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  • Weitere Quellen  (9)
  • FACILITIES, RESEARCH, AND SUPPORT  (3)
  • SPACE VEHICLES  (2)
  • AIRCRAFT  (1)
  • ASTRODYNAMICS  (1)
  • BIOTECHNOLOGY  (1)
  • COMPUTERS  (1)
  • 1970-1974  (9)
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  • Weitere Quellen  (9)
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  • 1
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    Hard radiation environment simulation (1970)
    In:  CASI
    Details
    Publikationsdatum: 2005-11-27
    Beschreibung: Test methods for simulating hard radiation environment of optical telescopes in earth orbit
    Schlagwort(e): FACILITIES, RESEARCH, AND SUPPORT
    Materialart: OPT. TELESCOPE TECHNOL. 1970; P 759-766
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 2
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    A standard language for test and ground operations (1971)
    In:  Other Sources
    Details
    Publikationsdatum: 2016-06-07
    Beschreibung: Development of standard language for test and ground operations involving space shuttle ground support equipment
    Schlagwort(e): FACILITIES, RESEARCH, AND SUPPORT
    Materialart: Proc. of the Space Shuttle Integrated Electron. Conf., Vol. 2; p 355-358
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 3
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    Evaluation of a stall-flutter spring-damper pushrod in the rotating control system of a CH-54B helicopter (1974)
    In:  CASI
    Details
    Publikationsdatum: 2016-06-07
    Beschreibung: Results of a design and flight test program conducted to define the effect of rotating pushrod damping on stall-flutter induced control loads are presented. The CH-54B helicopter was chosen as the test aircraft because it exhibited stall induced control loads. Damping was introduced into the CH-54B control system by replacing the standard pushrod with spring-damper assemblies. Design features of the spring-damper are described and the results of a dynamic analysis are shown which define the pushrod stiffness and damping requirements. Flight test measurements taken at 47,000 lb gross weight with and without the damper are presented. The results indicate that the spring-damper pushrods reduced high frequency, stall-induced rotating control loads by almost 50%. Fixed system control loads were reduced by 40%. Handling qualities in stall were unchanged, as expected.
    Schlagwort(e): AIRCRAFT
    Materialart: NASA. Ames Res. Center Rotorcraft Dyn.; p 223-232
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 4
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    Zero gravity tissue-culture laboratory (1972)
    In:  CASI
    Details
    Publikationsdatum: 2016-06-07
    Beschreibung: Hardware was developed for performing experiments to detect the effects that zero gravity may have on living human cells. The hardware is composed of a timelapse camera that photographs the activity of cell specimens and an experiment module in which a variety of living-cell experiments can be performed using interchangeable modules. The experiment is scheduled for the first manned Skylab mission.
    Schlagwort(e): FACILITIES, RESEARCH, AND SUPPORT
    Materialart: NASA. Lyndon B. Johnson Space Center The 7th Aerospace Mech. Symp.; p 81-89
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 5
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    The MSFC UNIVAC 1108 EXEC 8 simulation model (1972)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: A model is presented which simulates the MSFC Univac 1108 multiprocessor system. The hardware/operating system is described to enable a good statistical measurement of the system behavior. The performance of the 1108 is evaluated by performing twenty-four different experiments designed to locate system bottlenecks and also to test the sensitivity of system throughput with respect to perturbation of the various Exec 8 scheduling algorithms. The model is implemented in the general purpose system simulation language and the techniques described can be used to assist in the design, development, and evaluation of multiprocessor systems.
    Schlagwort(e): COMPUTERS
    Materialart: NASA-CR-61379
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 6
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    Outer planet mission guidance and navigation for spinning spacecraft (1974)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: The orbit determination accuracies, maneuver results, and navigation system specification for spinning Pioneer planetary probe missions are analyzed to aid in determining the feasibility of deploying probes into the atmospheres of the outer planets. Radio-only navigation suffices for a direct Saturn mission and the Jupiter flyby of a Jupiter/Uranus mission. Saturn ephemeris errors (1000 km) plus rigid entry constraints at Uranus result in very high velocity requirements (140 m/sec) on the final legs of the Saturn/Uranus and Jupiter/Uranus missions if only Earth-based tracking is employed. The capabilities of a conceptual V-slit sensor are assessed to supplement radio tracking by star/satellite observations. By processing the optical measurements with a batch filter, entry conditions at Uranus can be controlled to acceptable mission-defined levels (+ or - 3 deg) and the Saturn-Uranus leg velocity requirements can be reduced by a factor of 6 (from 139 to 23 m/sec) if nominal specified accuracies of the sensor can be realized.
    Schlagwort(e): ASTRODYNAMICS
    Materialart: NASA-CR-136764
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 7
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    The effects of trajectory characteristics on scientific objectives for major planetary orbiters. (1972)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: Outline of specific solutions in the areas of attitude control, interplanetary trajectory parameters, and orbital configurations of major planetary spacecraft. It is shown that inertia wheel supplementation to a three-axis, stabilized attitude control system will substantially reduce propellant weight and attitude jet firings, especially when considering three-year orbital lifetimes as well as interplanetary trip times of several years. Eight interplanetary trajectory parameters including the earth injection energy and the declination of the launch asymptote are shown for a 1980 earth launch mission to Jupiter. The effects of the interplanetary trajectory parameters on the deboost velocities and resulting orbits about Jupiter are summarized. Orbital mode and science interfaces are defined, and a celestial mechanics experiment independent of earth tracking is briefly outlined.
    Schlagwort(e): SPACE VEHICLES
    Materialart: Journal of the Astronautical Sciences; 20; Sept
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 8
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    Mishaps with Oxygen in NASA Operations (1971)
    In:  CASI
    Details
    Publikationsdatum: 2019-08-14
    Beschreibung: Data from a substantial number of oxygen mishaps obtained from NASA and contractor records are presented. Information from several Air Force records, concerning oxygen accidents involving aircraft operations, are also included. Descriptions of the mishaps and their causes, for both liquid and gaseous oxygen in ground test facilities and space vehicle systems, are given. A number of safety regulations aimed at reducing the accident probability is discussed. The problems related to material compatibility and materials testing are considered, and the limited information on factors affecting the ignition of materials in oxygen is presented. In addition, details are given of several of the accident/incidents listed in order to define the combination of conditions causing the mishap. In addition to propellant system mishaps, accident/incidents which occurred in space and ground system structures were included, as well as those in electrical systems, ground support facilities, ordnance, and related operations.
    Schlagwort(e): BIOTECHNOLOGY
    Materialart: NASA-TM-X-67953 , E-6604 , Oxygen Compressors and Pumps Symp.; Nov 09, 1971 - Nov 11, 1971; Atlanta
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 9
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    Reliability inputs to Mariner 9 data explosion (1974)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: This paper describes the prelaunch and post-launch reliability functions which contributed to the success of the Mariner 9 spacecraft. Examples are included to illustrate how each reliability activity was a vital part of each phase of the project. Prelaunch reliability functions included: (1) establishing, negotiating, and monitoring system and subsystem requirements, (2) participating in spacecraft system and subsystem design/hardware reviews, (3) monitoring preparation of failure mode effects and criticality analyses (FMECA), (4) establishing and managing a problem failure reporting (PFR) system for the spacecraft and its support equipment, (5) monitoring electronic parts activities, and (6) participating in spacecraft reviews. Particular emphasis is placed on mission operations reliability assurance activities, which included: (1) spacecraft problem/failure reporting, (2) managing an integrating failure reporting system which covered all mission operations activities, (3) real-time analysis of spacecraft anomalies, and (4) risk assessment.
    Schlagwort(e): SPACE VEHICLES
    Materialart: Annual Reliability and Maintainability Symposium; Jan 29, 1974 - Jan 31, 1974; Los Angeles, CA
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
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