NASA - National Aeronautics and Space Administration (NASA): Recent submissions

Now showing items 1841-1860 of 3613

    • NASA-SP-318 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1973
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The proceedings of a conference of liquid lubricant technology are presented. The subjects discussed are: (1) requirements and functions of liquid lubricants, (2) mineral oils, (3) greases, (4) theory of rheology, (5) ...
      Subject(s) : CHEMICAL PROPERTIES , CONFERENCES , FRICTION REDUCTION , LUBRICATING OILS , LUBRICATION , LUBRICATION SYSTEMS , PHYSICAL PROPERTIES , WEAR TESTS ,

    • NACA-RM-L8I03 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Contains results of tunnel tests to determine effects of various combinations of split flaps, slats, and nose slats on the stability characteristics of a tapered 37.5 degree sweptback wing of aspect ratio 3 in straight and ...
      Subject(s) : COMPLETE , DAMPING , DERIVATIVES , DIRECTIONAL , FLAPS , LATERAL , SLATS , SLOTS , STABILITY , STATIC , SWEEP , WINGS ,

    • NASA-LLIS-0622 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Cassini: At the beginning of Assembly, Test, and Launch Operations (ATLO), vibration testing of the massive Cassini spacecraft was performed using facility test equipment that was barely up ...
      Subject(s) : acoustic test , dynamics test , Hardware Fabrication and Test , Management and Planning , Policy & Planning , System Integration and Test , system safety , Test & Verification , Test Facility , test instrumentation , test planning , test-induced failure ,

    • NASA-LLIS-1452 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Pre-planning to include set of draft processes for data and configuration management developed in advance and ready for implementation might improve accident investigation start-up efficiency.
      Subject(s) : Accident Investigation , Administration/Organization , Computers , Configuration Management , Information Technology/Systems , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NASA-LLIS-0850 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Protect the receptacles/plug ends of demated electrical connections with covers provided by manufacturer or with generic plastic caps or if covers are unavailable, leave in downward facing position.

    • NACA-TN-2629 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A previous analysis of turbulent flow and heat transfer in smooth tubes with variable fluid properties was modified in order to be applicable to air which has a Prandtl number slightly less than unity (O.73]. In order over ...

    • NASA-CR-1457 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1969
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Handbook for structural stability analysis of sandwich structures under typical loading conditions encountered in aerospace applications
      Subject(s) : AEROSPACE , ANALYSIS , BENDING , BODIES , BUCKLING , CHARTS , COMPRESSION , CYLINDRICAL , ENGINEERING , FLAT , FORMS , GRAPHS , HANDBOOKS , PLATES , SANDWICH , SHELLS , STABILITY , STRESS , STRUCTURAL , STRUCTURES , TESTS , TORSION ,

    • NACA-RM-A53B06 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Current interest in the turbine-propeller type of power plant for moderately high-speed long-range airplanes has led to a need for data concerning the high-speed characteristics of propeller-spinner-cowling ...

    • NASA-LLIS-4218 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Component and system leakage measurement techniques should be optimized to provide consistent leak check data accurate enough to verify acceptability of the component and system in the most cost efficient manor possible.
      Subject(s) : Ground Operations , Parts , Materials , & Processes , Systems Engineering and Analysis - Level II/III requirements definition , Test & Verification ,

    • NASA-LLIS-0457 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During repressurization of a test chamber, ammonia in a test article heat exchanger froze resulting in rupture of the exchanger. The rupture caused pressure to build up ...
      Subject(s) : Emergency Preparedness , Facilities , Hazardous/Toxic Waste/Materials , Risk Management/Assessment , Safety & Mission Assurance , Test Facility ,

    • NASA-LLIS-0182 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Because of movement and vibration, debris shields provide inadequate protection against dropped or falling objects. Vibration and movement on workstands causes debris ...
      Subject(s) : Facilities , Ground Equipment , Ground Operations , Hardware ,

    • NACA-TN-419 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1932
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The lift, drag, and center of pressure characteristics of a model of the Fowler variable-area wing were measured in the NACA 7 by 10 foot wind tunnel. The Fowler wing consists of a combination of a main wing and an extension ...

    • NASA-LLIS-1203 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During the 1 A/R and 2A ISS assembly missions there were a number of occasions where funnies and/or problems were discovered, and the solution of some of these required ...
      Subject(s) : Administration/Organization , External Relations , Human Resources & Education , Policy & Planning ,

    • NACA-TM-722 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1933
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The transverse momentum of the deflected air stream to be absorbed is divided between the intermediate and outside walls, so that the pressure increase on each wall is much smaller and the danger of separation is diminished. ...

    • NASA-LLIS-0825 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use reliability predictions derived from block diagram analyses during the design phase of the hardware development life cycle to analyze design reliability; perform sensitivity analyses; ...

    • NACA-TN-2232 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Experimental investigations of swept box beams (references 1 and 2) have shown that the stresses and distortions in a swept wing can be appreciably different in character from those that would exist if the root were normal ...
      Subject(s) : BEAMS , BOX - BENDING & TORSION , BEAMS , BOX - SHEAR LAG , LOADS - BEAMS , BOX , STRESSED SKIN - BEAMS , BOX , WING SPARS , BOX - BENDING & TORSION , WINGS , SWEPTBACK - STRENGTH ,

    • NASA-LLIS-0035 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      NASA standard initiators (NSI) are used to ignite a charge of boron potassium nitrate pellets, which begin the solid rocket booster (SRB) ignition sequence. These pellets ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Explosives Handling , Flight Equipment , Ground Equipment , Ground Operations , Hardware , Hazardous/Toxic Waste/Materials , Industrial Operations , Launch Process , Launch Vehicle , Safety & Mission Assurance ,

    • NASA-LLIS-0991 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Two ruptures of burst discs and an over pressurization of the cryostat helium tank occurred on the ground during integration and test of SIRTF. Precautions for planning and conducting hazardous ...
      Subject(s) : Cryogenic Systems , Facilities , facility safety , Ground Equipment , Ground Operations , GSE maintenance , Hardware , Human Factors , Human Resources & Education , Industrial Operations , Pressure Vessels , QA oversight , Safety & Mission Assurance , Test & Verification , test equipment maintenance , Test Facility , test facility operations , test oversight , test plan ,

    • NASA-LLIS-0583 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During a regional public service power outage, an unplanned facility power loss occurred during system level thermal-vacuum test of the Mars Global Surveyor. This resulted in a slight inflow ...
      Subject(s) : Energy , Test & Verification , Test Facility ,

    • NASA-LLIS-1404 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The existence of Agency-wide standards for work time limits for personnel engaged in critical flight operations has apparently not been widely communicated across NASA. The standards need to ...
      Subject(s) : Flight Operations , Ground Operations , Human Factors , NASA Standards , Safety & Mission Assurance , Standard ,