Award Data

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 PHASE I EFFORT, THE GOAL IS TO DETERMINE THE FEASIBILITY OF CONDUCTING ACCELERATED CORROSION TESTING OF VEHICLES BY SIMULATING 5-10-15 YEARS OF FIELD LIFE IN A COMPUTER CONTROLLED ENVIRONMENT SIMULATION CHAMBER. THE DIFFERENT REQUIREMENTS OF THE CHAMBER, THE TYPES OF ENVIRONMENTS PRESENT IN THE DIFFERENT GEOGRAPHICAL REGIONS, THE CORRELATION BETWEEN ACCELERATED CHAMBER TESTS AND FIELD COND ...

IN THIS PHASE I EFFORT, THE GOAL IS TO DETERMINE THE FEASIBILITY OF CONDUCTING ACCELERATED CORROSION TESTING OF VEHICLES BY SIMULATING 5-10-15 YEARS OF FIELD LIFE IN A COMPUTER CONTROLLED ENVIRONMENT SIMULATION CHAMBER. THE DIFFERENT REQUIREMENTS OF THE CHAMBER, THE TYPES OF ENVIRONMENTS PRESENT IN THE DIFFERENT GEOGRAPHICAL REGIONS, THE CORRELATION BETWEEN ACCELERATED CHAMBER TESTS AND FIELD COND ...

IN RECENT YEARS THE CORROSIVITY OF THE TACTICAL WHEELED VEHICLE ENVIRONMENT HAS BECOME MORE SEVERE DUE TO INCREASED USE OF ROAD SALTS, INCREASED ATMOSPHERIC POLLUTANTS (SO(2) AND NO(X)), AND CHANGES IN CLIMATIC CONDITIONS IN SELECTED GEOGRAPHIC REGIONS OF THE WORLD. THE COMBINED EFFECTS OF THE ABOVE CONDITIONS AND MARINE SALTS HAVE SIGNIFICANTLY DECREASE THE LIFE EXPECTANCY OF SELECTED VEHICLES AN ...

CONFIRMING THE ACCURAY OF LIFE-PROTECTING INDUSTRIAL HYGIENE TEST EQUIPMENT OR SIMULATING MILITARY ENVIRONMENTS OFTEN REQUIRES SOPHISTICATED AND CUMBERSOME TEST CHAMBERS DEPENDENT ON COMPLICATED CALCULATIONS. THE CALIBRATION OF SUCH TEST EQUIPMENT MAY BE EASILY COMPROMISED BY OPERATOR ERROR WHERE INVOLVED CALCULATIONS ARE USED AND COMPLICATED INTERCONNECTIONS AND VALVES ARE EMPLOYED. WE PROPOSE TO ...

A quality simulation which allows a user to simulate the acoustic emissions in a multi-source environment and then study the effects these conditions have on a set of acoustic sensors would be of great value. As acoustic sensors technology continues to advance with robust algorithms for detection, tracking and identification as well as high performance hardware providing real-time operation, thes ...

GENERATOR USED PRIMARY POWER SYSTEMS ARE THE ACHILLES HEEL OF TACTICAL COMMAND AND CONTROL SYSTEMS, FIELD HOSPITALS, AND OTHER TACTICAL SUPPORT FACILITIES. THEY ARE NOISY AND PRONE TO FAILURE AT THE MOST CRITICAL TIMES. TACTICAL POWER USING SYSTEMS HAVE DIFFERENT POWER DUTY CYCLES AND POWER FACTORS. SOME ARE PREDICTABLE; OTHER TOTALLY RANDOM; AND MANY MUST BE DEPENDED UPON IN THE "HEAT OF THE BATT ...

MEASUREMENTS OF ATMOSPHERIC HUMIDITY IN COLD REGIONS OR WINTER FIELD ENVIRONMENTS ARE DIFFICULT USING EXISTING METEOROLOGICAL INSTRUMENTATION. IN GENERAL, PRESENT FIELD INSTRUMENTS FOR UNTENDED HUMIDITY MEASUREMENTS ARE PLAGUED BY LOW SENSITIVITY AND DRIFTS IN CALIBRATION, RESULTING IN POOR ACCURACY AND LOW RELIABILITY. WE PROPOSE A NEW INSTRUMENTATION CONCEPT FOR FIELD MEASUREMENT OF HUMIDITY, BA ...

LARGE QUANTITIES OF TOXIC HYDROGEN CHLORIDE (HCL) GAS ARE EMITTED DURING SOME MISSILE LAUNCHES, POSING A SERIOUS SAFETY HAZARD TO LAUCH SITE PERSONNEL. EXISTING INSTRUMENTATION FOR MEASURING HCL CONCENTRATIONS DOES NOT HAVE ADEQUATE TIME RESPONSE OR SENSITIVITY, AND IS SUSCEPTIBLE TO INTERFERENCES FROM OTHER MISSILE EXHAUST GASES. WE PROPOSE A NEW INSTRUMENTATION CONCEPT FOR LAUNCH SITE MEASURMENT ...

AN INNOVATIVE, COMPACT AND FAST DIRECTIONAL LASER SENSOR BASED ON THE LATEST ACHIEVEMENTS IN PHOTODETECTION TECHNOLOGY IS PROPOSED. THE LASER SENSING DEVICE USES A SPHERE LENS AS A DIRECTION IDENTIFIER, WITH A WIDE (+OR-90 DEG) FIELD OF VIEW. AN INCIDENT LASER BEAM IS FOCUSED BY THE SPHERE LENS ONTO A HEMISPHERICAL, AMORPHOUS SILICON, POSITION SENSITIVE DETECTOR LOCATED AT OR NEAR THE FOCAL SURFAC ...