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

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 (...

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Main Authors: Zhao, Liya, Tang, Lihua, Yang, Yaowen
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2014
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Online Access:https://hdl.handle.net/10356/99876
http://hdl.handle.net/10220/24060
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-998762020-03-07T11:43:46Z Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester Zhao, Liya Tang, Lihua Yang, Yaowen School of Civil and Environmental Engineering DRNTU::Engineering::Materials::Energy materials 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. Accepted version 2014-10-17T03:17:52Z 2019-12-06T20:12:48Z 2014-10-17T03:17:52Z 2019-12-06T20:12:48Z 2013 2013 Journal Article Zhao, L., Tang, L., & Yang, Y. (2013). Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester. Smart materials and structures, 22(12), 125003-. 0964-1726 https://hdl.handle.net/10356/99876 http://hdl.handle.net/10220/24060 10.1088/0964-1726/22/12/125003 en Smart materials and structures © 2013 IOP Publishing Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Smart Materials and Structures, IOP Publishing Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:http://dx.doi.org/10.1088/0964-1726/22/12/125003]. 19 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials::Energy materials
spellingShingle DRNTU::Engineering::Materials::Energy materials
Zhao, Liya
Tang, Lihua
Yang, Yaowen
Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester
description 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.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Zhao, Liya
Tang, Lihua
Yang, Yaowen
format Article
author Zhao, Liya
Tang, Lihua
Yang, Yaowen
author_sort Zhao, Liya
title Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester
title_short Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester
title_full Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester
title_fullStr Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester
title_full_unstemmed Comparison of modeling methods and parametric study for a piezoelectric wind energy harvester
title_sort comparison of modeling methods and parametric study for a piezoelectric wind energy harvester
publishDate 2014
url https://hdl.handle.net/10356/99876
http://hdl.handle.net/10220/24060
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