Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/79588
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dc.contributor.authorWu, Haoen
dc.contributor.authorTang, Lihuaen
dc.contributor.authorYang, Yaowenen
dc.contributor.authorSoh, Chee Kiongen
dc.date.accessioned2013-11-11T04:44:59Zen
dc.date.accessioned2019-12-06T13:28:46Z-
dc.date.available2013-11-11T04:44:59Zen
dc.date.available2019-12-06T13:28:46Z-
dc.date.copyright2012en
dc.date.issued2012en
dc.identifier.citationWu, H., Tang, L., Yang, Y., & Soh, C. K. (2013). A novel two-degrees-of-freedom piezoelectric energy harvester. Journal of Intelligent Material Systems and Structures, 24(3), 357-368.en
dc.identifier.urihttps://hdl.handle.net/10356/79588-
dc.description.abstractEnergy harvesting from ambient vibrations using piezoelectric effect is a promising alternative solution for powering small electronics such as wireless sensors. A conventional piezoelectric energy harvester usually consists of a cantilevered beam with a proof mass at its free end. For such a device, the second resonance of the piezoelectric energy harvester is usually ignored because of its high frequency as well as low response level compared to the first resonance. Hence, only the first mode has been frequently exploited for energy harvesting in the reported literature. In this article, a novel compact piezoelectric energy harvester using two vibration modes has been developed. The harvester comprises one main cantilever beam and an inner secondary cantilever beam, each of which is bonded with piezoelectric transducers. By varying the proof masses, the first two resonant frequencies of the harvester can be tuned close enough to achieve useful wide bandwidth. Meanwhile, this compact design efficiently utilizes the cantilever beam by generating significant power output from both the main and secondary beams. An experiment and simulation were carried out to validate the design concept. The results show that the proposed novel piezoelectric energy harvester is more adaptive and functional in practical vibrational circumstances.en
dc.language.isoenen
dc.relation.ispartofseriesJournal of intelligent material systems and structuresen
dc.rights© 2012 The Authors. This is the author created version of a work that has been peer reviewed and accepted for publication in Journal of Intelligent Material Systems and Structures, published by SAGE Publications on behalf of The Authors. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1177/1045389X12457254].en
dc.titleA novel two-degrees-of-freedom piezoelectric energy harvesteren
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
dc.identifier.doi10.1177/1045389X12457254en
dc.description.versionAccepted Versionen
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