Development of Magnetostrictive Energy Harvesting of Mechanical Vibration Energy

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,910.00
Award Year:
2010
Program:
STTR
Phase:
Phase I
Contract:
N00014-10-M-0318
Award Id:
95109
Agency Tracking Number:
N10A-020-0412
Solicitation Year:
n/a
Solicitation Topic Code:
NAVY 10T020
Solicitation Number:
n/a
Small Business Information
2500 N. Loop Drive, Ames, IA, 50010
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
798683355
Principal Investigator:
Eric Summers
Dir. of Materials Enginee
(515) 296-8030
eric.summers@etrema.com
Business Contact:
Jon Snodgrass
Executive Vice President
(515) 296-8030
jon.snodgrass@etrema.com
Research Institution:
Ames Lab - Iowa State University
Tom Lograsso
111 TASF
Ames, IA, 50011
(515) 294-8425
Nonprofit college or university
Abstract
Energy harvesting devices utilizing magnetostrictive materials are a logical choice for harvesting the high impedance (high force, low displacement) vibrations found aboard Navy ships. Force-based devices, enabled by magnetostrictive materials, can harvest energy over an extremely large bandwidth, approximately 35 and 70 Hz currently, making them more desirable in situations aboard Navy ships were transient vibration conditions created by varying ship speeds is present. This broader bandwidth also means easier installation of the devices without the need for exact placement on the vibration source and eliminating tuning requirements typical of the displacement based devices. The robustness and formability that Galfenol alloys exhibit allow 1-dimensional (1D), 2-dimensional (2D), and 3-dimensional (3D) energy harvesting devices to be developed and optimized for the identified need and vibration coupling scheme. A 1D Galfenol device could consist of wire(s) bundled together to form an energy harvesting cable that could be wrapped around a vibrating column; a 2D Galfenol device could consist of a single Galfenol sheet attached to a vibrating panel; and a 3D Galfenol device could consist of structural support on-which the vibration source is mounted. The proposed work will investigate 1D and 2D Galfenol energy harvesting devices in Navy ship environments.

* information listed above is at the time of submission.

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