Vibration Mitigation by Two Parametric Anti-resonances in High-Q Resonators: A Preliminary Case Study

The parametric anti-resonance is a well-known phenomenon in which a properly tuned parametric excitation increases the effective damping of the overall system. A parametric anti-resonance occurs for systems with at least two degrees of freedom. This contribution presents an approach to accelerate the mitigation of transient vibrations by applying two parametric anti-resonances at different frequencies. The proposed technique is presented for a potential application in a microelectromechanical system consisting of three flexible beams.