2024
DOI: 10.1088/1361-665x/ad3bfe
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Numerical and experimental investigation of an auxetic piezoelectric energy harvester with frequency self-tuning capability

Huili Zhang,
Shun Chen,
Mahmoud Karimi
et al.

Abstract: To deal with the limited availability of long-lasting power sources for sensor nodes in industrial environments, a novel piezoelectric energy harvester with high efficiency and a wide working bandwidth was designed to harvest broadband and random vibrations from the ambient environment. The developed energy harvester adopts a doubly clamped piezoelectric beam with a peanut-shaped auxetic structure to improve the power output. It also incorporates a sliding proof mass for frequency self-tuning, enabling a wider… Show more

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