INFLUENCE OF THE PIEZOELECTRIC CONSTITUTIVE AND MECHANICAL DUFFING-TYPE NONLINEARITIES ON VIBRATION-BASED ENERGY HARVESTING

Vibration-based energy harvesting has the main objective to convert available environment mechanical energy into electrical energy. Piezoelectric materials are usually employed to promote the mechanical-electrical conversion. This work investigates the influence of nonline...

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Detalles Bibliográficos
Autores: Cellular, Ana Carolina, Savi, Marcelo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Brasil
Institución:Universidade de Brasília (UnB)
Repositorio:Revista Interdisciplinar de Pesquisa em Engenharia
Idioma:inglés
OAI Identifier:oai:ojs.pkp.sfu.ca:article/21786
Acceso en línea:https://periodicos.unb.br/index.php/ripe/article/view/21786
Access Level:acceso abierto
Palabra clave:Smart Materials. Nonlinear Dynamics. Chaos, Energy Harvesting. Piezoelectricity.
Descripción
Sumario:Vibration-based energy harvesting has the main objective to convert available environment mechanical energy into electrical energy. Piezoelectric materials are usually employed to promote the mechanical-electrical conversion. This work investigates the influence of nonlinear effects in piezoelectric vibration-based energy harvesting. Mechanical nonlinearities are treated considering Duffing-type mechanical oscillator. Piezoelectric nonlinearities are analyzed assuming quadratic constitutive coupling model. Energy harvesting performance is evaluated for different system characteristics being monitored by the input and the generated power. Numerical simulations are carried out considering different kinds of responses, including periodic and chaotic regimes.