Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation Center

Rotational energy harvesting technology has attracted more and more attention recently. This paper presents a piezoelectric rotational energy harvester that can be mounted with an offset distance from the rotation center. The piezoelectric energy harvester is designed to be dynamically excited by th...

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Main Authors: Jun Chen, Xiangfu Liu, Hengyang Wang, Sheng Wang, Mingjie Guan
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/3/388
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author Jun Chen
Xiangfu Liu
Hengyang Wang
Sheng Wang
Mingjie Guan
author_facet Jun Chen
Xiangfu Liu
Hengyang Wang
Sheng Wang
Mingjie Guan
author_sort Jun Chen
collection DOAJ
description Rotational energy harvesting technology has attracted more and more attention recently. This paper presents a piezoelectric rotational energy harvester that can be mounted with an offset distance from the rotation center. The piezoelectric energy harvester is designed to be dynamically excited by the force due to gravity, which causes the piezoelectric cantilever beams in the harvester to vibrate periodically as the harvester rotates. A novel design of the harvester structure with a hollow mass is proposed and analyzed in this paper. Experiments were performed to investigate the design and analysis. A power output of 106~2308 μW can be achieved at the rotating frequencies of 0.79~14 Hz with a piezoelectric cantilever beam in the prototyped energy harvester. Results showed that the prototyped harvester can be mounted on a rotating wheel hub and output sufficient power in a wide frequency range for wireless monitoring sensors.
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spelling doaj.art-83f9b87629d44c70b55149e46adbec1c2023-11-30T21:33:28ZengMDPI AGMicromachines2072-666X2022-02-0113338810.3390/mi13030388Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation CenterJun Chen0Xiangfu Liu1Hengyang Wang2Sheng Wang3Mingjie Guan4Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaRotational energy harvesting technology has attracted more and more attention recently. This paper presents a piezoelectric rotational energy harvester that can be mounted with an offset distance from the rotation center. The piezoelectric energy harvester is designed to be dynamically excited by the force due to gravity, which causes the piezoelectric cantilever beams in the harvester to vibrate periodically as the harvester rotates. A novel design of the harvester structure with a hollow mass is proposed and analyzed in this paper. Experiments were performed to investigate the design and analysis. A power output of 106~2308 μW can be achieved at the rotating frequencies of 0.79~14 Hz with a piezoelectric cantilever beam in the prototyped energy harvester. Results showed that the prototyped harvester can be mounted on a rotating wheel hub and output sufficient power in a wide frequency range for wireless monitoring sensors.https://www.mdpi.com/2072-666X/13/3/388piezoelectricenergy harvestingrotationaloffset distancecantilever beam
spellingShingle Jun Chen
Xiangfu Liu
Hengyang Wang
Sheng Wang
Mingjie Guan
Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation Center
Micromachines
piezoelectric
energy harvesting
rotational
offset distance
cantilever beam
title Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation Center
title_full Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation Center
title_fullStr Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation Center
title_full_unstemmed Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation Center
title_short Design and Experimental Investigation of a Rotational Piezoelectric Energy Harvester with an Offset Distance from the Rotation Center
title_sort design and experimental investigation of a rotational piezoelectric energy harvester with an offset distance from the rotation center
topic piezoelectric
energy harvesting
rotational
offset distance
cantilever beam
url https://www.mdpi.com/2072-666X/13/3/388
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