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  • Other Sources  (1,831)
  • SPACECRAFT DESIGN, TESTING AND PERFORMANCE  (1,015)
  • SPACECRAFT PROPULSION AND POWER  (816)
  • 1980-1984  (1,831)
Collection
  • Other Sources  (1,831)
Source
Keywords
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Year
  • 1
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    Overview of large space systems/propulsion interactions (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: Large space structure characteristics, antenna controller design, the attitude control system, mission grouping, propulsion system/large space structure interactions, structural mass impact for start transient effects, box truss multiple thrust point effects, and large space structure/propulsion issues are illustrated.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: NASA. Lewis Research Center Large Space Systems(Propulsion Interactions; p 1-6
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Automation technology for aerospace power management (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The growing size and complexity of spacecraft power systems coupled with limited space/ground communications necessitate increasingly automated onboard control systems. Research in computer science, particularly artificial intelligence has developed methods and techniques for constructing man-machine systems with problem-solving expertise in limited domains which may contribute to the automation of power systems. Since these systems perform tasks which are typically performed by human experts they have become known as Expert Systems. A review of the current state of the art in expert systems technology is presented, and potential applications in power systems management are considered. It is concluded that expert systems appear to have significant potential for improving the productivity of operations personnel in aerospace applications, and in automating the control of many aerospace systems.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: IECEC ''82; Seventeenth Intersociety Energy Conversion Engineering Conference; Aug 08, 1982 - Aug 12, 1982; Los Angeles, CA
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Systems engineering challenges of the Space Shuttle (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: Problems encountered during the Space Shuttle's development that were due to the unique configuration of the vehicle are discussed. While conventional rocket space vehicles have been symmetric, greatly simplifying the analysis and integration of constituent elements, the Space Shuttle's combination of a winged orbiter with side-mounted solid rocket boosters and a large propellant tank presented a more complex system for the analysis and testing of ascent flight control, propulsion system, aerothermodynamics and structural dynamics. Attention is given first and second stage flight operations, return-to-launch-site, abort-once-around and abort-to-orbit mission modes, propulsion system and propulsion test development, and the aerothermodynamics of the external propellant tank and Orbiter.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: IAF PAPER 81-4 , International Astronautical Congress; Sept. 6-12, 1981; Rome; Italy
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Thermal protection in space technology (1982)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The provision of heat protection for various elements of space flight apparata has great significance, particularly in the construction of manned transport vessels and orbital stations. A popular explanation of the methods of heat protection in rocket-space technology at the current stage as well as in perspective is provided.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-TM-77145 , NAS 1.15:77145
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Satellite Power Systems /SPS/ - Overview of system studies and critical technology (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: Systems studies and critical technology issues for the development and evaluation of Satellite Power Systems (SPS) for the photovoltaic generation of electrical energy and its transmission to earth are reviewed. Initial concept studies completed in 1976 and system definition studies initiated in the same year have indicated the technical feasibility of SPS and identified challenging issues to be addressed as part of the SPS Concept Development and Evaluation Program. Systems considered in the study include photovoltaic and solar thermal power conversion configurations employing klystron or solid state microwave generators or lasers for power transmission, and power transmission options, system constructability and in-orbit and ground operations. Technology investigations are being performed in the areas of microwave power transmission, structure/controls interactions and the behavior of key materials in the space/SPS environment. Favorable results have been obtained in the areas of microwave phase distribution and phase control, dc-RF conversion, antenna radiating element, and no insurmountable problems have been discovered in any of the investigations to date.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AAS PAPER 80-084 , Goddard Memorial Symposium; March 27, 28, 1980; Washington, D. C.
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Electric propulsion comes of age (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The article examines several aspects of electric propulsion. It is shown that because the process and rate of energy transfer in electric systems are quite different from those of chemical propulsion systems, performance and orbit mechanics are intimately related. Attention is given to the several discrete subelements of an electric primary propulsion system, showing that while they have straightforward operating principles, they present challenges in implementation as working hardware. Finally, discussion covers applications which include a range of interplanetary and near-earth missions.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: vol. 33; May 1980
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    NASA technology program overview (1980)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Various aspects of space power and electric propulsion are illustrated. The following topics are outlined: Photovoltaic power conversion; power management and distribution; chemical energy conversion and storage; thermal to electric conversion; advanced energetics; and synchronous energy technology.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: NASA. Lewis Space Flight Center Synchronous Energy Technol.; p 9-13
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Photovoltaic outlook from the NASA viewpoint (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The NASA photovoltaic outlook for space applications focuses on the needs for increasing the specific power (W/kg), establishing radiation damage control, and reducing the specific cost ($/W). In each of these areas the technology requirements and potential impediments are presented. Technology trends and forecasts are also discussed.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: Photovoltaic Specialists Conference; May 12, 1981 - May 15, 1981; Kissimmee, FL
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Without a table of ranks: Presenting the creators of Radio-1 and Radio-2 (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The design and operation of ham radio operator satellites is discussed. Major emphasis is placed on the personalities involved in the project.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: Without Tables of Ranks and the Iskra Student Design Bureau (NASA-TM-76277); p 1-23
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    NASA TECHNICAL REPORTS
  • 10
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    Review of the Tri-Agency Space Nuclear Reactor Power System Technology Program (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The Space Nuclear Reactor Power System Technology Program designated SP-100 was created in 1983 by NASA, the U.S. Department of Defense, and the Defense Advanced Research Projects Agency. Attention is presently given to the development history of SP-100 over the course of its first year, in which it has been engaged in program objectives' definition, the analysis of civil and military missions, nuclear power system functional requirements' definition, concept definition studies, the selection of primary concepts for technology feasibility validation, and the acquisition of initial experimental and analytical results.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: IECEC ''84: Advanced energy systems - Their role in our future; Aug 19, 1984 - Aug 24, 1984; San Francisco, CA
    Format: text
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    NASA TECHNICAL REPORTS
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