Show simple item record

dc.contributor.authorNezami, Saman
dc.contributor.authorJung, Hyun Jun
dc.contributor.authorLee, Soobum
dc.date.accessioned2019-05-06T13:55:15Z
dc.date.available2019-05-06T13:55:15Z
dc.date.issued2019-04-03
dc.description.abstractThis paper presents mathematical modelling of an energy harvester that converts slow mechanical rotation into piezoelectric vibration using a small disk and a pair of magnets, for a large scale machinery monitoring application such as wind turbine blades. The harvester consists of a piezoelectric cantilevered beam, a gravity-induced disk, and magnets attached to both the beam and the disk. The energy method is used to derive the three coupled equations that describe: the motion of the disk; the vibration of the beam; and the harvester voltage output. The equations are solved using ODE45 in MATLAB software and verified by the corresponding experimental study. The result shows varied energy harvesting performance by blade rotational speed. At low blade speed, the harvester generates power by regularized magnetic excitation per blade revolution. At high blade speed, however, the disk behavior becomes chaotic to increase excitation force and power generation. The results show that the model can quantify power as a function of blade speed, and the proposed harvester can generate a considerable amount of power for self-sustainable sensing and monitoring of wind turbine blades.en_US
dc.description.sponsorshipThis work is supported by TEDCO Maryland Innovation Initiative (MII) grant (2018).en_US
dc.description.urihttps://iopscience.iop.org/article/10.1088/1361-665X/ab1598/metaen_US
dc.format.extent12 pagesen_US
dc.genrejournal articles postprintsen_US
dc.identifierdoi:10.13016/m2hthn-2zbu
dc.identifier.citationSaman Nezami, Hyun Jun Jung and Soobum Lee, Design of a disk-swing driven piezoelectric energy harvester for slow rotary system application, Smart Materials and Structures, 2019, https://doi.org/10.1088/1361-665X/ab1598en_US
dc.identifier.urihttps://doi.org/10.1088/1361-665X/ab1598
dc.identifier.urihttp://hdl.handle.net/11603/13654
dc.language.isoen_USen_US
dc.publisherIOP Publishing Ltden_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Mechanical Engineering Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsAccess to this item will begin on April 3, 2020*
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/*
dc.subjectenergy harvestingen_US
dc.subjectlow-speed rotationen_US
dc.subjectmagnetic excitationen_US
dc.subjectfrequency up-conversionen_US
dc.titleDesign of a disk-swing driven piezoelectric energy harvester for slow rotary system applicationen_US
dc.typeTexten_US


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
Except where otherwise noted, this item's license is described as This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.