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Development and Characterization of an Aeroelastic Instability Energy Harvester

Bagatti, Timothy James (2010) Development and Characterization of an Aeroelastic Instability Energy Harvester. Master's Thesis, University of Pittsburgh. (Unpublished)

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Development of new renewable energy sources has become paramount in the battle againstrising energy consumption and prices, environmental destruction, and global climate change.However, prior research efforts have indicated an aeroelastic instability energy harvester(AIEH) is capable of generating more than 70 mW of power at 4 mph wind (below thecut-in speed of any wind turbine). The AIEH has shown an enhancement in performancein the presence of a bluff body (contrary to turbines) and a non-linear increase in powerproduction with an increase in wind speed. It also allows the consumer to choose the extentof investment cost (less than $50 for parts), with minimal maintenance cost. The intent ofthis thesis work is to gain a better understanding of AIEHs in a number of different ways:characterizing the limit-cycle oscillation (LCO) experienced by an AIEH; validating the beliefthat an active smart material may enhance the power density of an AIEH; validating andcharacterizing the enhanced performance exhibited by AIEHs in the presence of a bluff body.In the short term AIEHs are expected to be of particular utility for powering remote civilinfrastructure sensor systems. In the long term they may have the potential to become aviable, new, renewable energy technology with power generation levels appropriate to societalenergy needs. Also, its relatively low investment and maintenance cost has the potential tomake this technology ideal for third world applications.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Bagatti, Timothy Jamestjb28@pitt.eduTJB28
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairWeiland, Lisa Maucklmw36@pitt.eduLMW36
Committee MemberCole, Daniel Gdgcole@pitt.eduDGCOLE
Committee MemberKimber, Mark Leemlk53@pitt.eduMLK53
Date: 30 September 2010
Date Type: Completion
Defense Date: 14 June 2010
Approval Date: 30 September 2010
Submission Date: 24 June 2010
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Mechanical Engineering
Degree: MSME - Master of Science in Mechanical Engineering
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: aeroelastic instability; aeroelasticity; limit cycle oscillation; multi-mode flutter; wind energy
Other ID:, etd-06242010-112339
Date Deposited: 10 Nov 2011 19:48
Last Modified: 15 Nov 2016 13:45


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