Coupled Field Analysis of Piezoelectric Cantilever Beam by using Finite Element Method

Vibration-based energy harvesting for low-power electricity generation has been heavily researched over the last decade. The motivation in this research field is due to the reduced power requirement of small electronic components, such as the wireless sensor networks used in passive and active monitoring applications. It enables autonomous wireless electronic systems by recovering the waste vibrational energy available in their environment. Vibration-based energy harvester generates the most energy when the generator is excited at its resonance frequency. A Simple model of Aluminium cantilever beam with unimorph piezoelectric patch of PZT-5H is at the end. In this paper the ability of PZT-5H to generate voltage at different frequency range is explained. The work is done in ANSYS and it is validated by experimental analysis. The solid model is design and analyzed using finite element software.