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Scaling effects for piezoelectric energy harvesters

Scaling effects for piezoelectric energy harvesters
Scaling effects for piezoelectric energy harvesters
This paper presents a fundamental investigation into scaling effects for the mechanical properties and electrical output power of piezoelectric vibration energy harvesters. The mechanical properties investigated in this paper include resonant frequency of the harvester and its frequency tunability, which is essential for the harvester to operate efficiently under broadband excitations. Electrical output power studied includes cases when the harvester is excited under both constant vibration acceleration and constant vibration amplitude. The energy harvester analysed in this paper is based on a cantilever structure, which is typical of most vibration energy harvesters. Both detailed mathematical derivation and simulation are presented. Furthermore, various piezoelectric materials used in MEMS and non-MEMS harvesters are also considered in the scaling analysis
95170
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d

Zhu, Dibin and Beeby, Steve (2015) Scaling effects for piezoelectric energy harvesters. At SPIE Microtechnologies SPIE Microtechnologies, Spain. 04 - 07 May 2015. p. 95170. (In Press)

Record type: Conference or Workshop Item (Other)

Abstract

This paper presents a fundamental investigation into scaling effects for the mechanical properties and electrical output power of piezoelectric vibration energy harvesters. The mechanical properties investigated in this paper include resonant frequency of the harvester and its frequency tunability, which is essential for the harvester to operate efficiently under broadband excitations. Electrical output power studied includes cases when the harvester is excited under both constant vibration acceleration and constant vibration amplitude. The energy harvester analysed in this paper is based on a cantilever structure, which is typical of most vibration energy harvesters. Both detailed mathematical derivation and simulation are presented. Furthermore, various piezoelectric materials used in MEMS and non-MEMS harvesters are also considered in the scaling analysis

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Accepted/In Press date: 7 January 2015
Venue - Dates: SPIE Microtechnologies, Spain, 2015-05-04 - 2015-05-07
Organisations: EEE

Identifiers

Local EPrints ID: 377505
URI: https://eprints.soton.ac.uk/id/eprint/377505
PURE UUID: 2cfb61b9-c477-4476-99a0-fd912417a41d
ORCID for Steve Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 19 Jun 2015 14:35
Last modified: 06 Jun 2018 13:07

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