Award Data

MILITARY SYSTEMS DEVELOPMENT EFFORTS ARE IN PROGRESS WHICH INVOLVE THE SEPARATION OF ONE VEHICLE FROM ANOTHER IN AREAS WHERE AERODYNAMIC FORCES MAY HAVE IMPORTANT EFFECTS. THESE EFFORTS INCLUDE ADVANCED MILITARY SPACECRAFT CAPABILITY AND ADVANCED AEROCONFIGURED MISSILES. SAFE SEPARATION OF THE VEHICLES IN THE FIRST FEW SECONDS OF FLIGHT IS ESSENTIAL TO THE DEVELOPMENT OF THESE CONCEPTS AND YET THE ...

DIMENSIONAL GAUGING, WITH THE CURRENT GAUGE BLOCK BASED TECHNIQUES, IS RESPONSIBLE FOR OVER 50% OF THE COST OF PRODUCING PRECISION, HIGHSPEED AIRCRAFT BEARING COMPONENTS. IN THIS APPLICATION, THE GAUGING PROCESS IS SUBJECT TO ERRORS FROM BOTH THE INHERENT LIMITS OF THE GAUGE BLOCKS AND FROM THE MANUAL PROCESS OF "WRINGING" THE BLOCKS TO PRODUCE VARIOUS REFERENCE LENGTHS. THE COST OF PRODUCING BEAR ...

EXPERIMENTAL OBSERVATIONS OBTAINED DURING A RECENT RESEARCH PROGRAM AT FLOW INDUSTRIES HAVE SHOWN THAT A LEADING EDGE VORTEX ON A DELTA WING AT CONSTANT ANGLE OF ATTACK CONSISTS OF A SERIES OF DISCRETE SMALLER VORTICES. THESE VORTICES PAIR, MUCH THE SAME AS IN A FREE SHEAR LAYER. A DEVICE IS PROPOSED TO MODULATE THE SHEDDING AND THE PAIRING OF THE DISCRETE VORTICES BY MECHANICALLY OR ACOUSTICALLY ...

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TO OBTAIN SPACECRAFT POWER LEVELS GREATER THAN ABOUT 7 KW FOR GEOSYNCHRONOUS ORBIT, IT WILL BE NECESSARY TO REDUCE THE WEIGHT OF THE POWER SYSTEM, PARTICULARLY THE BATTERIES WHICH ARE ESPECIALLY HEAVY. IT IS NOT CLEAR AT THIS TIME WHICH BATTERY SYSTEM IS BEST SUITED TO THE NEEDS OF AN ADVANCED ENERGY STORAGE SYSTEM FOR SATELLITES, FOR ONLY REASONABLY WELL-DEVELOPED SYSTEMS HAVE BEEN CONSIDERED FOR ...

A COMPREHENSIVE APPROACH TO THE DIGITIZATION, PROCESSING, AND DISPLAY OF AFGL ALL-SKY IMAGES IS PROPOSED. WE FIRST PLAN TO EVALUATE AND COMPARE TWO METHODS OF PRODUCING DIGITAL REPRESENTATIONS OF THE IMAGES: VIDEO FRAME-GRABBING AND DIGITAL SCANNING. ACCURACY, RESO LUTION, NOISE LEVELS, COST AND COVENIENCE WILL BE CONSIDERED. AS PART OF THIS EFFORT, WE WILL BUILD UP A SMALL LIBRARY OF DIGITIZED AL ...

THIS PROPOSAL IS A JOINT EXPERIMENTAL, THEORTICAL, AND NUMERICAL STUDY OF GRAVITY WAVE - CRITICAL LAYER INTERACTIONS. THESE INTERACTIONS ARE IMPORTANT IN UNDERSTANDING ATMOSPHERIC DYNAMICS BECAUSE OF STRESS DIVERGENCE AND MIXING THAT OCCUR AS A GRAVITY WAVE APPROACHES ITS CRITICAL LEVEL. THE OBJECTIVES OF PHASE I ARE TO GENERATE STEADY-STATE, STRATIFIED SHEAR FLOWS IN THE LABROATORY BY THE WAVE MO ...

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