Factors Affecting the Behaviour of Piezoelectric Ceramic Membrane of a System

Zaid Inam Ghafel; Ekhlas  E. Kader

doi:10.24237/djes.2022.15209

Authors

Zaid Inam Ghafel
eng_grad_mech007@uodiyala.edu.iq
Department of Mechanical Engineering, University of Diyala, Diyala, Iraq
Ekhlas E. Kader Department of Mechanical Engineering, University of Diyala, Diyala, Iraq

Keywords:

Energy Harvesting,, Piezoelectric,, Vibration,, Optimization factors,

Abstract

Energy harvesting is a top research topic right now, as the entire world seeks green energy as an alternative source. The power (voltage) extracted from the piezoelectric system was optimized. Several factors influence the creation of electric energy when a load is applied to the sensors, either directly (strain) or via ambient vibration. These variables include the kind of Piezoelectric elements, the frequency of applied stress, the distance from the rotating axis, stiffness, and inserting a chamber beneath the piezoelectric elements .The most affected factor was increasing the distance from the rotating axis since the maximum voltage was 7.02 volt at 106 r/m and the distance is 25 mm. when connecting Piezoelectric elements with cavities below it harvesting a voltage of Vmax equal 26.3 volt at 106 r/m and distance of 25mm. Increasing the stiffness of spring from 360.5 N/m to 522.4 N/m results in increased energy harvesting. Increasing the Piezoelectric elements diameter from 35 mm to 35mm with cavity under it has a significant effect on the gathered voltage.

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