Cantilever-based piezoelectric energy harvester with improved frequency range

As the world progresses towards sustainable energy, piezoelectric energy harvesting system secures an escalating interest to shape up the idea of energy harvesting for applications and devices that require small fraction of power. The current shortcoming of piezoelectricity is its narrow operating f...

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Main Author:	Huq, Syed Fahmidul
Format:	Thesis
Published:	2024
Subjects:	TK2896-2985 Production of electricity by direct energy conversion
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id	my-mmu-ep.12896
record_format	uketd_dc
spelling	my-mmu-ep.128962024-08-29T08:45:37Z Cantilever-based piezoelectric energy harvester with improved frequency range 2024-04 Huq, Syed Fahmidul TK2896-2985 Production of electricity by direct energy conversion As the world progresses towards sustainable energy, piezoelectric energy harvesting system secures an escalating interest to shape up the idea of energy harvesting for applications and devices that require small fraction of power. The current shortcoming of piezoelectricity is its narrow operating frequency bandwidth. This leads to it being only effective in limited circumstances. This study approached towards building a nexus between the variables of PEH and the outcome of the system using COMSOL Multiphysics. The study took a linear approach identifying the underlying sources to enhance the voltage and power outcome of the system. Moreover, an array model and a nonlinear model were designed and simulated to study the effects with a broader frequency range. The study showed conclusive remarks on the importance of cantilever beam configuration, piezoelectric materials, substrate materials, size and placement of the tip mass, multi-cantilever configuration and the gap between two permanent magnets on a nonlinear system. The study sufficiently proved the impact of the configuration of the PEH system to enhance the bandwidth frequency without including any external enhancement source. Configurations have shown a maximum 113.2% increase in voltage outcome compared to identical study performed in the past. Moreover, it showcased a maximum 60% increase in bandwidth by using aluminium in the configuration. The nonlinear method displayed a 92% increased bandwidth output in comparison of previously conducted experiments. The study provides a comparative analysis of the analytical model with regards to the simulated model and the previously established models. The outcome achieved from this study poses potential to pioneer to more enhanced applications and devices by using cantilever-based piezoelectric energy harvesters. 2024-04 Thesis https://shdl.mmu.edu.my/12896/ http://erep.mmu.edu.my/ masters Multimedia University Faculty of Engineering and Technology (FET) EREP ID: 12328
institution	Multimedia University
collection	MMU Institutional Repository
topic	TK2896-2985 Production of electricity by direct energy conversion
spellingShingle	TK2896-2985 Production of electricity by direct energy conversion Huq, Syed Fahmidul Cantilever-based piezoelectric energy harvester with improved frequency range
description	As the world progresses towards sustainable energy, piezoelectric energy harvesting system secures an escalating interest to shape up the idea of energy harvesting for applications and devices that require small fraction of power. The current shortcoming of piezoelectricity is its narrow operating frequency bandwidth. This leads to it being only effective in limited circumstances. This study approached towards building a nexus between the variables of PEH and the outcome of the system using COMSOL Multiphysics. The study took a linear approach identifying the underlying sources to enhance the voltage and power outcome of the system. Moreover, an array model and a nonlinear model were designed and simulated to study the effects with a broader frequency range. The study showed conclusive remarks on the importance of cantilever beam configuration, piezoelectric materials, substrate materials, size and placement of the tip mass, multi-cantilever configuration and the gap between two permanent magnets on a nonlinear system. The study sufficiently proved the impact of the configuration of the PEH system to enhance the bandwidth frequency without including any external enhancement source. Configurations have shown a maximum 113.2% increase in voltage outcome compared to identical study performed in the past. Moreover, it showcased a maximum 60% increase in bandwidth by using aluminium in the configuration. The nonlinear method displayed a 92% increased bandwidth output in comparison of previously conducted experiments. The study provides a comparative analysis of the analytical model with regards to the simulated model and the previously established models. The outcome achieved from this study poses potential to pioneer to more enhanced applications and devices by using cantilever-based piezoelectric energy harvesters.
format	Thesis
qualification_level	Master's degree
author	Huq, Syed Fahmidul
author_facet	Huq, Syed Fahmidul
author_sort	Huq, Syed Fahmidul
title	Cantilever-based piezoelectric energy harvester with improved frequency range
title_short	Cantilever-based piezoelectric energy harvester with improved frequency range
title_full	Cantilever-based piezoelectric energy harvester with improved frequency range
title_fullStr	Cantilever-based piezoelectric energy harvester with improved frequency range
title_full_unstemmed	Cantilever-based piezoelectric energy harvester with improved frequency range
title_sort	cantilever-based piezoelectric energy harvester with improved frequency range
granting_institution	Multimedia University
granting_department	Faculty of Engineering and Technology (FET)
publishDate	2024
_version_	1811768019681017856

Cantilever-based piezoelectric energy harvester with improved frequency range

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