BECAS
GIULIANO Martin Ezequiel
artículos
Título:
Efficiency of energy harvesting out of colored Lévy fluctuations, by a harmonic oscillator with piezoelectric transducer
Autor/es:
GIULIANO, MARTÍN E.; SÁNCHEZ, ALEJANDRO D.; COMBI, BRUNO; DEZA, ROBERTO R.
Revista:
EUROPHYSICS LETTERS
Editorial:
EPL ASSOCIATION
Referencias:
Año: 2023
ISSN:
0295-5075
Resumen:
The efficiency of a linear kinetic energy harvester by piezoelectric transduction---when driven by colored $alpha-$stable L´evy noise---is the focus of this study. Analytical results are obtained for the harvested power (in the adiabatic approximation $ddot{x}cong0$ and for very large load circuit´s time constant $au_p$), which are accurately validated by numerical simulations. In addition, an analytical expression is obtained for the characteristic time the system takes to reach a stationary regime; this information is crucial to calculate averaged quantities through simulations, given the large dispersion between realizations due to the infinite variance of the L´evy noise.
