On the optimal planform of a cantilever unimorph piezoelectric vibrating energy harvester
Author(s): |
Eliya Salman
Sahar Lustig David Elata |
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Medium: | journal article |
Language(s): | English |
Published in: | Smart Materials and Structures, 2 February 2024, n. 3, v. 33 |
Page(s): | 035029 |
DOI: | 10.1088/1361-665x/ad28d0 |
Abstract: |
This work relates to piezoelectric vibrating energy harvesters, that are constructed from a unimorph cantilever with a massive edge block. The dynamic response of the cantilever is considered when it is excited into vibrations at its natural frequency, where its deformation amplitude is maximal. The optimal response of such a harvester is achieved when the amplitude of the axial strain in the piezoelectric layer, is uniform. Practical technological considerations dictate the thickness of the unimorph, but its planform geometry (i.e. the vareation of the width along the cantilever) is a design choice. The optimal planform of such a unimorph cantilever has been the focus of many previous studies, which included extensive simulations and experimental investigations. In these previous studies it was concluded that the optimal planform is a |
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10769286 - Published on:
29/04/2024 - Last updated on:
29/04/2024