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THIS PROGRAM WILL DEVELOP A NEW COMPUTER CONTROLLED STEREOLITHOGRAPHY PROCESS FOR THE MANUFACTURE OF REINFORCED CERAMIC COMPOSITE PARTS. PHASE I WILL DEMONSTRATE A WORKING SYSTEM THAT WILL DIRECTLY READ A COMPUTER CAD DRAWING OF A SIMPLE COMPONENT AND THEN GENERATE THE ACTUAL GREEN COMPOSITE PART. PHASE I WORK WILL INCLUDE DEVELOPMENT AND FABRICATION OF SYSTEM HARDWARE AND SOFTWARE, DEVELOPMENT OF ...

CURRENT DESIGNS OF AIR FORCE HARD TARGET PENETRATING WEAPONS PLACE THE FUZE WELL IN THE TAIL OF THE WEAPON. THIS LOCATION CAUSES SOME DIFFICULTY FOR A SMART FUZE ALGORITHM TO DISCRIMINATE BETWEEN FLEXIBLE BODY WEAPON RESPONSE AND THE LOADING EFFECTS CAUSED BY THE PENETRATION OF SOIL OR CONCRETE. THE AFT LOCATION ALSO LEADS TO CATASTROPHIC FUZE FAILURE WHEN THE WEAPON EXPERIENCES A "TAIL SLAP." CHA ...

THE PRIMARY TECHNIQUES FOR CONDUCTING VULNERABILITY ANALYSES OF MOBILE OR FIXED TARGETS ARE (1) PROBABILISTIC STUDIES USING SIMPLIFIED METHODOLOGIES TO MODEL THE ENTIRE SYSTEM OR PROBLEM AND (2) FIRST PRINCIPLES FINITE ELEMENT OR HYDROCODE CALCULATIONS THAT MODEL DETAILED PHYSICAL INTERACTIONS AND STUDY A SPECIFIC PROBLEM OR PORTION OF A PROBLEM. BOTH TYPES OF ANALYSES REQUIRE A DETAILED TARGET MO ...

FUTURE COMBAT VEHICLES WILL EMPLOY MODULAR ARMOR PROTECTION SYSTEMS THAT CAN BE CHANGED TO MEET DIFFERENT THREAT LEVELS. THESE ADVANCED ARMOR UNITS WILL BE MOUNTED AND DISMOUNTED FROM THE BASIC VEHICLE STRUCTURE, AS NEEDED TO MEET PROTECTION REQUIREMENTS. THE OBJECTIVE OF THIS EFFORT IS TO DEVELOP INNOVATIVE ATTACHMENT CONCEPTS AND METHODS FOR MOUNTING THE MODULAR ARMOR PROTECTION UNITS TO THE BAS ...

An approach is presented to solve both the data fusioin problem, and the space object model building requirement for the Air Force Phillips Laboratory. Artificial neural network (ANN) technology provides a number of tools that form the basis of this proposal and the foundtion for the solution to the real-time data fusion problem. ANNs are a proven technology that offer a powerful, naturally parall ...

This project addresses the development of software technologies to collect, analyze, and display test data from adaptive optics control systems. Innovative technologies are devised which allow efficient processing of data from multiple-input/multiple-output (MIMO) systems involving deformable mirrors, electronic signal processing, wavefront sensors, actuator arrays, and other physical elements whi ...

There is a need for a reliable High Energy Laser Wavefront Analyzer (HELWA) to be used for beam quality testing at the Army's High Energy Laser Systems Test Facility (HELSTF). Accurate HEL wavefront measurements are critical to HEL device performance evaluation. Current devices are inflexible and difficult to maintain due to size, complexity, and a dependence of high precision moving parts. This e ...

AstroPower is developing a two-junction monolithic tandem solar cell composed of (AlxGa1-x)0.51In.49P lattice matched to GaAs for use as the top cell in a three-junction, two-terminal tandem stack. This tunable bandgap material system is capable of current matching, at 2.03eV, in a two-junction monolithic tandem solar cell two terminal design of (AlxGa1-x)0.51In0.49P/GaAs yielding a best case pred ...

ASTROPOWER IS PROPOSING THE DEVELOPMENT OF AN ULTRA-LIGHTWEIGHT, HIGH PERFORMANCE, THIN LIGHT TRAPPING GAAS SOLAR CELL FOR ADVANCED SPACE POWER SYSTEMS. A THIN DEVICE LEADS TO HIGHER PERFORMANCE IN TERMS OF OPEN CIRCUIT VOLTAGE, RADIATION RESISTANCE, AND SPECIFIC POWER. IN A THIN DEVICE, THE INCORPORATION OF LIGHT TRAPPING TO EXTEND THE OPTICAL PATH LENGTH PERMITS GREATER CURRENT GENERATIC THAN CA ...