Cantilevers-on-membrane design for broadband MEMS piezoelectric vibration energy harvesting

Hdl Handle:
http://hdl.handle.net/10034/620187
Title:
Cantilevers-on-membrane design for broadband MEMS piezoelectric vibration energy harvesting
Authors:
Jia, Yu; Du, Sijun; Seshia, Ashwin A.
Abstract:
Most MEMS piezoelectric vibration energy harvesters involve either cantilever-based topologies, doubly-clamped beams or membrane structures. While these traditional designs offer simplicity, their frequency response for broadband excitation are typically inadequate. This paper presents a new integrated cantilever-on-membrane design that attempts to both optimise the strain distribution on a piezoelectric membrane resonator and improve the power responsiveness of the harvester for broadband excitation. While a classic membrane-based resonator has the potential to theoretically offer wider operational frequency bandwidth than its cantilever counterpart, the addition of a centred proof mass neutralises its otherwise high strain energy regions. The proposed topology addresses this issue by relocating the proof mass onto subsidiary cantilevers and integrates the merits of both the membrane and the cantilever designs. When experimentally subjected to a band-limited white noise excitation, up to approximately two folds of power enhancement was observed for the new membrane harvester compared to a classic plain membrane device.
Affiliation:
University of Chester; University of Cambridge
Citation:
Jia,Y., Du, S., & Seshia, A. A. (2015). Cantilevers-on-membrane design for broadband MEMS piezoelectric vibration energy harvesting. Journal of Physics: Conference Series, 660(1), 012030. DOI: 10.1088/1742-6596/660/1/012030
Publisher:
IOP Publishing
Journal:
Journal of Physics: Conference Series
Publication Date:
1-Dec-2015
URI:
http://hdl.handle.net/10034/620187
DOI:
10.1088/1742-6596/660/1/012030
Additional Links:
http://iopscience.iop.org/article/10.1088/1742-6596/660/1/012030/meta
Type:
Article
Language:
en
EISSN:
1742-6596
Appears in Collections:
Mechanical Engineering

Full metadata record

DC FieldValue Language
dc.contributor.authorJia, Yuen
dc.contributor.authorDu, Sijunen
dc.contributor.authorSeshia, Ashwin A.en
dc.date.accessioned2016-10-03T08:26:03Z-
dc.date.available2016-10-03T08:26:03Z-
dc.date.issued2015-12-01-
dc.identifier.citationJia,Y., Du, S., & Seshia, A. A. (2015). Cantilevers-on-membrane design for broadband MEMS piezoelectric vibration energy harvesting. Journal of Physics: Conference Series, 660(1), 012030. DOI: 10.1088/1742-6596/660/1/012030en
dc.identifier.doi10.1088/1742-6596/660/1/012030-
dc.identifier.urihttp://hdl.handle.net/10034/620187-
dc.description.abstractMost MEMS piezoelectric vibration energy harvesters involve either cantilever-based topologies, doubly-clamped beams or membrane structures. While these traditional designs offer simplicity, their frequency response for broadband excitation are typically inadequate. This paper presents a new integrated cantilever-on-membrane design that attempts to both optimise the strain distribution on a piezoelectric membrane resonator and improve the power responsiveness of the harvester for broadband excitation. While a classic membrane-based resonator has the potential to theoretically offer wider operational frequency bandwidth than its cantilever counterpart, the addition of a centred proof mass neutralises its otherwise high strain energy regions. The proposed topology addresses this issue by relocating the proof mass onto subsidiary cantilevers and integrates the merits of both the membrane and the cantilever designs. When experimentally subjected to a band-limited white noise excitation, up to approximately two folds of power enhancement was observed for the new membrane harvester compared to a classic plain membrane device.en
dc.language.isoenen
dc.publisherIOP Publishingen
dc.relation.urlhttp://iopscience.iop.org/article/10.1088/1742-6596/660/1/012030/metaen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectEnergy harvestingen
dc.subjectMEMSen
dc.subjectPiezoelectric transduceren
dc.titleCantilevers-on-membrane design for broadband MEMS piezoelectric vibration energy harvestingen
dc.typeArticleen
dc.identifier.eissn1742-6596-
dc.contributor.departmentUniversity of Chester; University of Cambridgeen
dc.identifier.journalJournal of Physics: Conference Seriesen
dc.date.accepted2015-12-01-
or.grant.openaccessYesen
rioxxterms.funderEPSRCen
rioxxterms.identifier.projectEP/L010917/1en
rioxxterms.versionAMen
rioxxterms.licenseref.startdate2015-12-01-
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