Affiliations: Institute for Transport Studies, University of Natural
Resources and Life Sciences, Vienna, Austria | Institute of Mechanics and Mechatronics, Vienna
University of Technology, Vienna, Austria
Note: [] Corresponding author: Johannes Welte, Institute for Transport
Studies, University of Natural Resources and Life Sciences, Gregor Mendel
Straße 33, 1180 Vienna, Austria. E-mail: johannes.welte@boku.ac.at
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.
