Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow

The aim of this work is to design a piezoelectric power generation system that extracts power from the vibration of a cantilever beam. A semi-cylinder placed in a water stream and attached to the beam is excited into vortex-induced vibrations (VIV), which triggers the piezoelectric deformation. The...

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Autores principales:	Christina Hamdan, John Allport, Azadeh Sajedin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	piezoelectric power generation vortex-induced vibrations cantilever beam VIV generator Technology T
Acceso en línea:	https://doaj.org/article/5b7e65405c94452eb47f00d1d415e258
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id	oai:doaj.org-article:5b7e65405c94452eb47f00d1d415e258
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spelling	oai:doaj.org-article:5b7e65405c94452eb47f00d1d415e2582021-11-11T15:47:13ZPiezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow10.3390/en142169641996-1073https://doaj.org/article/5b7e65405c94452eb47f00d1d415e2582021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/6964https://doaj.org/toc/1996-1073The aim of this work is to design a piezoelectric power generation system that extracts power from the vibration of a cantilever beam. A semi-cylinder placed in a water stream and attached to the beam is excited into vortex-induced vibrations (VIV), which triggers the piezoelectric deformation. The mechanical system is modelled using parametric equations based on Hamilton’s extended principle for the cantilever beam and the modified Van der Pol model for the bluff body (the semi-cylinder). These equations are simulated using the MATLAB software. The dimensions of the model, the flow velocity and the resistance are treated as design parameters and an optimization study is conducted using MATLAB to determine the combination of optimal values at which maximum power is extracted. The key findings of this research lie in the identification of the effect of changing the design parameters on output power. In addition to the numerical simulation, a finite element analysis is carried out on the bluff body and the hydrodynamic forces and velocity profiles are observed. It is determined that the vibration amplitudes increase with increasing diameter of the bluff body, length of the bluff body and water velocity.Christina HamdanJohn AllportAzadeh SajedinMDPI AGarticlepiezoelectricpower generationvortex-induced vibrationscantilever beamVIV generatorTechnologyTENEnergies, Vol 14, Iss 6964, p 6964 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	piezoelectric power generation vortex-induced vibrations cantilever beam VIV generator Technology T
spellingShingle	piezoelectric power generation vortex-induced vibrations cantilever beam VIV generator Technology T Christina Hamdan John Allport Azadeh Sajedin Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow
description	The aim of this work is to design a piezoelectric power generation system that extracts power from the vibration of a cantilever beam. A semi-cylinder placed in a water stream and attached to the beam is excited into vortex-induced vibrations (VIV), which triggers the piezoelectric deformation. The mechanical system is modelled using parametric equations based on Hamilton’s extended principle for the cantilever beam and the modified Van der Pol model for the bluff body (the semi-cylinder). These equations are simulated using the MATLAB software. The dimensions of the model, the flow velocity and the resistance are treated as design parameters and an optimization study is conducted using MATLAB to determine the combination of optimal values at which maximum power is extracted. The key findings of this research lie in the identification of the effect of changing the design parameters on output power. In addition to the numerical simulation, a finite element analysis is carried out on the bluff body and the hydrodynamic forces and velocity profiles are observed. It is determined that the vibration amplitudes increase with increasing diameter of the bluff body, length of the bluff body and water velocity.
format	article
author	Christina Hamdan John Allport Azadeh Sajedin
author_facet	Christina Hamdan John Allport Azadeh Sajedin
author_sort	Christina Hamdan
title	Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow
title_short	Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow
title_full	Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow
title_fullStr	Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow
title_full_unstemmed	Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow
title_sort	piezoelectric power generation from the vortex-induced vibrations of a semi-cylinder exposed to water flow
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5b7e65405c94452eb47f00d1d415e258
work_keys_str_mv	AT christinahamdan piezoelectricpowergenerationfromthevortexinducedvibrationsofasemicylinderexposedtowaterflow AT johnallport piezoelectricpowergenerationfromthevortexinducedvibrationsofasemicylinderexposedtowaterflow AT azadehsajedin piezoelectricpowergenerationfromthevortexinducedvibrationsofasemicylinderexposedtowaterflow
_version_	1718434025605955584

Piezoelectric Power Generation from the Vortex-Induced Vibrations of a Semi-Cylinder Exposed to Water Flow

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