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
21 May 2015
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.
SPIE Microtechnologies, Barcelona, Spain.
04 - 07 May 2015.
.
(doi:10.1117/12.2178877).
Record type:
Conference or Workshop Item
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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
e-pub ahead of print date: 21 May 2015
Published date: 21 May 2015
Venue - Dates:
SPIE Microtechnologies, Barcelona, Spain, 2015-05-04 - 2015-05-07
Organisations:
EEE
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Local EPrints ID: 377505
URI: http://eprints.soton.ac.uk/id/eprint/377505
PURE UUID: 2cfb61b9-c477-4476-99a0-fd912417a41d
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Date deposited: 19 Jun 2015 14:35
Last modified: 15 Mar 2024 02:46
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Author:
Dibin Zhu
Author:
Steve Beeby
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