  This study presents the simulation, experimentation, and design
considerations of a Poly(vinylidene fluoride co-trifluoroethylene)/
Polyethylene Terephthalate (PVDF-TrFe / PET), laser-cut, flexible piezoelectric
energy harvester. It is possible to obtain energy from the environment around
autonomous sensor systems, which can then be used to power various equipment.
This article investigates the actuation means of ambient vibration, which is a
good candidate for using piezoelectric energy harvester (PEH) devices. The
output voltage characteristics were analyzed in a wind test apparatus. Finite
element modeling (FEM) was done for von Mises stress and modal analysis.
Resonance frequency sweeps, quality factors, and damping ratios of the circular
plate were given numerically. For a PVDF-TrFe piezoelectric layer thickness of
18 $\mu$m and 1.5 mm radius, a damping ratio of 0.117 and a quality factor of
4.284 was calculated. $V_{max}$ was calculated as 984 mV from the wind setup
and compared with the FEM outputs.
