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22 March 2021 Harnessing postbuckling instability of piezoelectric cylinders with corrugation for energy harvesting
King-James I. Egbe, Ali Matin Nazar, Pengcheng Jiao, Amir H. Alavi
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Proceedings Volume 11588, Active and Passive Smart Structures and Integrated Systems XV; 115881N (2021) https://doi.org/10.1117/12.2581669
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only
Abstract
In this study, we explore the postbuckling instability of piezoelectric-integrated cylinders under axial displacement for energy harvest applications. Experiments are conducted using 3D printed cylinders with piezoelectric transducers bonded on their outer and inner surfaces. The local and global postbuckling responses of the cylinders are triggered based on their design and geometry. Numerical simulations are carried out to study the effect of varying cylinder geometries on the harvested energy. A comparative study is performed between the numerical and experimental results. Furthermore, a corrugated design is proposed to tailor the postbuckling response of the cylinders from local buckling to global buckling. The results shows that the new corrugated designs for the cylinders improves the energy harvesting efficiency.
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King-James I. Egbe, Ali Matin Nazar, Pengcheng Jiao, and Amir H. Alavi "Harnessing postbuckling instability of piezoelectric cylinders with corrugation for energy harvesting", Proc. SPIE 11588, Active and Passive Smart Structures and Integrated Systems XV, 115881N (22 March 2021); https://doi.org/10.1117/12.2581669
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KEYWORDS
Energy harvesting
Ferroelectric polymers
Numerical modeling
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