Reliability of Tapered Bimorph Piezoelectric Energy Harvesters: an Experimental Study

J.A. Brans; T.W.A. Blad; N. Tolou

doi:10.1109/ISIE45552.2021.9576364

Reliability of Tapered Bimorph Piezoelectric Energy Harvesters: an Experimental Study

J.A. Brans, T.W.A. Blad, N. Tolou

Mechatronic Systems Design

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

Cantilever piezoelectric energy harvesting from ambient vibrations is a viable solution for powering wireless sensors and low-power electronics. However, the greatest issue preventing these systems from being widely used is their poor reliability. With the aim to maximise their power output, the devices are often operated close the fracture strength, which results in cracks in the brittle piezoceramic layer. Tapered cantilevers are suggested to improve the mechanical reliability. A relative comparison is made between tapered piezoelectric cantilevers and conventional rectangular cantilevers in terms of reliability and power output. Tensional strains causing fractures show a serious reduction of power output and eigenfrequency. Experiments show that tapered cantilevers have a higher power output per unit area.

Original language	English
Title of host publication	Proceedings of 2021 IEEE 30th International Symposium on Industrial Electronics, ISIE 2021
Publisher	IEEE
Number of pages	4
ISBN (Electronic)	978-1-7281-9023-5
ISBN (Print)	978-1-7281-9024-2
DOIs	https://doi.org/10.1109/ISIE45552.2021.9576364
Publication status	Published - 2021
Event	2021 IEEE 30th International Symposium on Industrial Electronics (ISIE) - Online at Kyoto, Japan Duration: 20 Jun 2021 → 23 Jun 2021 Conference number: 30th

Conference

Conference	2021 IEEE 30th International Symposium on Industrial Electronics (ISIE)
Abbreviated title	ISIE 2021
Country/Territory	Japan
City	Online at Kyoto
Period	20/06/21 → 23/06/21

Keywords

Mechanical reliability
PZT
vibration energy harvester
tapered cantilever

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10.1109/ISIE45552.2021.9576364

Cite this

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title = "Reliability of Tapered Bimorph Piezoelectric Energy Harvesters: an Experimental Study",

abstract = "Cantilever piezoelectric energy harvesting from ambient vibrations is a viable solution for powering wireless sensors and low-power electronics. However, the greatest issue preventing these systems from being widely used is their poor reliability. With the aim to maximise their power output, the devices are often operated close the fracture strength, which results in cracks in the brittle piezoceramic layer. Tapered cantilevers are suggested to improve the mechanical reliability. A relative comparison is made between tapered piezoelectric cantilevers and conventional rectangular cantilevers in terms of reliability and power output. Tensional strains causing fractures show a serious reduction of power output and eigenfrequency. Experiments show that tapered cantilevers have a higher power output per unit area.",

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Brans, JA, Blad, TWA & Tolou, N 2021, Reliability of Tapered Bimorph Piezoelectric Energy Harvesters: an Experimental Study. in Proceedings of 2021 IEEE 30th International Symposium on Industrial Electronics, ISIE 2021., 9576364, IEEE , 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE), Online at Kyoto, Japan, 20/06/21. https://doi.org/10.1109/ISIE45552.2021.9576364

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T1 - Reliability of Tapered Bimorph Piezoelectric Energy Harvesters

T2 - 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE)

AU - Brans, J.A.

AU - Blad, T.W.A.

AU - Tolou, N.

N1 - Conference code: 30th

PY - 2021

Y1 - 2021

N2 - Cantilever piezoelectric energy harvesting from ambient vibrations is a viable solution for powering wireless sensors and low-power electronics. However, the greatest issue preventing these systems from being widely used is their poor reliability. With the aim to maximise their power output, the devices are often operated close the fracture strength, which results in cracks in the brittle piezoceramic layer. Tapered cantilevers are suggested to improve the mechanical reliability. A relative comparison is made between tapered piezoelectric cantilevers and conventional rectangular cantilevers in terms of reliability and power output. Tensional strains causing fractures show a serious reduction of power output and eigenfrequency. Experiments show that tapered cantilevers have a higher power output per unit area.

AB - Cantilever piezoelectric energy harvesting from ambient vibrations is a viable solution for powering wireless sensors and low-power electronics. However, the greatest issue preventing these systems from being widely used is their poor reliability. With the aim to maximise their power output, the devices are often operated close the fracture strength, which results in cracks in the brittle piezoceramic layer. Tapered cantilevers are suggested to improve the mechanical reliability. A relative comparison is made between tapered piezoelectric cantilevers and conventional rectangular cantilevers in terms of reliability and power output. Tensional strains causing fractures show a serious reduction of power output and eigenfrequency. Experiments show that tapered cantilevers have a higher power output per unit area.

KW - Mechanical reliability

KW - PZT

KW - vibration energy harvester

KW - tapered cantilever

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U2 - 10.1109/ISIE45552.2021.9576364

DO - 10.1109/ISIE45552.2021.9576364

M3 - Conference contribution

SN - 978-1-7281-9024-2

BT - Proceedings of 2021 IEEE 30th International Symposium on Industrial Electronics, ISIE 2021

PB - IEEE

Y2 - 20 June 2021 through 23 June 2021

ER -

Reliability of Tapered Bimorph Piezoelectric Energy Harvesters: an Experimental Study

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Keywords

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