Material selection and parametric modelling of laminated composite beam for piezoelectric energy harvesting
by Subhransu Kumar Panda; J. Srinivas
International Journal of Materials and Product Technology (IJMPT), Vol. 62, No. 1/2/3, 2021

Abstract: Presently, energy harvesting from natural sources is one of the hot-spot areas for actuating the micropower devices used in electronics and instrumentation. The performance and potential of energy harvesting systems depend on the geometry of the structure and properties of the materials employed. The present work focuses on the effect of piezoelectric materials on the structural and electrical characteristics. A three-dimensional finite element analysis is implemented to investigate the power output from a vibrating cantilever beam with three different types of piezoelectric materials namely lead zirconate titanate (PZT-5H), polyvinylidene fluoride (PVDF) and zinc oxide (ZnO). It was observed that the power output strongly depends on the material properties and geometric parameters of piezoelectric patches mounted on the cantilever substrate. To this end, the area and thickness ratio of the laminated beams are varied to understand its effect on the natural frequencies and the electric power output. The output energy increases with an increase in the area of the piezoelectric patch. A similar trend is observed in the case of the thickness ratio. PZT-5H has shown more energy harvesting potential for the same geometrical configurations.

Online publication date: Mon, 24-May-2021

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