High Damping Resin for Impregnation of Propulsion Scale Electric Machinery

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$599,995.00
Award Year:
2006
Program:
SBIR
Phase:
Phase II
Contract:
N00024-06-C-4126
Agency Tracking Number:
N032-0652
Solicitation Year:
2003
Solicitation Topic Code:
N03-211
Solicitation Number:
2003.2
Small Business Information
TEXAS RESEARCH INSTITUTE AUSTIN, INC.
9063 Bee Caves Road, Austin, TX, 78733
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
625120902
Principal Investigator:
Brad Rix
Principal Investigator
(512) 263-2101
brix@tri-austin.com
Business Contact:
Monte Fellingham
Contracts Administrator
(512) 263-2101
mfellingham@tri-austin.com
Research Institution:
n/a
Abstract
In Phase I, Texas Research Institute Austin (TRI/Austin) developed a unique polymer system that exhibited excellent damping ability, with loss factors greater than 0.75 over much of the 80-120 degrees C temperature range at 120 Hz frequency. Stator modal analysis and finite element analysis verified the damping contribution of the resin. The resin also showed excellent dielectric strength and saltwater proofness under applied voltage. Based on these characterizations, it is feasible that this new epoxy-based material could be used as a VPI resin in propulsion motors to reduce the acoustic signature of the U.S. Navy’s electric drive system currently in development for the new DD(X) destroyer. During the Phase II, TRI/Austin will further improve the damping resin and perform additional screening tests and FEA. Structure-borne and airborne noise and vibration measurements will be determined for a 15-20 kW motor in which the stator has been impregnated with the TRI/Austin resin, with comparisons made to a motor impregnated with a Navy-approved resin. TRI/Austin is teaming with a designer and manufacturer of Naval electric propulsion motors for the DD(X) application, and with a VPI resin manufacturer that will provide critical testing and evaluation of the resin as an addition to their product line.

* information listed above is at the time of submission.

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