A Novel Eddy Current Brake Using Graded Conductivity and Wavenumber to Maximize Force

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$70,000.00
Award Year:
2007
Program:
STTR
Phase:
Phase I
Contract:
N00014-07-M-0350
Award Id:
83413
Agency Tracking Number:
N074-008-0069
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
30 South Park Square, Suite 201, Marietta, GA, 30060
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
867393167
Principal Investigator:
Mike Werst
Sr. Engineering Scientist
(512) 232-1604
m.werst@mail.utexas.edu
Business Contact:
Tony Morris
President & CEO
(404) 386-4036
tmorris@american-maglev.com
Research Institute:
THE UNIV. OF TEXAS AT AUSTIN
Susan W Sedwick
Ofc of Sponsored Projects Osp
PO Box 7726
Austin, TX, 78713
(512) 471-6424
Nonprofit college or university
Abstract
American Maglev Technology, Inc. (AMT) is pleased to respond to the Navy's Advanced Eddy Current Braking Technology STTR. AMT was approached by The University of Texas at Austin Center for Electromechanics (UT-CEM) to team on the development of a replacement for the Navy's high maintenance water brake. This team proposes a unique, passive eddy current brake to accomplish the same result and fit in the existing allocated water brake spaces. An unusual combination of material composition and permanent magnet (PM) size and spacing allows that peak force per unit length to be effective during the entire deceleration. Both are linearly graded over the length of the eddy current conducting spear and the PM magnets remain stationary. The geometry is coaxial, hence magnetically self centering ensuring a clean coaxial translation during deceleration. Powerful PM magnets at the entry of the brake are tapered to correct power cylinder misalignment and transition to a small magnetic air gap. Phase I will consist of an optimization of design variables followed by a proof of principle demonstration made possible by matching funds by American Maglev.

* information listed above is at the time of submission.

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