A Model for Doubly Clamped Piezoelectric Energy Harvesters With Segmented Electrodes

An analytical model for doubly clamped piezoelectric energy harvesters with segmented electrodes, considering the effect of strain nodes formation and charges cancellation issues, is presented. The single-mode power and voltage outputs of each of the lead zirconate titanate segments are obtained and are connected in series across a resistive load for the total outputs. The analytical solutions are found to closely agree with the Finite Element Method (FEM) simulation results obtained from COMSOL Multiphysics.