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A REALISTIC DETERMINATION OF THE MANUFACTURING TOLERANCES ON THE DIMENSIONS OF THE VARIOUS ELEMENTS IN A ROLLING BEARING IS PROPOSED THROUGH COMPUTER MODELING OF THE DYNAMIC PERFORMANCE OF THE BEARING AS FUNCTION OF THE GEOMETRICAL ANAMOLIES. THE BEARING MODEL CONSISTS OF A REAL TIME SIMULATION OF THE BEARING PERFORMANCE ASA OBTAINED BY INTEGRATING THE DIFFERENTIAL EQUATIONS OF MOTION OF EACH BEAR ...

THE RAPID DEVELOPMENT OF BIOTECHNOLOGY HAS MADE IT IMPERATIVE TO DETECT BIOHAZARDS WHICH MAY BE ENCOUNTERED INI STRATEGIC AREAS OF AIR FORCE OPERATIONS. THE RELEASE OF BIOLOGICAL/CHEMICAL WARFARE AGENTS IN A DEEP BASE WOULD PRESENT A SIGNIFICANT THREAT. IN PHASE I OF THIS PROPOSAL, WE WILL DEVELOP A QUALITATIVE METHOD OF DETECTING LOW CONCENTRATIONS OF AIRBORNE CHEMICAL AND BIOLOGICAL AGENTS. THIS ...

AN ELECTROCHEMICAL APPROACH TO THE DESTRUCTION OF AIRBORNE CHEMICAL AND BIOLOGICAL WARFARE AGENTS IN A DEEP BASE IS PRESENTED IN THIS PHASE I PROPOSAL. THE PROPOSED ELECTROCHEMICAL FLOW SYSTEM WILL DECONTAMINATE THE AIR STREAM IN THE ANOLYTE AND THE CATHOLYTE SOLUTIONS BY OXIDATION, REDUCTION AND/OR SOLVOLYSIS. THE SCOPE AND LIMITATIONS OF THIS METHOD WILL BE DEMONSTRATED BY CONVERSION OF SEVERAL ...

EXISTING MULTIPLE-AIRCRAFT AIR COMBAT SIMULATION MODELS GENERALLY RELY ON SIMPLIFIED TACTICS BASED ON RELATIVE POSITIONS. THE OBJECTIVE OF THE PHASE I STUDY IS TO DETERMINE THE POTENTIAL OF INNOVATIVE TECHNIQUES FOR BUILDING A MORE REALISTIC TACTICS GENERATION MODULE ADAPTIVE TO EXISTING SIMULATION MODELS. THE APPROACH INVOLVES: (1) CLARIFICATION OF THE OVERALL AIR BATTLE MANAGEMENT STRUCTURE, WIT ...

THE PROJECT WILL DEFINE THE CAPABILITIES AND DETERMINE THE COST TO DEVELOP A TRANSPORTABLE, REALTIME DYNAMIC SIMULATOR SYSTEM WITH THE FOLLOWING FEATURES: A) DENSE, PULSE-BY-PULSE ENVIRONMENT; B) C3 SYSTEM MODELS FOR BOTH ATTACKER AND DEFENDER FORCES; C) INTERACTIVE PARTICIPATION OF UP TO E.G., 6 PILOTS TO CONTROL THEIR AIRCRAFT, ASSOCIATED AVIONICS AND MISSILE SYSTEMS; D) INTERACTIVE PARTICIPATIO ...

CURRENT EXTINGUISHMENT TECHNIQUES CAN UTILIZE DRY CHEMICAL AND AQUEOUS FOAMS TO KNOCKDOWN A POOL FIRE IN AN AIRCRAFT FIRE INCIDENT. AS NEW FUEL IS ADDED, DUE TO SPILLS, REIGNITION AND FLASHBACK IS POSSIBLE. MECHANISMS BASED ON COMBUSTION REACTION AND VAPORIZATION PROCESSES WILL BE SCREENED TO DETERMINE CANDIDATE MECHANISMS TO PREVENT OR NEUTRALIZE FUEL ENTERING THE FIRE ZONE. BASED ON MECHANISMS D ...

AIRPLANE FOREBODY DESIGN HAS CONSISTENTLY DEMONSTRATED SIGNIFICANT INFLUENCES ON BOTH STATIC AND ROTATIONAL AERODYNAMICS AND, CONSEQUENTLY, ON HIGH ANGLE-OF-ATTACK FLIGHT CHARACTERISTICS AND SPIN BEHAVIOR. AN EXTENSIVE HIGH ANGLE-OF-ATTACK DATA BASE FOR MILITARY CONFIGURATIONS HAS BEEN GENERATED USING THE ROTARY BALANCE AT THE NASA LANGLEY 20-FOOT SPIN TUNNEL. THIS DATA BASE WILL BE UTILIZED TO CO ...

THE AIR FORCE NEEDS HIGH POWER DENSITY RESERVE BATTERIES FOR AIRBORNE APPLICATIONS WHICH MUST PROVIDE PULSES OF POWER AT RATES OF OVER 10,000 W/# DURING A LIFETIME OF 300 SECONDS. AN AVERAGE POWER DENSITY REQUIREMENT OF 50 WH/# MAKES THIS A CHALLENGING TASK. SMALL SILVER-ZINC BATTERIES HAVE BEEN REPORTED TO YIELD THIS LEVEL OF POWER IN SINGLE BURSTS, BUT AT ONLY HALF THE ENERGY DENSITY. THE ENCLOS ...

A LITERATURE SEARCH AND AN INDUSTRY SURVEY WILL BE CARRIED OUT IN ORDER TO OBTAIN POTENTIAL MATERIALS, FORMULATIONS ANDCOMMERCIAL PRODUCTS TO PREVENT THE MIGRATION OF ORGANIC LIQUIDS AND MOISTURE. THE INFORMATION RECEIVED WILL BE CO COLLECTED, ANALYZED AND SUMMARIZED TO PROVIDE THE AIR FORCE WITH A DETAILED, COMPREHENSIVE ASSESSMENT OF THE MATERIALS AVAILABLE TO ACCOMPLISH THE MISSION. SAMPLES OF ...

A SEMI-EMPERICAL APPROACH TO MODELING THE TRACTION BEHAVIOR OF LUBRICANTS IN CONCENTRATED CONTACTS IS PROPOSED. THE MODELING CONSISTS OF POSTULATING THE FORM OF THE LUBRICANT CONSTITUTIVE EQUATION IN THE HIGH-PRESSURE CONTACT ZONE AND ESTIMATING THE VARIOUS COEFFICIENTS BY CARRYING OUT A NONLINEAR LEAST SQUARES ANALYSIS OF THE AVAILABLE TRACTION DATA. THE EFFECTIVENESS OF THE MODELING APPROACH IS ...