Numerical investigation of the transient charging behavior of a piezoelectric vibration-based energy harvester for different base excitations

Andreas Hegendörfer; Julia Mergheim

doi:10.1117/12.2611762

20 April 2022 Numerical investigation of the transient charging behavior of a piezoelectric vibration-based energy harvester for different base excitations

Andreas Hegendörfer, Julia Mergheim

Author Affiliations +

Proceedings Volume 12043, Active and Passive Smart Structures and Integrated Systems XVI; 120430S (2022) https://doi.org/10.1117/12.2611762
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States

Abstract

A finite element method to simulate energy harvesters, recently introduced by the authors, is applied to investigate the transient charging behavior of a strongly coupled bimorph piezoelectric vibration-based energy harvester for a harmonic and a shock-like triangular pulse excitation. The system simulation method is extended to allow for charging a capacitor and the standard and the synchronized switch harvesting on inductor (SSHI) circuits are considered. The simulation results show that the standard circuit is more efficient for the harmonic excitation, while the SSHI circuit is more efficient for the shock-like triangular excitation. The influence of different capacitors is discussed.

Conference Presentation

Citation Download Citation

Andreas Hegendörfer and Julia Mergheim "Numerical investigation of the transient charging behavior of a piezoelectric vibration-based energy harvester for different base excitations", Proc. SPIE 12043, Active and Passive Smart Structures and Integrated Systems XVI, 120430S (20 April 2022); https://doi.org/10.1117/12.2611762

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