Vibration-based energy harvesting is a growing field for generating low-power electricity to use in wireless electronic devices, such as the sensor networks used in structural health monitoring applications. Locally resonant metastructures, which are structures that comprise locally resonant metamaterial components, enable bandgap formation at wavelengths much longer than the lattice size, for critical applications such as low-frequency vibration attenuation in flexible structures. This work aims to bridge the domains of energy harvesting and locally resonant metamaterials to form multifunctional structures that exhibit both low-power electricity generation and vibration attenuation capabilities. A fully coupled electromechanical modeling framework is developed for two characteristic systems and their modal analysis is presented. Simulations are performed to explore the vibration and electrical power frequency response maps for varying electrical load resistance, and optimal loading conditions are presented. Case studies are presented to understand the interaction of bandgap formation and energy harvesting capabilities of this new class of multifunctional energy-harvesting locally resonant metastructures. It is shown that useful energy can be harvested from the locally resonant metastructure without significantly diminishing their dramatic vibration attenuation in the locally resonant bandgap. Thus, by integrating energy harvesters into a locally resonant metastructure, there is new potential for multifunctional self-powering or self-sensing locally resonant metastructures.
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ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–20, 2017
Snowbird, Utah, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5825-7
PROCEEDINGS PAPER
Multifunctional Energy Harvesting Locally Resonant Metastructures
Christopher Sugino,
Christopher Sugino
Georgia Institute of Technology, Atlanta, GA
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Vinciane Guillot,
Vinciane Guillot
École Nationale des Travaux Publics de l’État (ENTPE), Vaulx-en-Velin, France
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Alper Erturk
Alper Erturk
Georgia Institute of Technology, Atlanta, GA
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Christopher Sugino
Georgia Institute of Technology, Atlanta, GA
Vinciane Guillot
École Nationale des Travaux Publics de l’État (ENTPE), Vaulx-en-Velin, France
Alper Erturk
Georgia Institute of Technology, Atlanta, GA
Paper No:
SMASIS2017-3951, V001T07A014; 11 pages
Published Online:
November 9, 2017
Citation
Sugino, C, Guillot, V, & Erturk, A. "Multifunctional Energy Harvesting Locally Resonant Metastructures." Proceedings of the ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies. Snowbird, Utah, USA. September 18–20, 2017. V001T07A014. ASME. https://doi.org/10.1115/SMASIS2017-3951
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