A Novel Design and Performance Results of An Electrically Tunable Piezoelectric Vibration Energy Harvester (TPVEH)

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dc.contributor.authorRaghavan, Sreekumari
dc.contributor.authorGupta, Rishi
dc.date.accessioned2020-06-02T22:42:56Z
dc.date.available2020-06-02T22:42:56Z
dc.date.copyright2020en_US
dc.date.issued2020
dc.description.abstractThe need for energy harvesters for various applications, including structural health monitoring (SHM) in remote and inaccessible areas, is well established. Energy harvesters can utilize the ambient vibration of the body on which they are mounted to generate energy, thus eliminating the need for an external source of power. One such type of harvester is designed using piezoelectric materials and using a cantilever type set-up. However, the challenge associated with cantilever-based Piezoelectric Vibration Energy Harvesters (PVEH) is that its output power reduces when the ambient vibration frequency deviates from the resonant frequency of the harvester. This calls for a mechanism to tune its resonant frequency to match with the ambient frequency. This article presents an innovative design of an electrically tunable PVEH. The PVEH is integrated with an Ionic Polymer Metal Composite (IPMC) as an actuator that loads the cantilever beam, changing the stiffness of the beam. IPMC utilizes low power, and the authors demonstrate in this paper that a net gain of power can be achieved by this novel design. For the configuration used, it is experimentally proven that a frequency shift from 5.9 Hz to 8 Hz is achieved with three actuation values. Typical power output from the harvester is 52.03 µW when the power spent on actuation is only 0.765 µW. On-going modeling of this system using simulation software is expected to lead to further optimization and prototyping of design.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe authors also acknowledge the funding agency NSERC (Natural Sciences and Engineering Research Council) of Canada for providing the necessary financial support for this project.en_US
dc.identifier.citationRaghavan, S., & Gupta, R. (2020). A Novel Design and Performance Results of An Electrically Tunable Piezoelectric Vibration Energy Harvester (TPVEH). Journal of Composites Science, 4(39), 1-13. https://doi.org/10.3390/jcs4020039.en_US
dc.identifier.issnhttps://doi.org/10.3390/jcs4020039
dc.identifier.urihttp://hdl.handle.net/1828/11782
dc.language.isoenen_US
dc.publisherJournal of Composites Scienceen_US
dc.subjectenergy harvestingen_US
dc.subjectvibrationen_US
dc.subjectpiezoelectric materialen_US
dc.subjectionic polymer-metal compositeen_US
dc.subjectbandwidthen_US
dc.titleA Novel Design and Performance Results of An Electrically Tunable Piezoelectric Vibration Energy Harvester (TPVEH)en_US
dc.typeArticleen_US

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