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

Now showing items 241-260 of 3613

    • NACA-RM-L9K11 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      A wing-flaw investigation is being made to determine the characteristics of conventional low-speed aerodynamic balances at transonic speeds. In this investigation a typical sweptback airfoil-flap combination ...

    • NASA-TN-D-4705 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1968
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Vibration tests and analysis of thin cylindrical shells with and without longitudinal stiffeners.
      Subject(s) : ALUMINUM ALLOYS , CYLINDRICAL SHELLS , METAL SHELLS , OSCILLATING CYLINDERS , REINFORCED SHELLS , SHELL STABILITY , THIN WALLED SHELLS , VIBRATION TESTS , VIBRATIONAL STRESS ,

    • NASA-LLIS-0076 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      While performing an area walkdown, a supervisor, noticed what looked like paint chips on the pick board in the forward RCS area. After further investigation it was determined ...
      Subject(s) : Facilities , Flight Equipment , Ground Operations , Launch Vehicle ,

    • NACA-TM-774 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1935
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The analysis of the stresses in the sheet and stiffeners is predicated upon the direction of the wrinkles, particularly the tensile stresses (principal stresses). This analysis and the calculation of stresses after buckling ...

    • NASA-LLIS-1007 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Environmental Regulations Resulting in Manufacturing Process Changes for RSRM.
      Subject(s) : Aerospace Safety Advisory Panel , Energy , Environment , Ground Operations , Hazardous/Toxic Waste/Materials , Policy & Planning , Safety & Mission Assurance , Test & Verification ,

    • NACA-TN-2689 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Results of a low-speed wind-tunnel investigation to determine the effect of high-lift devices on the static lateral stability derivatives and the yawing derivatives of an untapered 45 degrees sweptback wing are presented. ...
      Subject(s) : COMPLETE , DAMPING , DERIVATIVES , DIRECTIONAL , EDGE , FLAPS , LATERAL , LEADING , STABILITY , STATIC , SWEEP , TRAILING , WINGS ,

    • NASA-LLIS-0635 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On June 29, 1999, personnel were removing a Grayloc blind hub that had been used to temporarily isolate a portion of the gaseous hydrogen system. As a result of a sudden ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Ground Equipment , Pressure Vessels , Test Facility ,

    • NASA-LLIS-1467 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A set of prioritized requirements should be considered in the decision process for selecting an accident investigation software tool, or tools, to meet the varying needs of users.
      Subject(s) : Accident Investigation , Administration/Organization , Computers , Configuration Management , Information Technology/Systems , NASA Standards , Policy & Planning , Safety & Mission Assurance , Security ,

    • NASA-LLIS-0865 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      One of two truck driver employees of Contractor's Cargo Company, was lifted or hurled, from the top of a flatbed trailer parked on the NASA-Ames Vertical Takeoff and Landing ...
      Subject(s) : Administration/Organization , Aircraft , Ground Equipment , Ground Operations , Hardware , Lifting Devices , Test & Verification , Test Article , Test Facility , Transportation ,

    • NASA-CR-132548 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1974
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The behavior of thin square perforated plates under the action of uniform shear deformation is studied experimentally and analytically using finite element analysis. Elastic Shear buckling strength is established as a ...
      Subject(s) : ANALYSIS , BUCKLING , ELASTIC , ELEMENT , FINITE , FORCES , LOADS , METHOD , PERFORATED , PLATES , SHEAR , STRENGTH , STRESS , THIN ,

    • NASA-LLIS-5916 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: On 20 May 2008, a team of Structures Technicians (STs) were preparing Launch Pad 39A for the launch of Space Shuttle STS-124. Part of the launch pad preparation involved covering bare-metal components on the MLP Pedestals ...
      Subject(s) : Additional Categories.Accident Investigation , Additional Categories.Facilities , Additional Categories.Human Factors , Safety and Mission Assurance.Maintenance ,

    • NASA-LLIS-0210 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A qualified high voltage electrician was injured when he cut into a 34,500 volt cable that was thought to have been de-energized. The cable was located in a cable tunnel ...
      Subject(s) : Industrial Operations , Safety & Mission Assurance ,

    • NASA-LLIS-0390 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Problems due to waveform irregularities and the resultant induced noise on the Voyager Spacecraft system interfaces were not validated until 500 hours of system testing had been completed. ...
      Subject(s) : Spacecraft , Test & Verification ,

    • NASA-LLIS-0194 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The space shuttle system presently includes an autoland system that provides automated guidance capable of navigating the orbiter to the selected landing runway.
      The ...
      Subject(s) : Flight Equipment , Flight Operations , Human Factors ,

    • NACA-TN-667 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1938
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The method of operators is used in the application of nonuniform-lift theory to problems of airplane dynamics. The method is adapted to the determination of the lift under prescribed conditions of motion or to the determination ...

    • NASA-TN-D-5971 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1970
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Longitudinal aerodynamic characteristics of twin-turbofan supersonic transport with nacelles mounted under wings
      Subject(s) : AERODYNAMIC , AIRCRAFT , CHARACTERISTICS , CHARTS , DATA , GRAPHS , LONGITUDINAL , NACELLES , STABILITY , STRUTS , SUBSONIC , TABLES , TRANSPORT , TUNNELS , TURBOFAN , WIND ,

    • NACA-TN-846 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1942
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The solution of von Karman's fundamental equations for large deflections of plates is presented for the case of a simply supported rectangular plate under combined edge compression and lateral loading. Numerical solutions ...
      Subject(s) : ANALYSIS , BENDING , DEFLECTION , NUMERICAL , PLATES , RECTANGULAR ,

    • NASA-LLIS-1214 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Mission teams tend to be re-assigned to other priorities before a complete post-flight or post-mission follow-up are completed, causing delays and loss of important ...
      Subject(s) : Flight Operations , Ground Operations , Human Resources & Education , Payloads , Policy & Planning , Range Operations , Risk Management/Assessment , Safety & Mission Assurance ,

    • NASA NPR 2800.1 REV B 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      This document establishes requirements and responsibilities for information technology (IT) Management relative to the policy set forth in NASA Policy Directive (NPD) 2800. IT is defined as any ...

    • NASA-HDBK-4002 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This Handbook is intended to describe conditions under which spacecraft charging might be an issue, generally explain why the problem exists, list typical design solutions, and provide an introduction to the process by ...