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Functionally Graded Piezoelectric Energy Harvester: A Numerical Study

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dc.contributor.authorKumar A.en_US
dc.contributor.authorAnsari M.N.M.en_US
dc.contributor.authorIbrahim S.M.en_US
dc.contributor.authorThomas P.en_US
dc.contributor.authorVaish R.en_US
dc.contributor.authorid56401412300en_US
dc.contributor.authorid55489853600en_US
dc.contributor.authorid57214757956en_US
dc.contributor.authorid57075510300en_US
dc.contributor.authorid20735390600en_US
dc.date.accessioned2023-05-29T09:36:46Z
dc.date.available2023-05-29T09:36:46Z
dc.date.issued2022
dc.description.abstractThe performance of linear energy harvesters is primarily confined to a very narrow operating frequency bandwidth around its natural frequency. Even a slight deviation of the excitation frequency from the fundamental frequency of the system tremendously reduces the harvester�s performance. In order to minimize this shortcoming, the presented study considers the piezoelectric energy harvester with magnets introducing non-linearity in the system. The simple harmonic balance method is used to solve the non-linearity and for computing the voltage output and power in the frequency domain. In addition, the study also incorporates the functionally graded piezoelectric materials because of their superior properties. The distance between magnets (d0) has been varied from 0.4 mm to 10 mm along with grading index (n) in the range of 0 to ?. Finally, voltage and power across the resistance were computed. The effective harvesting frequency range for d0 = 0.4 mm and n = 1 is observed in the range of 20 Hz to 85 Hz, while it was only between 35 Hz and 65 Hz for d0 = 10 mm, yielding a 216% increase in the frequency bandwidth. Under different case studies, the peak output power varied from 2 mW (d0 = 0.4 mm and n = ?) to 6 mW (d0 = 10 mm and n = 0). � 2022 by the authors.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo2595
dc.identifier.doi10.3390/electronics11162595
dc.identifier.issue16
dc.identifier.scopus2-s2.0-85137387239
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85137387239&doi=10.3390%2felectronics11162595&partnerID=40&md5=861687fc9f62913fa2842e9aac10b93d
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26796
dc.identifier.volume11
dc.publisherMDPIen_US
dc.relation.ispartofAll Open Access, Gold
dc.sourceScopus
dc.sourcetitleElectronics (Switzerland)
dc.titleFunctionally Graded Piezoelectric Energy Harvester: A Numerical Studyen_US
dc.typeArticleen_US
dspace.entity.typePublication
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