As a compact and durable design concept, energy harvesting skin (EH skin), which consists of piezoelectric patches directly attached onto the surface of a vibrating structure as one embodiment, has been recently proposed. This study aims at developing an electromechanically-coupled analytical model of the EH skin so as to understand its electromechanical behavior and get physical insights about important design considerations. Based on the Kirchhoff plate theory, the Hamilton’s principle is used to derive the differential equations of motion. The Rayleigh-Ritz method is implemented to calculate the natural frequency and the corresponding mode shapes of the EH skin. The electrical circuit equation is derived by substituting the piezoelectric constitutive relation into Gauss’s law. Finally, the steady-state output voltage is obtained by solving the differential equations of motion and electrical circuit equation simultaneously. The results of the analytical model are verified by comparing those of the finite element analysis (FEA) in a hierarchical manner.
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ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 17–20, 2014
Buffalo, New York, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-4641-4
PROCEEDINGS PAPER
Analysis of Electromechanical Performance of Energy Harvesting Skin Based on the Kirchhoff Plate Theory
Heonjun Yoon,
Heonjun Yoon
Seoul National University, Seoul, Korea
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Byeng D. Youn,
Byeng D. Youn
Seoul National University, Seoul, Korea
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Heung S. Kim
Heung S. Kim
Dongguk University-Seoul, Seoul, Korea
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Heonjun Yoon
Seoul National University, Seoul, Korea
Byeng D. Youn
Seoul National University, Seoul, Korea
Heung S. Kim
Dongguk University-Seoul, Seoul, Korea
Paper No:
DETC2014-35433, V008T11A096; 13 pages
Published Online:
January 13, 2015
Citation
Yoon, H, Youn, BD, & Kim, HS. "Analysis of Electromechanical Performance of Energy Harvesting Skin Based on the Kirchhoff Plate Theory." Proceedings of the ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 8: 26th Conference on Mechanical Vibration and Noise. Buffalo, New York, USA. August 17–20, 2014. V008T11A096. ASME. https://doi.org/10.1115/DETC2014-35433
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