Nonlinear damping in energy harvesters driven by colored noise



Título del documento: Nonlinear damping in energy harvesters driven by colored noise
Revista: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000460988
ISSN: 0035-001X
Autores: 1
1
Instituciones: 1Instituto Politécnico Nacional, Escuela Superior de Ingeniería Mecánica y Eléctrica, Coyoacan. México
Año:
Periodo: Nov-Dic
Volumen: 64
Número: 6
Paginación: 642-646
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés We study the performance of an electromechanical oscillator as an energy harvester driven by finite-bandwidth random vibrations under the influence of both a stiffness-type nonlinearity and a nonlinear damping that has recently been found to be relevant in the dynamics of submicrometer mechanical resonators. The device was numerically simulated and its performance assessed by means of the net electrical power and the efficiency of the conversion of the supplied power by the noise into electrical power for exponentially correlated noise. We tune the parameters to achieve a good performance of the device for non-negligible amplitudes of the nonlinearity of the oscillator and the damping
Disciplinas: Física y astronomía
Palabras clave: Física,
Captación de energía,
Fricción no lineal,
Amplio espectro
Keyword: Physics,
Energy harvesting,
Nonlinear friction,
Wide spectrum
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