The recent literature of energy harvesting has shown growing interest in nonlinear aeroelastic systems for wind energy harvesting. Among other configurations, electrical power extraction from limit cycle oscillations of nonlinear beams and plates combined with a transduction mechanism in axial flow (inspired by flapping flags) have been pointed out as an alternative to traditional horizontal axis wind turbines if implemented on a large scale. Although the literature presents several works on the modeling and experimental verification of cantilevered plates in axial flow using piezoelectric transduction mechanism, the investigation of piezoelectric material distribution along the body length for proper electrode configuration to avoid cancelation of electrical outputs has not been covered. To address this problem, in this work, a fluid-structure interaction model that couples nonlinear beam equation with a lumped vortex-lattice potential flow model is implemented. The nonlinear model of the beam in axial flow is verified against wind tunnel experimental results and a numerical energy flow analysis is employed to determine the distribution of piezoelectric material along the body length. Dynamic strain distribution analysis is then performed to determine the electrode configuration to avoid cancelation of the electrical output.
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ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 28–30, 2016
Stowe, Vermont, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5049-7
PROCEEDINGS PAPER
On the Optimal Piezoelectric Material Distribution in Energy Harvesting From a Nonlinear Beam Under Axial Flow
Carlos De Marqui Junior,
Carlos De Marqui Junior
University of Sao Paulo, Sao Carlos, Brazil
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David Tan,
David Tan
Georgia Institute of Technology, Atlanta, GA
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Alper Erturk
Alper Erturk
Georgia Institute of Technology, Atlanta, GA
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Carlos De Marqui Junior
University of Sao Paulo, Sao Carlos, Brazil
David Tan
Georgia Institute of Technology, Atlanta, GA
Alper Erturk
Georgia Institute of Technology, Atlanta, GA
Paper No:
SMASIS2016-9299, V002T07A017; 8 pages
Published Online:
November 29, 2016
Citation
De Marqui Junior, C, Tan, D, & Erturk, A. "On the Optimal Piezoelectric Material Distribution in Energy Harvesting From a Nonlinear Beam Under Axial Flow." Proceedings of the ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting. Stowe, Vermont, USA. September 28–30, 2016. V002T07A017. ASME. https://doi.org/10.1115/SMASIS2016-9299
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