High force compression mode to shear mode piezoelectric energy harvesting

Date published

2024-02-05

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IEEE

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Conference paper

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Citation

Crawley FJ, Luo Z. (2024) High force compression mode to SHEAR mode piezoelectric energy harvesting. In: 2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS), 11-14 December 2023, Abu Dhabi, United Arab Emirates

Abstract

This paper evaluates a novel design of a bridge shear-force structure used to transfer large compressive loads into shear loads on the surface of a piezo disc. The wave/crinkle design can increase the overall number of bridges in a concentric orientation to the circumference with the aim of producing multiple shear force pinch points, changing the shear mode extension path along the piezo discs' axial plane, allowing for tunability, and increasing electrical energy output of a Piezoelectric Energy Harvester (PEH).

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Github

Keywords

Piezo, Energy Harvesting, Shear, Compression, Spring Washer, Crinkle Washer, Wave spring

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Attribution 4.0 International

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This work was supported by Engineering and Physical Science Research Council (EPSRC) funded ICASE project EP/V519509/1.