A piezoelectric energy harvester (PEH) consists of an electromechanical structure and an electric circuit that influence each other. An implicit coupling between a finite element simulation of the electromechanical structure and an electronic circuit simulator, recently introduced by the authors, is applied to the analysis of a PEH. The PEH is equipped with a self-powered electric circuit and the nonlinear and non-ideal behavior of its transistors and diodes and the nonlinear material behavior of the electromechanical structure are considered in the simulations. Harmonic and shock-like base excitations are applied and the behavior of the PEH is carefully analyzed.

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Andreas Hegendörfer and Julia Mergheim, "Analysis of a mechanically and electrically nonlinear and non-ideal piezoelectric energy harvester with a coupled finite element-electronic circuit simulator method," Proc. SPIE PC12483, Active and Passive Smart Structures and Integrated Systems XVII, PC124830H (Presented at SPIE Smart Structures + Nondestructive Evaluation: March 15, 2023; Published: 28 April 2023); https://doi.org/10.1117/12.2656828.6323741817112.