NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 2701-2720 of 3613
-
NASA-LLIS-0504
Abstract: Description of Driving Event:
On January 15, 1991, a failure occurred in the 8' Transonic pressure tunnel during testing of a model wing with attached flap. During the test run, the flap peeled away ...Subject(s) : Ground Operations , Test Facility , -
NASA-LLIS-0293
Abstract: Description of Driving Event:
A transducer failed a mass spectrometer leak check. The serial number of the transducer was vibroetched onto the sealing surface causing the leak. The design drawing ...Subject(s) : Configuration Management , Hardware , Parts Materials & Processes , -
NASA-TN-D-7921
Abstract: Because the potential flow suction along the leading and side edges of a planform can be used to determine both leading- and side-edge vortex lift, the present investigation was undertaken to apply the vortex-lattice method ...Subject(s) : AERODYNAMIC , BODIES , CHARACTERISTICS , EDGES , FLOW , LATTICE , LATTICES , LEADING , LIFTING , MATHEMATICS , METHOD , PLANFORMS , SEPARATED , SHARP , SUBSONIC , SUCTION , VORTEX , VORTICES , -
NASA-LLIS-1339
Abstract: Description of Driving Event:
On March 20, 2003, a 128,500 lb. LOX dewar was being transported from the Kennedy Space Center (KSC) to the Cape Canaveral Air Force Station (CCAFS). A commercial ...Subject(s) : Standard , Transportation , -
NACA-RM-L8L29
Abstract: INTRODUCTION
The advantages of low-aspect-ratio pointed wings for high-speed flight have been outlined by Jones in reference 1. Extensive theoretical investigations of the stability characteristics of triangular wings ... -
NACA-WR-L-710
Abstract: A technique of testing wind-tunnel powered models has been developed as a result of experience gained in the investigation of the static longitudinal and lateral-stability and control characteristics of several powered ... -
NASA-LLIS-0354
Abstract: Abstract:
The ATMOS instrument suffered damage to its optical system as a result of excess humidity due to a climate control failure. Provide indicators and alarms for environmentally sensitive hardware, ...Subject(s) : Environment , Test Facility , -
NASA-LLIS-0102
Abstract: Description of Driving Event:
A vacuum pump isolation valve burst at the Pad B high pressure gas storage battery. The cause of the incident has been attributed to the seepage of pressure from the wheel ...Subject(s) : Facilities , Ground Equipment , Hardware , Industrial Operations , Pressure Vessels , -
NASA-LLIS-1108
Abstract: Description of Driving Event:
Thorough Risk Assessment and Testing Program for the Crew Return Vehicle (CRV).Subject(s) : Aerospace Safety Advisory Panel , Policy & Planning , Research & Development , Risk Management/Assessment , Test & Verification , -
NASA-LLIS-6536
Abstract: A specific analysis was required to be performed by a contractor in support of design, development, verification, and validation of ARES 1-X hardware. The Systems Engineering and Integration (SE&I) group of the prime ... -
NASA NPD 7620.1 REV I
Abstract: APPLICABILITY
a. This NPD applies to NASA Headquarters and NASA Centers, including Component Facilities.
b. For purposes of this directive, the term "project" also includes payloads. -
NASA-LLIS-0722
Abstract: Practice:
Design and fabricate space flight electrical harnesses to meet the minimum requirements of the GSFC Design and Manufacturing Standard for Electrical Harnesses. -
NACA-TR-540
Abstract: This report presents the results of tests of 209 simple wing-fuselage combinations made in the NACA variable-density wind tunnel to provide information regarding the effects of aerodynamic interference between wings and ... -
NASA-TR-R-50
Abstract: Approximations are presented for the thermodynamic and transport properties of high-temperature air. Compressibility, enthalpy, entropy, the specific heats, the speed of sound, the coefficients of viscosity and thermal ...Subject(s) : ACOUSTIC , AIR , COMPRESSIBILITY , CONDUCTIVITY , ENTHALPY , ENTROPY , HEAT , HIGH , NUMBER , PRANDTL , PROPERTIES , SPECIFIC , TEMPERATURE , THERMAL , THERMODYNAMIC , TRANSPORT , VELOCITY , VISCOSITY , -
NASA-LLIS-1516
Abstract: Abstract:
The final proposal for this effort was approximately 58% higher than government estimates despite the fact that government estimates were derived from X-43A actual costs and were considered ...Subject(s) : Communication Systems , Policy & Planning , Research & Development , -
NASA-LLIS-1806
Abstract: Abstract:
A July 2007 workshop attended by Constellation Program personnel traced the success of the Apollo Lunar Module designers to the NASA and contractor culture, Grumman's flat organization ...Subject(s) : Additional Categories.Configuration Management , Additional Categories.Flight Equipment , Additional Categories.Flight Operations , Additional Categories.Ground Equipment , Additional Categories.Ground Operations , Additional Categories.Hardware , Additional Categories.Independent Verification and Validation , Additional Categories.Launch Vehicle , Additional Categories.Mishap Reporting , Additional Categories.Payloads , Additional Categories.Risk Management/Assessment , Additional Categories.Safety & Mission Assurance , Engineering Design (Phase C/D).Lander Systems , Engineering Design (Phase C/D).Simulators and Training Systems , Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments , Integration and Testing , Mission Operations and Ground Support Systems.Lunar Operations , Mission Operations and Ground Support Systems.Mission control Planning , Mission Operations and Ground Support Systems.Training and simulation systems , Missions and Systems Requirements Definition.Configuration control and data management , Missions and Systems Requirements Definition.Crew operations and support concepts , Missions and Systems Requirements Definition.Mission concepts and life-cycle planning , Missions and Systems Requirements Definition.Planetary entry and landing concepts , Missions and Systems Requirements Definition.Vehicle concepts , Program Management.Acquisition / procurement strategy and planning , Program Management.Center distribution of programs and management activities , Program Management.Communications between different offices and contractor personnel , Program Management.Configuration and data management , Program Management.Contractor relationships , Program Management.Cross Agency coordination , Program Management.Risk management , Program Management.Role of civil service technical staff versus contractor staff , Safety and Mission Assurance.Configuration Change Control , Safety and Mission Assurance.Early requirements and standards definition , Safety and Mission Assurance.Product Assurance , Safety and Mission Assurance.Reliability , Systems Engineering and Analysis.Engineering design and project processes and standards , Systems Engineering and Analysis.Level II/III requirements definition , Systems Engineering and Analysis.Long term sustainability and maintenance planning , Systems Engineering and Analysis.Mission and systems trade studies , Systems Engineering and Analysis.Mission definition and planning , Systems Engineering and Analysis.Planning of requirements verification processes , -
NASA-LLIS-6148
Abstract: The Space Shuttle Orbiter aft hazardous gas grab bottles provided an indication of gas leak in specific locations in the Orbiter during ascent and data was obtained post mission. Future vehicles need to include real-time ...Subject(s) : 1.Cryogenic Systems , 1.Flight Operations , 1.Launch Systems , 1.Launch Vehicle , 1.Level II/III requirements definition , 1.Propulsion , 1.Spacecraft , 1.Vehicle concepts , -
NASA-TN-D-402
Abstract: There are basically two approaches to determining stresses that are due to concentrated loads applied to flexible frames which are supported by cylindrical shells. One is to make a complete redundant analysis of each ...Subject(s) : ANALYSIS , CYLINDRICAL , DATA , DISPLACEMENT , DISTRIBUTION , FORCES , LOADS , MATHEMATICAL , MODELS , MOMENT , NONUNIFORMITY , RADIAL , REINFORCED , SHELLS , STRESS , TABLES , -
NASA-CR-4004
Abstract: The integral conservation laws of fluid mechanics are used to assess the drag efficiency of lifting wings, both CTOL and various out-of-plane configurations. The drag-due-to-lift is separated into two major components: (1) ...Subject(s) : CONSERVATION LAWS , DRAG REDUCTION , FLUID MECHANICS , INDUCED DRAG , LIFT , LOAD DISTRIBUTION (FORCES) , REYNOLDS NUMBER , WING PLANFORMS , WINGLETS , -
NASA-LLIS-0461
Abstract: Description of Driving Event:
On 09 September 1993, at approximately 1853 hours, the construction safety office was notified of a mishap at the H-1 Test Stand Construction project at the intersection ...Subject(s) : Energy , Lifting Devices , Safety & Mission Assurance ,

درباره ما