Energy scavenging from insect flight
dc.contributor.author | Aktakka, Ethem Erkan | en_US |
dc.contributor.author | Kim, Hanseup | en_US |
dc.contributor.author | Najafi, Khalil | en_US |
dc.date.accessioned | 2012-04-06T20:58:34Z | |
dc.date.available | 2012-04-06T20:58:34Z | |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | Aktakka, Ethem Erkan; Kim, Hanseup; Najafi, Khalil (2011). "Energy scavenging from insect flight." Journal of Micromechanics and Microengineering, vol. 21, 9, 095016. <http://hdl.handle.net/2027.42/90804> | en_US |
dc.identifier.uri | http://stacks.iop.org/0960-1317/21/i=9/a=095016 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/90804 | |
dc.description.abstract | This paper reports the design, fabrication and testing of an energy scavenger that generates power from the wing motion of a Green June Beetle (C otinis nitida ) during its tethered flight. The generator utilizes non-resonant piezoelectric bimorphs operated in the d 31 bending mode to convert mechanical vibrations of a beetle into electrical output. The available deflection, force, and power output from oscillatory movements at different locations on a beetle are measured with a meso-scale piezoelectric beam. This way, the optimum location to scavenge energy is determined, and up to ~115 µW total power is generated from body movements. Two initial generator prototypes were fabricated, mounted on a beetle, and harvested 11.5 and 7.5 µW in device volumes of 11.0 and 5.6 mm 3 , respectively, from 85 to 100 Hz wing strokes during the beetle's tethered flight. A spiral generator was designed to maximize the power output by employing a compliant structure in a limited area. The necessary technology needed to fabricate this prototype was developed, including a process to machine high-aspect ratio devices from bulk piezoelectric substrates with minimum damage to the material using a femto-second laser. The fabricated lightweight spiral generators produced 18.5–22.5 µW on a bench-top test setup mimicking beetles' wing strokes. Placing two generators (one on each wing) can result in more than 45 µW of power per insect. A direct connection between the generator and the flight muscles of the insect is expected to increase the final power output by one order of magnitude. | en_US |
dc.publisher | IOP Publishing | en_US |
dc.title | Energy scavenging from insect flight | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/90804/1/0960-1317_21_9_095016.pdf | |
dc.identifier.doi | 10.1088/0960-1317-21-9-095016 | en_US |
dc.identifier.source | Journal of Micromechanics and Microengineering | en_US |
dc.owningcollname | Physics, Department of |
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