BECAS
BELTRAMO Emmanuel
artículos
Título:
Constructive Aerodynamic Interference in a Network of Weakly Coupled Flutter-Based Energy Harvesters
Autor/es:
BELTRAMO, EMMANUEL; PÉREZ SEGURA, MARTÍN EDUARDO; ROCCIA, BRUNO ANTONIO; VALDEZ, MARCELO FEDERICO; VERSTRAETE, MARCOS LEONARDO; PREIDIKMAN, SERGIO
Revista:
Aerospace
Editorial:
MDPI
Referencias:
Lugar: Basel; Año: 2020 vol. 7 p. 1 - 29
ISSN:
2226-4310
Resumen:
Converting flow-induced vibrations into electricity for low-power generation has receivedgrowing attention over the past few years. Aeroelastic phenomena, good candidates to yield highenergy performance in renewable wind energy harvesting (EH) systems, can play a pivotal role inproviding sucient power for extended operation with little or no battery replacement. In this paper,a numerical model and a co-simulation approach have been developed to study a new EH devicefor power generation. We investigate the problem focusing on a weakly aerodynamically coupledflutter-based EH system. It consists of two flexible wings anchored by cantilevered beams withattached piezoelectric layers, undergoing nonlinear coupled bending?torsion limit cycle oscillations.Besides the development of individual EH devices, further issues are posed when consideringmultiple objects for realizing a network of devices and magnifying the extracted power due tononlinear synergies and constructive interferences. This work investigates the eect of variousexternal conditions and physical parameters on the performance of the piezoaeroelastic array ofdevices. From the viewpoint of applications, we are most concerned about whether an EH cangenerate sucient power under a variable excitation. The results of this study can be used forthe design and integration of low-energy wind generation technologies into buildings, bridges,and built-in sensor networks in aircraft structures.