A 3D printed electromagnetic nonlinear vibration energy harvester

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dc.contributor.author Constantinou, Peter
dc.contributor.author Roy, Saibal
dc.date.accessioned 2016-10-28T12:12:34Z
dc.date.available 2016-10-28T12:12:34Z
dc.date.issued 2016-08-24
dc.identifier.citation CONSTANTINOU, P. and ROY, S. (2016) ‘A 3D printed electromagnetic nonlinear vibration energy harvester’, Smart Materials and Structures, 25(9), 095053 (14pp). doi:10.1088/0964-1726/25/9/095053 en
dc.identifier.volume 25 en
dc.identifier.issued 9 en
dc.identifier.startpage 1 en
dc.identifier.endpage 14 en
dc.identifier.issn 0964-1726
dc.identifier.uri http://hdl.handle.net/10468/3225
dc.identifier.doi 10.1088/0964-1726/25/9/095053
dc.description.abstract A 3D printed electromagnetic vibration energy harvester is presented. The motion of the device is in-plane with the excitation vibrations, and this is enabled through the exploitation of a leaf isosceles trapezoidal flexural pivot topology. This topology is ideally suited for systems requiring restricted out-of-plane motion and benefits from being fabricated monolithically. This is achieved by 3D printing the topology with materials having a low flexural modulus. The presented system has a nonlinear softening spring response, as a result of designed magnetic force interactions. A discussion of fatigue performance is presented and it is suggested that whilst fabricating, the raster of the suspension element is printed perpendicular to the flexural direction and that the experienced stress is as low as possible during operation, to ensure longevity. A demonstrated power of ~25 μW at 0.1 g is achieved and 2.9 mW is demonstrated at 1 g. The corresponding bandwidths reach up-to 4.5 Hz. The system's corresponding power density of ~0.48 mW cm−3 and normalised power integral density of 11.9 kg m−3 (at 1 g) are comparable to other in-plane systems found in the literature. en
dc.description.sponsorship Science Foundation Ireland (Grant No. SFI-11/PI/1201) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher IOP Publishing Ltd en
dc.rights © 2016, IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in Smart Materials and Structures. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://stacks.iop.org/0964-1726/25/i=9/a=095053 en
dc.subject Vibration energy harvesting en
dc.subject Nonlinear en
dc.subject 3D printing en
dc.subject Electromagnetic en
dc.subject Leaf isosceles trapezoidal flexural pivot en
dc.title A 3D printed electromagnetic nonlinear vibration energy harvester en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Saibal Roy, Tyndall Microsystems, University College Cork, Cork, Ireland. +353-21-490-3000 Email: saibal.roy@tyndall.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2017-08-24
dc.description.version Accepted Version en
dc.internal.rssid 372342061
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Smart Materials and Structures en
dc.internal.IRISemailaddress saibal.roy@tyndall.ie
dc.identifier.articleid 095053

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