Nonlinear dynamics and control strategies: On a energy harvester vibrating system with a linear form to non-ideal motor torquet

Nonlinear dynamics and control strategies: On a energy harvester vibrating system with a linear form to non-ideal motor torquet

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In this paper, we deal with the research of a vibrating model of an energy harvester device, including the nonlinearities in the model of the piezoelectric coupling and the non-ideal excitation.We show, using numerical simulations, in the analysis of the dynamic responses, that the harvested power is STOOLS influenced by non-linear vibrations of the structure.Chaotic behavior was also observed, causing of the loss of energy throughout the simulation time.Using a perturbation technique, we find an approximate analytical solution for the non-ideal system.Then, we apply both two control techniques, to keep the considered system, into a stable condition.

Both the State Dependent Ricatti Equation (SDRE) control as the feedback control by changing the energy Vape Battery of the oscillator, were efficient in controlling of the considered non-ideal system.