PT1.270 - The Optimal Axial Strain Distribution in a Piezoelectric Vibrating Energy Harvester (PVEH)
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Poster
- Chapter
- PT1 - Theory, Modelling, Design and Testing
- Author(s)
- E. Salman, D. Rosenstock, D. Elata - Israel Institute of Technology, Haifa (Israel)
- Pages
- 245 - 246
- DOI
- 10.5162/EUROSENSORSXXXVI/PT1.270
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
This study considers the optimal strain distribution in a piezoelectric vibrating energy harvester (PVEH), that maximizes the harvested energy. In many previous studies it was tacitly assumed that a uniform distribution of axial strain in the piezoelectric layer, ensures that the harvested energy is maximal. Though this assumption is intuitive, it was not supported by analysis. In this work we derive and present a formal analytic proof confirming that, for a given amount of energy in the vibrating structure, a uniform distribution of strain in the piezoelectric layer ensures that the harvested energy is maximal.