Award Data

SOLID BORON HAS LONG BEEN RECOGNIZED AS A POTENTIAL HIGH VOLUMETRIC DENSITY PROPELLANT FOR VOLUME LIMITED ROCKET AND AIR BREATHING PROPULSION SYSTEMS. HOWEVER, ACHIEVING THIS POTENTIAL HAS BEEN DIFFICULT DUE TO LOW COMBUSTION AND HEAT RELEASE EFFICIENCIES IN CONVENTIONALLY DESIGNED COMBUSTORS. A THREE PHASE MODEL OF BORON ASSISTED COMBUSTION IS POSTULATED AND THE ROLE THAT KINETIC SENSITIVITY ANAL ...

Currnet Ni-based metallic turbine shrouds, coated with ceramic abradable materials, are limited to temperatures not exceeding 2,100 F. Integrated High Performance Turbine Engine Technology (IHPTET) demands gas turbine hot sections with operational temperatures up to 2,500 F (1,370 C). Ceramic fiber reinforced ceramic matrix composites (CMCs) such as SiC/RBSN are candidate materials for these hig ...

In this proposal, Quadrant Engineering seeks SBIR funds to investigate technologies leading to the development of a compact, low-cost multifunction radar system for use aboard an unmanned aerial vehicle (UAV). If successful, the proposed radar system will provide airborne early warning (AEW), ground mapping and ground motion-detection capabilities. Several novel antenna concepts will be in ...

Demonstration of a cryogenically cooled electronic power converter/inverter exhibiting a throughput power of at least 50 kW is proposed. The demonstration topology may be utilized as a variable amplitude variable frequency dc-to-ac inverter, or as a polyphase ac-to-dc rectifier. Operation of the prototype is to be at a temperature of 77 degrees K utilizing liquid nitrogen as a coolan ...

The use of Kinetic Energy Weapons (KEW) against theater missile threats, such as the SCUD, require fast and accurate aim point determination to maximize the kill probability. It is proposed to incorporate an innovative active three-dimensional (3-D) imager in each KEW seeker to significantly improve the kill rate. The proposed 3-D Imager uses a rugged laser diode illuminator to generate a narrow b ...

We propose here new methods for system identification and active feedback control of axial flow compressors under conditions of incipient rotating stall and surge in the presence of inlet distortions. The nonlinear Moore-Greitzer model of rotating stall, which has proven useful for both simulation of rotating stall/surge dynamics of axial compression systems and for control design studies, will b ...

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ARPA has identified an important need for improved noise abatement while providing increased fuel economy for automobiles and other motor driven vehicles. This proposal is responsive to this need. It provides for a Phase I project to design and prove the feasibility of a noise abatement device for use on automobiles instead of conventional resonators and mufflers. This concept uses active noise ab ...

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Compromise of security networks is easiest through the communication links. Wired links between sensors and their controls require skilled preplanning and installation. They are expensive to maintain, especially in the connections to central security monitors and command centers. We propose to use a radio based communication system to replace the hardwire/fiberoptic links. This sysem is packet rad ...