Lee, Hyeong Jae and Sherrit, Stewart and Tosi, Luis Phillipe and Colonius, Tim (2016) Design and experimental evaluation of flextensional-cantilever based piezoelectric transducers for flow energy harvesting. In: Smart Materials and Nondestructive Evaluation for Energy Systems 2016. Proceedings of SPIE. No.9806. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 980610. ISBN 9781510600478. https://resolver.caltech.edu/CaltechAUTHORS:20180713-132011622
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Abstract
Cantilever type piezoelectric harvesters, such as bimorphs, are typically used for vibration induced energy harvesting. However, a major drawback of a piezoelectric bimorph is its brittle nature in harsh environments, precipitating short life-times as well as output power degradation. The emphasis in this work is to design robust, highly efficient piezoelectric harvesters that are capable of generating electrical power in the milliwatt range. Various harvesters were modeled, designed and prototyped, and the flextensional actuator based harvester, where the metal cantilever is mounted and coupled between two flextensional actuators, was found to be a viable alternative to the cantilever type piezoelectric harvesters. Preliminary tests show that these devices equipped with 5x5x36 mm two piezoelectric PZT stacks can produce greater than 50 mW of power under air flow induced vibrations.
Item Type: | Book Section | ||||||||
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Additional Information: | © 2016 Society of Photo-Optical Instrumentation Engineers (SPIE). | ||||||||
Subject Keywords: | Piezoelectric Devices, flow energy harvesting, transducers, flextensional, fluid structure interaction | ||||||||
Series Name: | Proceedings of SPIE | ||||||||
Issue or Number: | 9806 | ||||||||
DOI: | 10.1117/12.2219269 | ||||||||
Record Number: | CaltechAUTHORS:20180713-132011622 | ||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180713-132011622 | ||||||||
Official Citation: | Hyeong Jae Lee, Stewart Sherrit, Luis Phillipe Tosi, Tim Colonius, "Design and experimental evaluation of flextensional-cantilever based piezoelectric transducers for flow energy harvesting", Proc. SPIE 9806, Smart Materials and Nondestructive Evaluation for Energy Systems 2016, 980610 (1 April 2016); doi: 10.1117/12.2219269; https://doi.org/10.1117/12.2219269 | ||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
ID Code: | 87836 | ||||||||
Collection: | CaltechAUTHORS | ||||||||
Deposited By: | George Porter | ||||||||
Deposited On: | 16 Jul 2018 15:57 | ||||||||
Last Modified: | 16 Nov 2021 00:21 |
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