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Strongly‐coupled modelling and analysis of energy harvesting devices
Author(s) -
Zilian Andreas,
Ravi Srivathsan
Publication year - 2016
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201610241
Subject(s) - energy harvesting , piezoelectricity , finite element method , energy flow , mechanics , electric potential energy , power (physics) , flow (mathematics) , energy (signal processing) , electrical network , electronic circuit , mechanical engineering , computer science , electrical engineering , acoustics , physics , engineering , structural engineering , thermodynamics , quantum mechanics
A monolithic approach is proposed that provides simultaneous modelling and analysis of the harvester, which involves surface‐coupled fluid‐structure interaction, volume‐coupled electro‐ mechanics and a controlling energy harvesting circuit for applications in energy harvesting. A space‐time finite element approximation is used for numerical solution of the weighted residual form of the governing equations of the flow‐driven piezoelectric energy harvesting device. This method enables time‐domain investigation of different types of structures (plate, shells) subject to exterior/interior flow with varying cross sections, material compositions, and attached electrical circuits with respect to the electrical power output generated. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)