Nonlinear piezoelectric vibration energy harvesting from a portal frame with two-to-one internal resonance

Abstract

In the few decades, the study of electromechanical systems which are capable to extract energy from an operating system in the environment has been of most importance. In this work, we present the extraction of energy from a simple portal frame structure excited by a harmonic force, where the energy harvesting is computed by using of a nonlinear piezoelectric material. The dynamical response of the system is examined, when there is 2:1 internal resonance between the symmetric and the sway mode, resulting the saturation phenomenon and vibration energy transfer between the symmetric (vertical) mode and the horizontal (sway) mode. An evaluation of the energy available for harvesting, in each of the considered modes, is computed.

Utilização De Biossorventes Para Remoção De Benzeno Em Soluções Aquosas

“…Figuras 1 e 2, observa-se a transformação das matérias-primas nos carvões ativados. Recentemente, para aumentar a geração de energia foi utilizado o fenômeno de ressonância interna (conhecida como a transferência de energia entre dois modos de vibrar em relação 1:2), presente em uma estrutura aporticada flexível sujeita a uma excitação de freqüência variável no topo ou na base da estrutura (FELIX et al, 2014;ROCHA et. al, 2017).…”

Chaotification in an internal-resonance-based electromagnetic vibration energy harvester

“…The amplitude-frequency response of an internal-resonance-based VEH bends to both directions which could broaden the bandwidth [21,22]. As a result, internal resonance has been explored as a possible control mechanism to enhance the harvesting efficiency for the VEHs [23][24][25][26][27][28].…”

Complex response of an oscillating vertical cantilever with clearance

“…Appearance of inclined nonlinear resonance backbone curves, introducing multiple solutions with additional nonlinear resonances guaranteed broadening of the frequency bands in nonlinear resonators. This direction opened an development of application vibrational energy harvesting to the sources of variable amplitude and frequency, to modulated vibrations, vibrations with random components and non-ideal sources of vibrations [15][16][17][18].…”