Award Data

Work related injuries and illnesses have risen to their highest level in ten years. Recent Departmestatistics indicate that a total of 6.8 million cases were reported in 1992 at a rate of 8.9 cases pfinancial cost of occupational injuries are in $60 billion range and include such things as medicallegal fees, and lost productivity. These data provide compelling evidence that work-related injuriesas ...

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Special Operations Forces (SOF) require a real time display of appr opriate data to allow the helmsman to access the damage potential to his cargo (equipment/personnel) and support his decision relative to speed and course selection when operating in rough water. Furthermore, maintenance support personnel need quantitative data to support design decisions and maintenance activities. This proposa ...

It has been proven, for gas turbines, that brush seals exhibit substantially lower leakage in close clearance areas than conventional labyrinth seals. Direct efficiency gains from reducing seal leakage losses in turbopumps with brush seals potentially amounts to several percent of the total pump power consumption. As such, the case for transitioning brush seals to rocket turbopumps is compelling ...

High Pressure Compressor (HPC) pressure ratios of up to 40:1 are required to achieve 100:1 cycle pressure ratios. A multi-stage axial HPC configuration will be too long and heavy and too inefficient in later stages (at these higher pressure ratios). Increased tip clearance to span ratio will also lead to low efficiency and surge margin for the axial HPC. The innovations of the proposed work inc ...

Low cost compact diffusers are needed for small gas turbine compressor stages to economically minimize centrifugal compressor overall diameter yet permit high efficiency and wide operating range. The proposer has performed over 130 different detailed tests (on more than 40 different stage configurations) with various conventional and novel diffusers (vaneless, low solidity airfoil, channel, tande ...

High cycle fatigue of turbine engines is of vital concern to the Navy. The proposed project applies an innovative measurement system for blade vibration to an engine health monitoring (EHM) system for monitoring and avoiding HCF damage in turbine engine fans and compressors. Although technical feasibility of the instrumentation system was shown under a prior Phase I Army SBIR, operational f ...

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