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双向压电能量收集器

Bidirectional Piezoelectric Energy Harvester.

作者信息

Čeponis Andrius, Mažeika Dalius, Kilikevičius Artūras

机构信息

Department of Engineering Graphics, Faculty of Fundament Sciences, Vilnius Gediminas Technical University, Sauletekio avn., 11, LT-10223 Vilnius, Lithuania.

Department of Information Systems, Faculty of Fundament Sciences, Vilnius Gediminas Technical University, Sauletekio avn., 11, LT-10223 Vilnius, Lithuania.

出版信息

Sensors (Basel). 2019 Sep 6;19(18):3845. doi: 10.3390/s19183845.

DOI:10.3390/s19183845
PMID:31489888
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6766932/
Abstract

This paper represents a numerical and experimental investigation of the bidirectional piezoelectric energy harvester. The harvester can harvest energy from the vibrating base in two perpendicular directions. The introduced harvester consists of two cantilevers that are connected by a particular angle and two seismic masses. The first mass is placed at a free end of the harvester while the second mass is fixed at the joining point of the cantilevers. The piezoelectric energy harvester employs the first and the second out of plane bending modes. The numerical investigation was carried out to obtain optimal geometrical parameters and to calculate the mechanical and electrical characteristics of the harvester. The energy harvester can provide stable output power during harmonic and impact-based excitation in two directions. The results of the investigations showed that energy harvester provides a maximum output power of 16.85 µW and 15.9 4 µW when the base has harmonic vibrations in and directions, respectively. Maximum output of 4.059 nW/N and 3.1 nW/N in and directions were obtained in case of impact based excitation.

摘要

本文介绍了一种双向压电能量采集器的数值和实验研究。该采集器能够从振动基座的两个垂直方向采集能量。所介绍的采集器由两个以特定角度相连的悬臂梁和两个质量块组成。第一个质量块放置在采集器的自由端，而第二个质量块固定在悬臂梁的连接点处。该压电能量采集器采用第一和第二阶面外弯曲模式。进行数值研究以获得最佳几何参数，并计算采集器的机械和电气特性。该能量采集器在两个方向的谐波激励和基于冲击的激励过程中都能提供稳定的输出功率。研究结果表明，当基座在x和y方向发生谐波振动时，能量采集器分别提供16.85 μW和15.94 μW的最大输出功率。在基于冲击的激励情况下，在x和y方向分别获得了4.059 nW/N和3.1 nW/N的最大输出。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/0f6a47f729a5/sensors-19-03845-g021.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/1c1decc09028/sensors-19-03845-g006.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/d9ca92478e19/sensors-19-03845-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/ccb45fa01db9/sensors-19-03845-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/97461fbd2f0b/sensors-19-03845-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/3dfb9151b406/sensors-19-03845-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/af280654b78c/sensors-19-03845-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/b764b2c8d997/sensors-19-03845-g017.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/464a033becf3/sensors-19-03845-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/d9ca92478e19/sensors-19-03845-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/ccb45fa01db9/sensors-19-03845-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/a8ecf42edbac/sensors-19-03845-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/97461fbd2f0b/sensors-19-03845-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/3dfb9151b406/sensors-19-03845-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/af280654b78c/sensors-19-03845-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/b5315b5ea364/sensors-19-03845-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/76ca8c88a873/sensors-19-03845-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/655320ea0d0d/sensors-19-03845-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/b764b2c8d997/sensors-19-03845-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/23c6dd555390/sensors-19-03845-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/ea78529a6f98/sensors-19-03845-g019.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/5b2691bd2e12/sensors-19-03845-g020.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f52/6766932/0f6a47f729a5/sensors-19-03845-g021.jpg

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