Research
Communication | Open Access
Volume 2021 | Communication ID 4
Volume 2021 | Communication ID 4
Delayed feedback control for the performance of a flow energy harvester |
Zakaria Ghouli
Received |
Accepted |
Published |
April 12, 2021 |
April 25, 2021 |
July 15, 2021 |
Abstract: The present work examines periodic vibration-based energy harvesting in a delayed harvester device consisting of a delayed nonlinear oscillator subject to galloping excitation and coupled to an electric circuit through a piezoelectric coupling mechanism. It is assumed that the delay amplitude is modulated such that the frequency of the modulation is near twice the natural frequency of the oscillator. Application of the method of multiple scales gives approximation of the amplitude of periodic vibrations and the corresponding power extracted from the harvester device. Results show that the ...