Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester

Show simple item record Zhao, L en Tang, Lihua en Yang, Y en 2018-10-23T01:43:54Z en 2013 en
dc.identifier.issn 0964-1726 en
dc.identifier.uri en
dc.description.abstract Harvesting flow energy by exploiting transverse galloping of a bluff body attached to a piezoelectric cantilever is a prospective method to power wireless sensing systems. In order to better understand the electroaeroelastic behavior and further improve the galloping piezoelectric energy harvester (GPEH), an effective analytical model is required, which needs to incorporate both the electromechanical coupling and the aerodynamic force. Available electromechanical models for the GPEH include the lumped parameter single-degree-of-freedom (SDOF) model, the approximated distributed parameter model based on Rayleigh–Ritz discretization, and the distributed parameter model with Euler–Bernoulli beam representation. Each modeling method has its own advantages. The corresponding aerodynamic models are formulated using quasi-steady hypothesis (QSH). In this paper, the SDOF model, the Euler–Bernoulli distributed parameter model using single mode and the Euler–Bernoulli distributed parameter model using multi-modes are compared and validated with experimental results. Based on the comparison and validation, the most effective model is employed for the subsequent parametric study. The effects of load resistance, wind exposure area of the bluff body, mass of the bluff body and length of the piezoelectric sheets on the power output are investigated. These simulations can be exploited for designing and optimizing GPEHs for better performance. en
dc.relation.ispartofseries Smart Materials and Structures en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri en
dc.title Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester en
dc.type Journal Article en
dc.identifier.doi 10.1088/0964-1726/22/12/125003 en
pubs.issue 12 en
pubs.begin-page 125003 en
pubs.volume 22 en
dc.rights.holder Copyright: The author en
pubs.end-page 125003 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 430845 en Engineering en Mechanical Engineering en
dc.identifier.eissn 1361-665X en
pubs.number 125003 en
pubs.record-created-at-source-date 2014-03-24 en

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