Abstract
In this paper, a simple model for circular piezoelectric energy harvester is theoretically and experimentally studied. For this reason, vibration behavior of a circular piezoelectric device, which simply called piezoelectric buzzer, is modeled as a changeable cross-section beam. A new quartic polynomial function is introduced to precisely describe the vibratory behavior of the circular piezoelectric device. The obtained electromechanical equations of motion are experimentally validated. As a case study, application of the presented circular piezoelectric device is studied when it is used in a galloping-based energy harvester. Finally, the optimized parameters of the presented energy harvester and vibration suppressor are presented and its efficiency is studied.
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Recommended by Associate Editor Jin Woo Lee
Ahmad Saadatinasab was born in 1994. He received his B.Sc. (2016) degree in Mechanical Engineering from Ferdowsi University of Mashhad, Iran.
Aref Afsharfard received his B.Sc. (2008), M.Sc. (2010) and Ph.D. (2013) degrees in Mechanical Engineering from Ferdowsi University of Mashhad, Iran. Currently, he is Assistant Professor of mechanical engineering at Ferdowsi University of Mashhad.
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Saadatinasab, A., Afsharfard, A. Novel modeling of circular piezoelectric devices as vibration suppresser and energy harvester. J Mech Sci Technol 33, 2029–2035 (2019). https://doi.org/10.1007/s12206-019-0405-z
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DOI: https://doi.org/10.1007/s12206-019-0405-z