Analytical modeling and validation of multi-mode piezoelectric energy harvester

Energy consumption of electronic devices continues to reduce dramatically, enabling the ambient energy harvesting devices as a solution for powering the wireless sensor nodes (WSNs), micro-electromechanical systems and portable electronics. Over the years, vibration-based piezoelectric harvesting ha...

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Main Authors: Li, Xiangyang, Upadrashta, Deepesh, Yu, Kaiping, Yang, Yaowen
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/151294
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1512942021-07-02T03:39:05Z Analytical modeling and validation of multi-mode piezoelectric energy harvester Li, Xiangyang Upadrashta, Deepesh Yu, Kaiping Yang, Yaowen School of Civil and Environmental Engineering Engineering::Civil engineering Piezoelectric Energy Harvesting Multi-mode Energy consumption of electronic devices continues to reduce dramatically, enabling the ambient energy harvesting devices as a solution for powering the wireless sensor nodes (WSNs), micro-electromechanical systems and portable electronics. Over the years, vibration-based piezoelectric harvesting has been emerged as a potential technology to recharge/replace chemical batteries in WSNs. A conventional linear piezoelectric energy harvester (PEH) cannot meet the requirement of broadband vibration resources as it generates useful power only in a narrow bandwidth near the resonant frequency. Several techniques such as passive/active resonance tuning, array of harvester beams, nonlinear designs and multi-degree-of-freedom energy harvesters have been investigated. This paper proposes a generalized multi-mode PEH (MPEH) accompanied with analytical modeling, which generates multiple close peaks of voltage output from low amplitude broadband and low frequency ambient vibration sources. The proposed MPEH comprises of a main cantilevered beam bonded with a patch of piezoelectric layer and attached with multiple branches with tip masses at their free ends. The useful bandwidth and the number of peaks for the MPEH could be tuned conveniently by varying multiple branches and tip masses. The proposed MPEH offers high design flexibility in tuning geometric parameters for achieving target frequencies and generates high power density. The mathematical modeling of generalized MPEH under transverse harmonic base vibrations is presented and the dynamic equations of the multi-modal harvester system are obtained following the Lagrangian method. The derived distributed parametric model of MPEH is more accurate than lumped parametric models of PEHS presented in the literature. The accuracy of the proposed analytical model is validated by two examples with numerical simulation and experimental results. It is shown that the multi-mode PEH has potential to generate sufficient power output from broadband vibration sources to sustain low-power electronic devices. This work is supported by the National Natural Science Foundation of China (Grant No. 11372084) and the China Scholarship Council (Grant No. 201706120082). The supports are gratefully acknowledged. Authors thank Prof. John E Mottershead from University of Liverpool for his valuable suggestions. 2021-07-02T03:39:04Z 2021-07-02T03:39:04Z 2019 Journal Article Li, X., Upadrashta, D., Yu, K. & Yang, Y. (2019). Analytical modeling and validation of multi-mode piezoelectric energy harvester. Mechanical Systems and Signal Processing, 124, 613-631. https://dx.doi.org/10.1016/j.ymssp.2019.02.003 0888-3270 0000-0002-2549-5973 0000-0002-7722-0138 https://hdl.handle.net/10356/151294 10.1016/j.ymssp.2019.02.003 2-s2.0-85061308180 124 613 631 en Mechanical Systems and Signal Processing © 2019 Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering
Piezoelectric Energy Harvesting
Multi-mode
spellingShingle Engineering::Civil engineering
Piezoelectric Energy Harvesting
Multi-mode
Li, Xiangyang
Upadrashta, Deepesh
Yu, Kaiping
Yang, Yaowen
Analytical modeling and validation of multi-mode piezoelectric energy harvester
description Energy consumption of electronic devices continues to reduce dramatically, enabling the ambient energy harvesting devices as a solution for powering the wireless sensor nodes (WSNs), micro-electromechanical systems and portable electronics. Over the years, vibration-based piezoelectric harvesting has been emerged as a potential technology to recharge/replace chemical batteries in WSNs. A conventional linear piezoelectric energy harvester (PEH) cannot meet the requirement of broadband vibration resources as it generates useful power only in a narrow bandwidth near the resonant frequency. Several techniques such as passive/active resonance tuning, array of harvester beams, nonlinear designs and multi-degree-of-freedom energy harvesters have been investigated. This paper proposes a generalized multi-mode PEH (MPEH) accompanied with analytical modeling, which generates multiple close peaks of voltage output from low amplitude broadband and low frequency ambient vibration sources. The proposed MPEH comprises of a main cantilevered beam bonded with a patch of piezoelectric layer and attached with multiple branches with tip masses at their free ends. The useful bandwidth and the number of peaks for the MPEH could be tuned conveniently by varying multiple branches and tip masses. The proposed MPEH offers high design flexibility in tuning geometric parameters for achieving target frequencies and generates high power density. The mathematical modeling of generalized MPEH under transverse harmonic base vibrations is presented and the dynamic equations of the multi-modal harvester system are obtained following the Lagrangian method. The derived distributed parametric model of MPEH is more accurate than lumped parametric models of PEHS presented in the literature. The accuracy of the proposed analytical model is validated by two examples with numerical simulation and experimental results. It is shown that the multi-mode PEH has potential to generate sufficient power output from broadband vibration sources to sustain low-power electronic devices.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Li, Xiangyang
Upadrashta, Deepesh
Yu, Kaiping
Yang, Yaowen
format Article
author Li, Xiangyang
Upadrashta, Deepesh
Yu, Kaiping
Yang, Yaowen
author_sort Li, Xiangyang
title Analytical modeling and validation of multi-mode piezoelectric energy harvester
title_short Analytical modeling and validation of multi-mode piezoelectric energy harvester
title_full Analytical modeling and validation of multi-mode piezoelectric energy harvester
title_fullStr Analytical modeling and validation of multi-mode piezoelectric energy harvester
title_full_unstemmed Analytical modeling and validation of multi-mode piezoelectric energy harvester
title_sort analytical modeling and validation of multi-mode piezoelectric energy harvester
publishDate 2021
url https://hdl.handle.net/10356/151294
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