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Investigation of various cantilever configurations for piezoelectric energy harvesting under rotational motion
Author(s): T. T. Hsieh; S. A. Chen; Y. C. Shu
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Paper Abstract

The article investigates various cantilever configurations for energy harvesting from rotational motion. A piezoelectric cantilever beam is mounted radially on a rotating body with different configurations. A harvester of type A (type B) refers to an outward (inward) configuration of beam with the direction of the transverse vibration perpendicular to the rotational axis. On the other hand, a rotary harvester of the type C is an outward beam with the transverse vibration in parallel to the rotational axis. A unified approach based on the Hamiltonian principle is employed and the methodology for deriving the formulations is based on the distributed parameter method. The result shows that both the type A and type C enjoy the feature of passive self-tuning of resonance. But the type C exhibits better ability in tuning than the type A. In addition, the type B shows significant harvested power at the cost of loss of tuning ability

Paper Details

Date Published: 21 March 2019
PDF: 7 pages
Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XII, 1096719 (21 March 2019); doi: 10.1117/12.2515393
Show Author Affiliations
T. T. Hsieh, National Taiwan Univ. (Taiwan)
S. A. Chen, National Taiwan Univ. (Taiwan)
Y. C. Shu, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 10967:
Active and Passive Smart Structures and Integrated Systems XII
Alper Erturk, Editor(s)

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