Analytical Optimization of Piezoelectric Circular Diaphragm Generator

Abstract EN

This paper presents an analytical study of the piezoelectric circular diaphragm microgenerator using strain energy method.

Piezoelectrics are the intelligent materials that can be used as transducer to convert mechanical energy into electrical energy and vice versa.

The aim of this paper is to optimize produced electrical energy from mechanical pressure.

Therefore, the circular metal plate equipped with piezoelectric circular patch has been considered with simply and clamped supports.

A comprehensive modeling, parametrical study and the effect of the boundary conditions on the performance of the microgenerator have been investigated.

The system is under variable pressure from an oscillating pressure source.

Results are presented for PZT and PMN-PT piezoelectric materials with steel and aluminum substrates.

An optimal value for the radius and thickness of the piezoelectric layer with a special support condition has been obtained.