Energy harvesting from flutter

With the continuously decreasing power requirements of modern electronics, energy harvesting from sources such as solar or wind power is becoming an increasingly viable option to power small devices almost indefinitely, without the restrictions imposed by battery replacement. In this project, a piez...

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Main Author: Voon, Siew Li
Other Authors: New Tze How Daniel
Format: Final Year Project
Language:English
Published: 2018
Subjects:
Online Access:http://hdl.handle.net/10356/74416
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-744162023-03-04T19:00:54Z Energy harvesting from flutter Voon, Siew Li New Tze How Daniel Ng Bing Feng School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering::Alternative, renewable energy sources With the continuously decreasing power requirements of modern electronics, energy harvesting from sources such as solar or wind power is becoming an increasingly viable option to power small devices almost indefinitely, without the restrictions imposed by battery replacement. In this project, a piezoelectric energy harvesting device driven by aeroelastic flutter is proposed and evaluated experimentally. From an initial harvester design, prototype harvesters are built and tested in a low-speed wind tunnel at wind speeds up to 10m/s. Three such configurations of prototypes are tested until a configuration with satisfactory performance is obtained, consisting of a cantilevered beam attached to a larger flap through a joint hinge. Based on this configuration, a parametric investigation is performed with five variables in order to study the corresponding effects on the flutter speed, output voltage, and frequency. Depending on the configuration, the prototype harvester is found to have flutter speeds of around 3m/s, above which limit cycle oscillations occur with output voltages of 10V and above. Using these results and observations, one or more parameters of the harvester can be adjusted to match a given wind environment or desired performance. Finally, potential applications of this harvester are suggested, and its performance is compared to similar harvester designs from existing literature. Bachelor of Engineering (Aerospace Engineering) 2018-05-17T07:31:09Z 2018-05-17T07:31:09Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/74416 en Nanyang Technological University 78 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering::Alternative, renewable energy sources
spellingShingle DRNTU::Engineering::Mechanical engineering::Alternative, renewable energy sources
Voon, Siew Li
Energy harvesting from flutter
description With the continuously decreasing power requirements of modern electronics, energy harvesting from sources such as solar or wind power is becoming an increasingly viable option to power small devices almost indefinitely, without the restrictions imposed by battery replacement. In this project, a piezoelectric energy harvesting device driven by aeroelastic flutter is proposed and evaluated experimentally. From an initial harvester design, prototype harvesters are built and tested in a low-speed wind tunnel at wind speeds up to 10m/s. Three such configurations of prototypes are tested until a configuration with satisfactory performance is obtained, consisting of a cantilevered beam attached to a larger flap through a joint hinge. Based on this configuration, a parametric investigation is performed with five variables in order to study the corresponding effects on the flutter speed, output voltage, and frequency. Depending on the configuration, the prototype harvester is found to have flutter speeds of around 3m/s, above which limit cycle oscillations occur with output voltages of 10V and above. Using these results and observations, one or more parameters of the harvester can be adjusted to match a given wind environment or desired performance. Finally, potential applications of this harvester are suggested, and its performance is compared to similar harvester designs from existing literature.
author2 New Tze How Daniel
author_facet New Tze How Daniel
Voon, Siew Li
format Final Year Project
author Voon, Siew Li
author_sort Voon, Siew Li
title Energy harvesting from flutter
title_short Energy harvesting from flutter
title_full Energy harvesting from flutter
title_fullStr Energy harvesting from flutter
title_full_unstemmed Energy harvesting from flutter
title_sort energy harvesting from flutter
publishDate 2018
url http://hdl.handle.net/10356/74416
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