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J. Welte, T. Kniffka, H. Ecker:
"Parametric Excitation in a Two Degree of Freedom MEMS System";
Shock and Vibration, 20 (2013), 6; S. 1113 - 1124.

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.

http://dx.doi.org/10.3233/SAV-130826