DIRECT AND INVERSE PIEZOELECTRIC EFFECT OF PZT-5H DISC BENDERS

In this paper presented a direct and inverse piezoelectric calculations of lead zirconate titanate(PZT) disc at different resonance frequencies such as frequency constant, capacitance, static displacement and static voltages under variable forces. These are the basics for analytical studies and the design of a energy harvesters by using ambient vibrations. The static displacement is very small for PZT-5H when the voltage is applied. It comes under inverse piezoelectric effect. If the applied voltage is 10 V for the disc of 32 mm diameter and 2 mm thickness the change in displacement is 3.47 x 10-6 mm. And also concluded with the effect of voltage constant(g33) in generating the static voltage which plays very important key role. Simulation work is done in COMSOL5.0.