Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements

This paper describes optimum values of an electrical circuit for energy harvesting using a beam and piezoelectric elements. Energy harvesting techniques recover energy from the environment. We target the energy harvesting methods that extract energy from mechanical vibration systems in this research...

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Autores principales:	Keisuke YAMADA, Junichi KURATA, Hideo UTSUNO, Yoshihiro MURAKAMI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2017
Materias:	energy harvesting piezoelectric element beam bending vibration random excitation impedance matching Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/1eacbafe6101432bafe593e1b08aa2f5
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spelling	oai:doaj.org-article:1eacbafe6101432bafe593e1b08aa2f52021-11-26T07:06:29ZOptimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements2187-974510.1299/mej.17-00023https://doaj.org/article/1eacbafe6101432bafe593e1b08aa2f52017-05-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/4/4/4_17-00023/_pdf/-char/enhttps://doaj.org/toc/2187-9745This paper describes optimum values of an electrical circuit for energy harvesting using a beam and piezoelectric elements. Energy harvesting techniques recover energy from the environment. We target the energy harvesting methods that extract energy from mechanical vibration systems in this research. Vibration energy is usually extracted through electrical circuits using electromechanical transducers such as DC motors and piezoelectric elements. In order to extract energy effectively, these electrical circuits and additional vibration systems must be optimally tuned. The optimum values of an electrical circuit and additional vibration system can be derived based on impedance matching when a vibration source includes only a single excitation frequency; however, in certain cases, vibration sources include several excitation frequencies. The optimum values derived based on impedance matching are not optimum when the vibration source includes several excitation frequencies. Therefore, we additionally investigated the case of random excitation as a representative of such cases in this research. The optimum values for the case of random excitation are also effective for the cases of free vibration including impulse excitation. The governing equations were formulated using equivalent mechanical models in this research. The combination of a beam and a piezoelectric element was used as the piezoelectric energy harvester because the thorough formulation of the governing equations for this configuration was not found in the research literature. The optimum values of the electrical circuit and additional vibration system were derived using the governing equations. The effectiveness of the optimum values was verified through numerical calculations.Keisuke YAMADAJunichi KURATAHideo UTSUNOYoshihiro MURAKAMIThe Japan Society of Mechanical Engineersarticleenergy harvestingpiezoelectric elementbeambending vibrationrandom excitationimpedance matchingMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 4, Iss 4, Pp 17-00023-17-00023 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	energy harvesting piezoelectric element beam bending vibration random excitation impedance matching Mechanical engineering and machinery TJ1-1570
spellingShingle	energy harvesting piezoelectric element beam bending vibration random excitation impedance matching Mechanical engineering and machinery TJ1-1570 Keisuke YAMADA Junichi KURATA Hideo UTSUNO Yoshihiro MURAKAMI Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
description	This paper describes optimum values of an electrical circuit for energy harvesting using a beam and piezoelectric elements. Energy harvesting techniques recover energy from the environment. We target the energy harvesting methods that extract energy from mechanical vibration systems in this research. Vibration energy is usually extracted through electrical circuits using electromechanical transducers such as DC motors and piezoelectric elements. In order to extract energy effectively, these electrical circuits and additional vibration systems must be optimally tuned. The optimum values of an electrical circuit and additional vibration system can be derived based on impedance matching when a vibration source includes only a single excitation frequency; however, in certain cases, vibration sources include several excitation frequencies. The optimum values derived based on impedance matching are not optimum when the vibration source includes several excitation frequencies. Therefore, we additionally investigated the case of random excitation as a representative of such cases in this research. The optimum values for the case of random excitation are also effective for the cases of free vibration including impulse excitation. The governing equations were formulated using equivalent mechanical models in this research. The combination of a beam and a piezoelectric element was used as the piezoelectric energy harvester because the thorough formulation of the governing equations for this configuration was not found in the research literature. The optimum values of the electrical circuit and additional vibration system were derived using the governing equations. The effectiveness of the optimum values was verified through numerical calculations.
format	article
author	Keisuke YAMADA Junichi KURATA Hideo UTSUNO Yoshihiro MURAKAMI
author_facet	Keisuke YAMADA Junichi KURATA Hideo UTSUNO Yoshihiro MURAKAMI
author_sort	Keisuke YAMADA
title	Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
title_short	Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
title_full	Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
title_fullStr	Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
title_full_unstemmed	Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
title_sort	optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements
publisher	The Japan Society of Mechanical Engineers
publishDate	2017
url	https://doaj.org/article/1eacbafe6101432bafe593e1b08aa2f5
work_keys_str_mv	AT keisukeyamada optimumvaluesofelectricalcircuitforenergyharvestingusingabeamandpiezoelectricelements AT junichikurata optimumvaluesofelectricalcircuitforenergyharvestingusingabeamandpiezoelectricelements AT hideoutsuno optimumvaluesofelectricalcircuitforenergyharvestingusingabeamandpiezoelectricelements AT yoshihiromurakami optimumvaluesofelectricalcircuitforenergyharvestingusingabeamandpiezoelectricelements
_version_	1718409704858714112

Optimum values of electrical circuit for energy harvesting using a beam and piezoelectric elements

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