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Piezoelectric-silicone structure for vibration energy harvesting: testing and modelling

Zabek, Daniel ORCID:, Pullin, Rhys ORCID:, Pearson, Matthew ORCID:, Grzebielec, Andrzej and Skoczkowski, Tadeusz 2021. Piezoelectric-silicone structure for vibration energy harvesting: testing and modelling. Smart Materials and Structures 30 (3) , 035002. 10.1088/1361-665X/abd964

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Mechanical vibrations from heavy machines, building structures or the human body can be harvested and directly converted into electrical energy. In this paper the potential to effectively harvest mechanical vibrations and locally generate electrical energy using a novel piezoelectric-rubber composite structure is explored. Piezoelectric lead zirconate titanate (PZT) is bonded to silicone rubber to form a cylindrical composite-like energy harvesting device which has the potential to structurally dampen high acceleration forces and generate electrical power. The device was experimentally load tested and an advanced model was verified against experimental data. While an experimental output power of 57 μW/cm3 was obtained, the advanced model further optimises the device geometry via a relative optimisation approach. The proposed energy harvesting device generates sufficient electrical power for structural health monitoring and remote sensing applications, while also providing structural damping properties for low frequency mechanical vibrations.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: Q Science > Q Science (General)
Additional Information: Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
Publisher: IOP Publishing
ISSN: 0964-1726
Funders: Royal Academy of Engineering
Date of First Compliant Deposit: 14 January 2021
Date of Acceptance: 7 January 2021
Last Modified: 05 May 2023 00:30

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