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The proposed effort in Phase I is to identify properties of propellants that solidify at cryogenic temperatures, "cryosolids", that will be tested in Phase Ii and to deliver a detailed design of a cryogenic testing device. This device will be able to measure tensile, flexural, shear and compressive strength, elastic moduli, and hardness of these cryosolids. In addition, this device will be able ...

The Joint Surveillance System Computer-Communications System (C-CS) provides mission-critical support to Region Operations Control Centers (ROCCs), Sector Operations Control Centers (SOCCs), and North American Aerospace Defense Command (NORAD). New mission requirements (drug interdiction) and new sensor/system developments exceed the scope of the original design and mission of the C-CS. As a resu ...

High intensity cooling of expansion turbine blades is proposed, using a self-stabilized evaporation/condensation process within each blade. The result is low blade structural temperature, with waste heat delivered to a low pressure air flow. This is a key technology requirement for development of a fully cooled gas turbine, with potential for operation at radically increased turbine inlet temper ...

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 ...

Today's tactical aircraft employ sophisticated onboard sensors which can be managed in several dimensions, including spatial focus, sensing modality, and temporal scheduling. Effective mission operations, such as air interdiction and counter air, require efficient sensor control and scheduling that accounts for the limited availability of sensor resources to support all current sensor tasks, as w ...

The objective of this research is to define and validate an Avionics Information Fusion System (AIFS) which optimally combines onboard and offboard data. We propose an architecture containing an offboard data processor to extract data relevant to the mission, and a set of fusion modules for recursively associating sensor reports, tracking targets, and classifying targets. These modul ...

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 ...

Investigation of failed composite components requires tress analysis to assess their structural integrity. Currently there exist no general-purpose software packages for composite structural analysis that are accessible to failure investigators who are not experts in these types of analysis. The proposed research and development effort will fill this void with a flexible user friendly, PC-based ...

This Phase I SBIR will develop a general purpose probabilistic finite element analysis system, ProFEA, that allows designers to perform probabilistic finite element analysis in a graphical environment that is completely familiar and similar to modern deterministic FEA. We have developed an innovative architecture that takes advantage of emerging file exchange and database standards (I ...