SBIR/STTR Research Award
ACOUSTICALLY DAMPED TORPEDO PROPELLERS
Award amount
$58,348Program and phase
SBIR · Phase IAward year
1989Award details
- Awarding agency
- Department of Defense
- Branch
- Navy
- Recipient company
- FOSTER-MILLER, INC.
- Proposal award date
- Not reported
- Contract end date
- Not reported
- UEI
- XDF1FRDG8KK4
- Solicitation number
- Not reported
- Topic code
- Not reported
Research abstract
TORPEDO PROPELLERS ARE EXPOSED TO TIME VARYING UNSTEADY FORCES. THESE WATER INDUCED LOADS CREATE BLADE VIBRATIONS WHICH GENERATE NOISE. FOSTER-MILLER PROPOSES TO CHARACTERIZE AND OPTIMIZE THE HIGH DAMPING AND EXCELLENT STRUCTURAL PROPERTIES OF GRAPHITE FIBER REINFORCED MAGNESIUM METAL MATRIX COMPOSITES. AN ALIGNED, DISCONTINUOUS FIBER PREFORM WILL BE DEVELOPED TO ENHANCE THE INHERENT STRENGTH AND DAMPING CAPACITY OF THE MAGNESIUM MATRIX. AN INNOVATIVE, COST-EFFECTIVE, PRESSURIZED LIQUID METAL INFILTRATION METHOD WILL BE USED TO FABRICATE REPRESENTATIVE NEAR NET-SHAPE PROPELLER BLADES. THE PHASE I EFFORT WILL PROVE THE FEASIBILITY OF FABRICATING A FULL SCALE PROPELLER FOR UNDERWATER ACOUSTIC AND STRUCTURAL TESTING IN PHASE II.
Technology keywords
Not reported
Research funding history
924 SBIR/STTR records share this UEI (1983–2006). Reported award amounts total $172,256,128. Reported amounts are not federal obligations.
Phases: Phase I, Phase II
Agencies: Department of Defense, National Aeronautics and Space Administration, Department of Health and Human Services, Department of Energy, Department of Transportation, Environmental Protection Agency