Shock and Vibration

Shock and Vibration / 2013 / Article
Special Issue

Nonlinear Vibrations in Elastic Structures: Dynamics and Control

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Open Access

Volume 20 |Article ID 502109 | 12 pages | https://doi.org/10.3233/SAV-130826

Parametric Excitation in a Two Degree of Freedom MEMS System

Received11 Oct 2013
Accepted11 Oct 2013

Abstract

This contribution investigates the influence of parametric excitation on the dynamic stability of a microelectromechanical system. In systems with just a single degree of freedom, parametric excitation causes the oscillator to exhibit unstable behavior within certain intervals of the parametric excitation frequency. In multi-degree of freedom systems on the other hand, unstable behavior is caused within a wider range of intervals of the parametric excitation frequency. Moreover, such systems show frequency intervals of enhanced stability, an effect known as anti-resonance phenomenon. Both types of phenomena, the parametric resonance and anti-resonance, are modeled and studied for a microelectromechanical system with two degrees of freedom and some novel results are discussed.

Copyright © 2013 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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