Manufacturing of Physical Scale Models for Signature Reduction

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-10-C-0436
Agency Tracking Number: N09A-016-0417
Amount: $493,455.00
Phase: Phase II
Program: STTR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: N09-T016
Solicitation Number: 2009.A
Small Business Information
9063 Bee Caves Road, Austin, TX, -
DUNS: 625120902
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Harry Perkinson
 Principal Investigator
 (512) 263-2101
 hperkinson@tri-austin.com
Business Contact
 Monte Fellingham
Title: Contracts Administrator
Phone: (512) 263-2101
Email: mfellingham@tri-austin.com
Research Institution
 University of Louiville
 Timothy Gornet
 Vogt Engineering Center and
Rapid Prototyping Center
Louisville, KY, 40209-
 (502) 852-0714
 Nonprofit college or university
Abstract
The suppression of a ship’s magnetic signature is important in the effort to thwart detection by adversarial forces and prevent engagement with magnetic fused weapons. There are two ways to model ship magnetic signatures; through the use of finite element based analytical models and through the use of physical scale models (PSM). Finite element based analytical models are less expensive and have a much faster realization time. However, the analytical models do not accurately portray the magnetic field leading to either under designed or over designed magnetic signal suppression systems. Physical scale modeling processes have been refined to the point that the models can generate a magnetic signal that is within 10% of the signal of the full sized ship. The physical scale models are very expensive; they are handcrafted. The realization time for the physical scale model takes too long resulting in PSM obsolescence before completion. A means to use a low cost manufacturing process and high magnetic permeability materials holds the promise of reducing the cost and realization time for high fidelity PSM. The cost and realization time reductions will be between 35% and 65% the cost and realization time of current physical scale models.

* Information listed above is at the time of submission. *

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