Dynamic pull-in for micro–electromechanical device with a current-carrying conductor

Ji‐Huan He, Daulet Nurakhmetov, Piotr Sebastian Skrzypacz, Dongming Wei

Journal of low frequency noise, vibration and active control, 2019

Full text Open access: Gold Metadata (CSL-JSON)

DOI 10.1177/1461348419847298

Data confidence 85 high

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Abstract

The initial value problem for a lumped parameter model arising from design of magneto–electromechanical device with a current-carrying conductor is analyzed. The differential equation is nonlinear because it includes the magnetic force term. The analysis for the dynamic pull-in occurring in the system is presented. The pull-in threshold is given analytically in terms of model parameters. Sufficient conditions for the existence of periodic solutions are proved analytically and verified numerically. The results can be useful for understanding and design of one-degree-of-freedom models of magnetically actuated beams.