Award Data

This effort to improve the capabilities of the ESM system will increase the reliability and reduce lifecycle support costs of the Radar Wideband (RWB) subsystem on submarines. Analog to digital converter (A/D) based digital receivers will be applied to yield improvements in Radar signal acquisition and processing. In-phase and Quadrature (I/Q) data streams will be created from which intra pulse mo ...

ABSTRACT: Combustion stability is critical to the performance of augmented military jet engines. Instabilities such as screech can result in reduced augmentor performance, blowout, or even catastrophic failure. Screech remains a difficult problem to predict and mitigate, and its occurrence can limit the operational flight envelope of military systems. Many of the passive techniques used to sup ...

Marine gas turbine engines are typically 30 to 40% efficient at full power resulting in 60 to 70% of the input energy being exhausted to the environment as waste heat. These engines are even less efficient at partial power conditions where they often operate. Bottoming cycles, such as organic Rankine cycles, can utilize this waste heat to produce useful work, improving overall efficiency by 10 to ...

Hydrothermal vents emit large amounts of hot water, which has the potential to produce electric power. This type of power source can enable remote sea sensors, recharge autonomous underwater vehicles, and facilitate a variety of deep sea activities. Developing a power system for this application is challenging because the environment is extremely corrosive, mineral precipitation and biological act ...

The notional performance parameters and kinematic requirements for the SM3 Blk IIB mission would benefit from the availability of advanced materials manufacturing methods that could enhance the technical properties and lower the cost of TDACS components. This Phase 2 STTR proposal addresses the requirement to significantly improve the affordability and performance of ultrahigh temperature capable ...

Providing power for dismounted soldiers on long-duration missions remains a critical technical challenge. Polymer electrolyte membrane (PEM) fuel cells convert hydrogen fuel directly to electric power and offer a lightweight and efficient power source for individual soldiers. However, technology for storing the hydrogen fuel is still too heavy to meet the Armys mission requirements. We propose to ...

Legacy copper-based power distribution and degaussing cables will not be able to meet the future requirements of Navy ships and submarines. While cable systems employing high temperature superconductors (HTS) have the potential to meet this need, further development work is required to improve the performance and increase the technology readiness level of key system components. The proposed work f ...

Small manned and unmanned aircraft need advanced propulsion technology to increase mission capabilities and improve reliability. We propose to develop an innovative recuperator technology that can significantly reduce fuel consumption for small gas turbines. Our microchannel recuperators are built using advanced manufacturing techniques that will enable a compact, inexpensive recuperator to signif ...

Cabling faults can be difficult to identify and locate when a large number of interconnections are used such as in the shipboard Machinery Control System. Ungrounded systems further complicate diagnosis, since signal voltages and currents are small amplitude. It often takes a considerable amount of time to identify and locate the fault, and the equipment capability can be substantially reduced whi ...

Landmines and buried improvised explosive devices (IED) represent a clear and present danger to the modern U.S. warfighter. The ability to survey a potentially hazardous area from the air using an unmanned aerial vehicle (UAV)-mounted optical acoustic system has the potential to greatly reduce causality rates. However, existing acoustic sources are inadequate to stimulate the earth at the necessar ...