and
TWAS Research Unit,
Faculty of Sciences,
University of Yaoundé I,
P.O. Box 812,
Yaoundé, Cameroon

P. Woafo

Laboratory of Modelling and
Simulation in Engineering,
Biomimetics and Prototypes and
TWAS Research Unit,
Faculty of Sciences,
University of Yaoundé I,
P.O. Box 812,
Yaoundé, Cameroon;
Applied Physics Research Group (APHY),
Vrije Universiteit Brussel,
Pleinlaan 2,
Brussels 1050, Belgium
e-mail: pwoafo1@yahoo.fr

1Corresponding author.

Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received June 16, 2015; final manuscript received December 10, 2015; published online February 3, 2016. Assoc. Editor: Mohammad Younis.

J. Comput. Nonlinear Dynam 11(5), 051006 (Feb 03, 2016) (7 pages) Paper No: CND-15-1166; doi: 10.1115/1.4032276 History: Received June 16, 2015; Revised December 10, 2015

A capacitive microelectromechanical system (MEMS) powered by a Hindmarsh–Rose (HR)-like electronic oscillator is considered not only for actuation purposes but also to mimic the action of a natural pacemaker and nerves on a cardiac assist device or artificial heart. It is found that the displacement/flexion of the MEMS undergoes bursting and spiking oscillations resulting from the transfer of the electronic signal, when one varies the damping coefficient and the applied DC current.

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References

Figures

Grahic Jump Location
Fig. 2

Evolution of the electrical signal and mechanical displacement as the damping coefficient ε2 increases in the bursting regime with II  = 1.5

Grahic Jump Location
Fig. 3

Time histories for different values of the applied DC current showing transition from bursting oscillations to spikes in electrical oscillator and MEMS for the damping coefficient ε2  = 0.32

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