Analysis of Piezoelectric Energy Harvesting Systems with Non-linear Circuits Using the Harmonic Balance Method

摘要: There is substantial promise in the use of piezoelectric energy harvesting systems to power electronics and devices through conversion ambient vibrations into electrical energy. Accurately predicting capability these paramount importance as structure associated circuit must be ‘tuned’ concert signature vibrations. Here, we develop a numerical simulation methodology for that allows high-fidelity finite element models harvester electromechanics well realistic non-linear circuits models. Our approach synthesizes conventional harmonic analysis balance accounts efficiently behavior, bypassing need computationally expensive time marching schemes. The proposed solves, via an iterative residual reduction scheme, coupled output structural dynamics piezoe...