High Damping Resin for Impregnation of Propulsion Scale Electric Machinery

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N65540-04-C-0016
Agency Tracking Number: N032-0652
Amount: $69,998.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solitcitation Year: 2003
Solitcitation Topic Code: N03-211
Solitcitation Number: 2003.2
Small Business Information
TEXAS RESEARCH INSTITUTE AUSTIN, INC.
9063 Bee Caves Road, Austin, TX, 78733
Duns: 625120902
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 J. Thornton
 Principal Investigator
 (512) 263-2101
 jsthornton@tri-austin.com
Business Contact
 Monte Fellingham
Title: Contracts Administrator
Phone: (512) 263-2101
Email: mfellingham@tri-austin.com
Research Institution
N/A
Abstract
A new damping resin is needed for the impregnation of the permanent magnet motor electric drive system that is currently being developed for the U.S. Navy's new DD(X) destroyer. TRI/Austin proposes the use of a specially-modified epoxy resin. The unique modifiers will serve to increase the viscoelasticity of the base resin, thereby producing a polymer with higher damping abilities. Preliminary studies have produced resins with loss factors greater than 0.75 for the temperature range of 80-120°C at a 120 Hz frequency. The epoxy modification provides high temperature stability that will be necessary for extended operation in a motor assembly as well as superior corrosion resistance in the harsh marine environment. Modal analysis and finite elemental analysis (FEA) will be utilized to determine the damping efficiency of the resin. The resin will be compatible with the vacuum-pressure impregnation (VPI) method. TRI/Austin is teaming with the designer and manufacturer of the electric drive system for the new-generation DD(X) destroyer in order to produce a fully-compatible resin system for this specific application. Their expertise in the system's requirement and TRI's proficiency in resin development will result in a feasible damping material at the end of the Phase I effort.

* information listed above is at the time of submission.

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