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  • Spacecraft Propulsion and Power  (3)
  • Spacecraft Design, Testing and Performance  (2)
  • 1
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    MSFC's Advanced Space Propulsion Formulation Task (2012)
    In:  CASI
    Details
    Publication Date: 2019-07-19
    Description: In NASA s Fiscal Year 2012, a small project was undertaken to provide additional substance, depth, and activity knowledge to the technology areas identified in the In-Space Propulsion Systems Roadmap, Technology Area 02 (TA-02), as created under the auspices of the NASA Office of the Chief Technologist (OCT). This roadmap was divided into four basic groups: (1) Chemical Propulsion, (2) Non-chemical Propulsion, (3) Advanced (TRL〈3) Propulsion Technologies, and (4) Supporting Technologies. The first two were grouped according to the governing physics. The third group captured technologies and physic concepts that are at a lower TRL level. The fourth group identified pertinent technical areas that are strongly coupled with these related areas which could allow significant improvements in performance. There were a total of 45 technologies identified in TA-02, and 25 of these were studied in this formulation task. The goal of this task was to provide OCT with a knowledge-base for decisionmaking on advanced space propulsion technologies and not waste money by unintentionally repeating past projects or funding the technologies with minor impacts. This formulation task developed the next level of detail for technologies described and provides context to OCT where investments should be made. The presentation will begin with the list of technologies from TA-02, how they were prioritized for this study, and details on what additional data was captured for the technologies studied. Following this, some samples of the documentation will be provided, followed by plans on how the data will be made accessible.
    Keywords: Spacecraft Propulsion and Power
    Type: M12-2246 , 19th Advanced Space Propulsion Workshop; Nov 27, 2012 - Nov 29, 2012; Huntsville, AL; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    MSFC's Advanced Space Propulsion Formulation Task (2012)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: No abstract available
    Keywords: Spacecraft Propulsion and Power
    Type: M12-2274 , 19th Advanced Space Propulsion Workshop; Nov 27, 2012 - Nov 29, 2012; Huntsville, AL; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Ares I-X Flight Evaluation Tasks in Support of Ares I Development (2010)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: NASA s Constellation Program successfully launched the Ares I-X Flight Test Vehicle on October 28, 2009. The Ares I-X flight was a development flight test that offered a unique opportunity for early engineering data to impact the design and development of the Ares I crew launch vehicle. As the primary customer for flight data from the Ares I-X mission, the Ares Projects Office established a set of 33 flight evaluation tasks to correlate fight results with prospective design assumptions and models. Included within these tasks were direct comparisons of flight data with pre-flight predictions and post-flight assessments utilizing models and modeling techniques being applied to design and develop Ares I. A discussion of the similarities and differences in those comparisons and the need for discipline-level model updates based upon those comparisons form the substance of this paper. The benefits of development flight testing were made evident by implementing these tasks that used Ares I-X data to partially validate tools and methodologies in technical disciplines that will ultimately influence the design and development of Ares I and future launch vehicles. The areas in which partial validation from the flight test was most significant included flight control system algorithms to predict liftoff clearance, ascent, and stage separation; structural models from rollout to separation; thermal models that have been updated based on these data; pyroshock attenuation; and the ability to predict complex flow fields during time-varying conditions including plume interactions.
    Keywords: Spacecraft Design, Testing and Performance
    Type: IAC-10-D2.6.6 , NF1676L-11307 , 61st International Astronautical Congress; Sep 27, 2010 - Oct 01, 2010; Prague; Czech Republic
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Ares I-X Flight Test Vehicle Similitude to the Ares I Crew Launch Vehicle (2008)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The Ares I-X Flight Test Vehicle is the first in a series of flight test vehicles that will take the Ares I Crew Launch Vehicle design from development to operational capability. The test flight is scheduled for April 2009, relatively early in the Ares I design process so that data obtained from the flight can impact the design of Ares I before its Critical Design Review. Because of the short time frame (relative to new launch vehicle development) before the Ares I-X flight, decisions about the flight test vehicle design had to be made in order to complete analysis and testing in time to manufacture the Ares I-X vehicle hardware elements. This paper describes the similarities and differences between the Ares I-X Flight Test Vehicle and the Ares I Crew Launch Vehicle. Areas of comparison include the outer mold line geometry, aerosciences, trajectory, structural modes, flight control architecture, separation sequence, and relevant element differences. Most of the outer mold line differences present between Ares I and Ares I-X are minor and will not have a significant effect on overall vehicle performance. The most significant impacts are related to the geometric differences in Orion Crew Exploration Vehicle at the forward end of the stack. These physical differences will cause differences in the flow physics in these areas. Even with these differences, the Ares I-X flight test is poised to meet all five primary objectives and six secondary objectives. Knowledge of what the Ares I-X flight test will provide in similitude to Ares I as well as what the test will not provide is important in the continued execution of the Ares I-X mission leading to its flight and the continued design and development of Ares I.
    Keywords: Spacecraft Design, Testing and Performance
    Type: IAC-08-D2.6.7 , 59th International Astronautical Congress; Sep 29, 2008 - Oct 03, 2008; Glasgow; United Kingdom
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Advanced Development Projects for Constellation From The Next Generation Launch Technology Program Elements (2005)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: When United States President George W. Bush announced the Vision for Space Exploration in January 2004, twelve propulsion and launch system projects were being pursued in the Next Generation Launch Technology (NGLT) Program. These projects underwent a review for near-term relevance to the Vision. Subsequently, five projects were chosen as advanced development projects by NASA s Exploration Systems Mission Directorate (ESMD). These five projects were Auxiliary Propulsion, Integrated Powerhead Demonstrator, Propulsion Technology and Integration, Vehicle Subsystems, and Constellation University Institutes. Recently, an NGLT effort in Vehicle Structures was identified as a gap technology that was executed via the Advanced Development Projects Office within ESMD. For all of these advanced development projects, there is an emphasis on producing specific, near-term technical deliverables related to space transportation that constitute a subset of the promised NGLT capabilities. The purpose of this paper is to provide a brief description of the relevancy review process and provide a status of the aforementioned projects. For each project, the background, objectives, significant technical accomplishments, and future plans will be discussed. In contrast to many of the current ESMD activities, these areas are providing hardware and testing to further develop relevant technologies in support of the Vision for Space Exploration.
    Keywords: Spacecraft Propulsion and Power
    Type: IAC-05-D2.5.08 , 56th International Astronautical Congress; Oct 17, 2005 - Oct 22, 2005; Fukuoka; Japan
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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