IFIMAR 20926
INSTITUTO DE INVESTIGACIONES FISICAS DE MAR DEL PLATA
Unidad Ejecutora - UE
artículos
Título:
Enhancing energy harvesting by coupling monostable oscillators
Autor/es:
PEÑA ROSSELLÓ, JULIÁN IGNACIO; HORACIO S. WIO; ROBERTO R. DEZA; PETER HÄNGGI ; PEÑA ROSSELLÓ, JULIÁN IGNACIO; HORACIO S. WIO; ROBERTO R. DEZA; PETER HÄNGGI
Revista:
EUROPEAN PHYSICAL JOURNAL B - CONDENSED MATTER
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2017
ISSN:
1434-6028
Resumen:
The performance of a ring of linearly coupled, monostable nonlinear oscillators is optimizedtowards its goal of acting as energy harvester|through piezoelectric transduction|of mesoscopic fluctuations, which are modeled as Ornstein{Uhlenbeck noises. For a single oscillator, the maximum output voltage and overall eciency are attained for a soft piecewise-linear potential (providing a weak attractive constant force) but they are still fairly large for a harmonic potential. When several harmonic springs are linearly and bidirectionally coupled to form a ring, it is found that counter-phase coupling can largely improve the performance while in-phase coupling worsens it. Moreover, it turns out that few (two or three) coupled units perform better than more.
