Award Data

ABARIS PROPOSES AN EXPERT SYSTEM TO AID THE AVIATION PLANNER AND COST ESTIMATOR IN DEALING WITH THE IMPACT OF NEW MATERIALS AND TECHNOLOGY AVAILABLE FOR THE DESIGN AND SUBSEQUENT MANUFACTURE OF NEW AIRCRAFT. THE NEW ADVANCED COMPOSITES; GRAPHITE AND KEVLAR FIBERS, EPOXY AND BISMALEIMIDE RESINS, ETC., OFFER SIGNIFICANT WEIGHT REDUCTIONS AND OTHER OPERATIONAL ADVANTAGES, BUT REQUIRE DIFFERENT DESIGN ...

ACETYLENE-TERMINATED RESINS REPRESENT ONE CLASS OF POLYMERS HAVING GREAT POTENTIAL UTILITY IN THE AEROSPACE INDUSTRY. THIS TYPE OF RESIN POSSESSES DESIRABLE PHYSICAL PROPERTIES SUCH AS TEMPERATURE, MOISTURE AND SHEAR RESISTANCE. A NECESSARY PRECURSOR FOR SYNTHESIS OF THESE RESINS IS PHENYLACETYLENE, WHICH IS DIFFICULT AND EXPENSIVE TO MANUFACTURE THROUGH CHEMICAL MEANS. THE PHASE I RESEARCH PROGRA ...

THIS PROPOSAL ADDRESSES THE DEVELOPMENT OF AN AUTOMATED ALIGNMENT MEASURING SYSTEM FOR THE HYPERVELOCITY RANGE/TRACK G FACILITY, LOCATED AT ARNOLD ENGINEERING DEVELOPMENT CENTER. THE OBJECTIVES OF THIS RESEARCH AND DEVELOPMENT EFFORT ARE TO EVALUATE METHODS FOR DEVELOPING A SYSTEM THAT CAN RAPIDLY AND COST-EFFECTIVELY INSPECT THE TEST TRACK. THIS WILL REQUIRE AN IN-DEPTH UNDERSTANDING OF THE ENVIR ...

IT HAS BEEN OBSERVED IN BOTH SMALL-SCALE EXPERIMENTS AND FULL-SCALE FUEL SYSTEM SIMULATORS THAT JET FUELS, WHEN HEATED, UNDERGO CHEMICAL REACTIONS THAT EVENTUALLY RESULT IN SEDIMENT/DEPOSIT FORMATION. THUS, THE THERMAL STABILITY OF JET FUELS HAS THE DELETERIOUS EFFECT OF CAUSING FUEL SYSTEM MALFUNCTIONS. THIS SITUATION IS ALSO POSSIBLE IN SUPERSONIC AIRCRAFT, WHERE AN INCREASE IN THE METAL SKIN TE ...

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Fiber coupled mid-infrared semiconductor lasers provide potential reduction in life cycle costs for tactical military systems compared to current lasers. The proposed work will investigate the stability of semiconductor lasers in military environments for reliable insertion into mid-infrared transmitting fiber optics. The overall project will demonstrate stable operation of a moderate power, mul ...

The DoD requires new sources of eye safe, short pulse, laser radiation to enable the next generation laser radar (LADAR) seekers. Conventional eye safe laser sources using diode-pumped solid-state laser (DPSSL) and optical parametric oscillator (OPO) technologies have difficulties to meet the packaging requirements and to operate with constant pulse width at variable repetition rate. Also, the e ...

Fiber coupled mid-infrared and infrared semiconductor lasers provide potential technology for proactive infrared countermeasures systems, potentially reducing life cycle costs for these tactical military systems compared to current lasers. Research will be conducted to explore the feasibility of developing low loss infrared transmitting chalcogenide glass fiber optics. The proposed work will als ...

Three-dimensional woven and braided fiber architectures provide important advantages to composites, including suppression of delamination, high damage tolerance, improved through-the-thickness properties, simplicity and cost-effectiveness of manufacturing complex composite structural components. However, in order to diversify applications and reach high volumes of utilization of these materials in ...