Nonlinear oscillations in a MEMS energy scavenger

Nonlinear oscillations in a MEMS energy scavenger

The dynamics of an electret-based, capacitive, vibration-to-electric micro-converter (energy scavenger) is described by a set of ODEs where a second-order equation is coupled to two first-order equations through strongly-nonlinear terms. The nonlinear regimes of forced oscillations are analyzed with a semi-analytical approach, finding that the system exhibits features typical of Duffing-like no...

Energy Harvesting from the Nonlinear Oscillations of Magnetic Levitation

This paper investigates the design and analysis of a novel energy harvesting device that uses magnetic levitation to produce an oscillator with a tunable resonance. The governing equations for the mechanical and electrical domains are derived to show the designed system reduces to the form of a Duffing oscillator under both static and dynamic loads. Thus, nonlinear analyses are required to inve...

Nonlinear Oscillations of a Submarine

This is a part of the general program of investigation of nonlinear diierential equations by wavelet{homoclinic methods. We consider the problem of description of oscillation of a beam (circular cylindrical shell) contacting with a semi-innnite channel lled with compressible liquid (a model for submarine oscillations). We consider our problem for the case of two-frequency parametric perturbatio...

Utilising Nonlinear Air Damping as a Soft Mechanical Stopper for MEMS Vibration Energy Harvesting

Nonlinear Oscillations in Power Circuits

This paper presents the overview of studies on the abnormal oscillations which have been occurred in the power transmission systems in Japan. It also focuses on the recent studies of the dynamics of the subharmonic oscillation of order 113 in a nonlinear three-phase circuit which is the fundamental model of the series-compensated transmission line.