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Piezoelectric vortex induced vibration energy harvesting in a random flow field

Sondipon Adhikari, Akshat Rastogi, Bishakh Bhattacharya

Smart Materials and Structures, Volume: 29, Issue: 3, Start page: 035034

Swansea University Author: Sondipon Adhikari

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DOI (Published version): 10.1088/1361-665x/ab519f

Abstract

Vibration-based energy harvesters have significant potential for sustainable energy generation from ambience for micro-scale systems like wireless sensor networks and similar low power electronic devices. Vortex-induced vibration (VIV) is one of the richest sources for such power generation for devi...

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Published in: Smart Materials and Structures
ISSN: 0964-1726 1361-665X
Published: IOP Publishing 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa53668
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spelling 2020-11-18T13:19:20.1392854 v2 53668 2019-10-28 Piezoelectric vortex induced vibration energy harvesting in a random flow field 4ea84d67c4e414f5ccbd7593a40f04d3 Sondipon Adhikari Sondipon Adhikari true false 2019-10-28 FGSEN Vibration-based energy harvesters have significant potential for sustainable energy generation from ambience for micro-scale systems like wireless sensor networks and similar low power electronic devices. Vortex-induced vibration (VIV) is one of the richest sources for such power generation for devices installed within a fluid environment. However, uncertainty in the direction and magnitude of the free stream velocity could affect the performance of such systems. We have first developed the mathematical model of a piezoelectric cantilever beam with end mass vibrating under the influence of VIV. The piezo patch is assumed to be in the unimorph and bimorph configurations. From the unimodal dynamic response of the system, an equivalent single degree of freedom mechanical model is developed. This is further integrated with the electrical model of the piezoelectric system without and with an inductor. The energy harvested from the deterministic harmonic excitation is estimated against the non-dimensional velocity parameter. A random process model is developed considering the excitation force due to vortex shedding to be a bounded, weakly stationary and narrowband random process. The power spectral density of the random process is obtained using the Fourier transform of the auto-correlation function. The dynamic response of the energy harvester is obtained against such random excitations. The expressions of the mean power are obtained in closed-form corresponding to the cases without and with the inductor integrated to the electrical circuit. It is observed that while for cases without the inductor, the average harvested power monotonically decreases with increase in damping ratio and decrease in the coupling factor; for models with the inductor, an optimal inductor constant exists corresponding to the maximum mean-power condition. The extensive analytical modelling and initial representative results are expected to pave the way for the practical design of VIV based piezoelectric energy harvesting system subjected to stochastic excitation. Journal Article Smart Materials and Structures 29 3 035034 IOP Publishing 0964-1726 1361-665X energy harvesting, piezoelectric, vortex induced vibration, stochastic, optimal design 1 3 2020 2020-03-01 10.1088/1361-665x/ab519f COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-11-18T13:19:20.1392854 2019-10-28T00:00:00.0000000 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Sondipon Adhikari 1 Akshat Rastogi 2 Bishakh Bhattacharya 3 53668__16992__e2ac8952376d476c850e8dc5510336c6.pdf 53668.pdf 2020-04-02T15:34:45.3096937 Output 1249431 application/pdf Accepted Manuscript true 2021-02-19T00:00:00.0000000 true eng
title Piezoelectric vortex induced vibration energy harvesting in a random flow field
spellingShingle Piezoelectric vortex induced vibration energy harvesting in a random flow field
Sondipon Adhikari
title_short Piezoelectric vortex induced vibration energy harvesting in a random flow field
title_full Piezoelectric vortex induced vibration energy harvesting in a random flow field
title_fullStr Piezoelectric vortex induced vibration energy harvesting in a random flow field
title_full_unstemmed Piezoelectric vortex induced vibration energy harvesting in a random flow field
title_sort Piezoelectric vortex induced vibration energy harvesting in a random flow field
author_id_str_mv 4ea84d67c4e414f5ccbd7593a40f04d3
author_id_fullname_str_mv 4ea84d67c4e414f5ccbd7593a40f04d3_***_Sondipon Adhikari
author Sondipon Adhikari
author2 Sondipon Adhikari
Akshat Rastogi
Bishakh Bhattacharya
format Journal article
container_title Smart Materials and Structures
container_volume 29
container_issue 3
container_start_page 035034
publishDate 2020
institution Swansea University
issn 0964-1726
1361-665X
doi_str_mv 10.1088/1361-665x/ab519f
publisher IOP Publishing
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Vibration-based energy harvesters have significant potential for sustainable energy generation from ambience for micro-scale systems like wireless sensor networks and similar low power electronic devices. Vortex-induced vibration (VIV) is one of the richest sources for such power generation for devices installed within a fluid environment. However, uncertainty in the direction and magnitude of the free stream velocity could affect the performance of such systems. We have first developed the mathematical model of a piezoelectric cantilever beam with end mass vibrating under the influence of VIV. The piezo patch is assumed to be in the unimorph and bimorph configurations. From the unimodal dynamic response of the system, an equivalent single degree of freedom mechanical model is developed. This is further integrated with the electrical model of the piezoelectric system without and with an inductor. The energy harvested from the deterministic harmonic excitation is estimated against the non-dimensional velocity parameter. A random process model is developed considering the excitation force due to vortex shedding to be a bounded, weakly stationary and narrowband random process. The power spectral density of the random process is obtained using the Fourier transform of the auto-correlation function. The dynamic response of the energy harvester is obtained against such random excitations. The expressions of the mean power are obtained in closed-form corresponding to the cases without and with the inductor integrated to the electrical circuit. It is observed that while for cases without the inductor, the average harvested power monotonically decreases with increase in damping ratio and decrease in the coupling factor; for models with the inductor, an optimal inductor constant exists corresponding to the maximum mean-power condition. The extensive analytical modelling and initial representative results are expected to pave the way for the practical design of VIV based piezoelectric energy harvesting system subjected to stochastic excitation.
published_date 2020-03-01T04:06:44Z
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score 11.012678

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