Manufacturing of Stress Physical Scale Models (SPSMs) for Signature Reduction and Resistance to Environmental Stress

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$149,998.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
N00014-12-M-0010
Agency Tracking Number:
N112-153-0941
Solicitation Year:
2011
Solicitation Topic Code:
N112-153
Solicitation Number:
2011.2
Small Business Information
Texas Research Institute Austin, Inc.
9063 Bee Caves Road, Austin, TX, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
625120902
Principal Investigator:
Harry Perkinson
Principal Investigator
(512) 263-2101
hperkinson@tri-austin.com
Business Contact:
Monte Fellingham
Contracts Administrator
(512) 263-2101
mfellingham@tri-austin.com
Research Institution:
Stub




Abstract
The Stress Physical Scale Model (SPSM) is expected to perform a critical role in the characterization and remediation of magnetic signatures in Navy ships. The properly executed SPSM permits the accurate sizing and location of degaussing systems which can take into account the change in magnetic signature due to structural loading. To be of cost benefit, the SPSM must be constructed before the final design of the Navy vessel. Because, up to this point in time, the SPSM have been painstakingly constructed using highly trained craftsmen, the redesigns and restarts have made the use of the SPSM approach very expensive. The SPSM approach to characterizing magnetic signatures and degaussing system design is being supplanted by computer based finite element models that, while less accurate and less capable in measuring the permanent magnetization, are much more flexible and responsive to design changes at a lower cost. TRI/Austin proposes to develop, based on the permeability-thickness and equivalent material technique, a SPSM fabrication process that will a) accurately model the magnetic signature of the Navy ship while under load, b) be low cost and have a reduced lead time, and c) be highly flexible to design changes without major cost or schedule impacts.

* information listed above is at the time of submission.

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