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  • Composite Materials  (3)
  • Aircraft Propulsion and Power  (2)
  • 2000-2004  (5)
  • 1935-1939
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  • 1
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    An Assessment of the State-of-the-Art in the Design and Manufacturing of Large Composite Structures for Aerospace Vehicles (2001)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: The results of an assessment of the state-of-the-art in the design and manufacturing of large composite structures are described. The focus of the assessment is on the use of polymeric matrix composite materials for large airframe structural components. such as those in commercial and military aircraft and space transportation vehicles. Applications of composite materials for large commercial transport aircraft, general aviation aircraft, rotorcraft, military aircraft. and unmanned rocket launch vehicles are reviewed. The results of the assessment of the state-of-the-art include a summary of lessons learned, examples of current practice, and an assessment of advanced technologies under development. The results of the assessment conclude with an evaluation of the future technology challenges associated with applications of composite materials to the primary structures of commercial transport aircraft and advanced space transportation vehicles.
    Keywords: Composite Materials
    Type: NASA/TM-2001-210844 , L-18070 , NAS 1.15:210844
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Technology Roadmap for Dual-Mode Scramjet Propulsion to Support Space-Access Vision Vehicle Development (2002)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Third-generation reusable launch vehicle (RLV) systems are envisioned that utilize airbreathing and combined-cycle propulsion to take advantage of potential performance benefits over conventional rocket propulsion and address goals of reducing the cost and enhancing the safety of systems to reach earth orbit. The dual-mode scramjet (DMSJ) forms the core of combined-cycle or combination-cycle propulsion systems for single-stage-to-orbit (SSTO) vehicles and provides most of the orbital ascent energy. These concepts are also relevant to two-stage-to-orbit (TSTO) systems with an airbreathing first or second stage. Foundation technology investments in scramjet propulsion are driven by the goal to develop efficient Mach 3-15 concepts with sufficient performance and operability to meet operational system goals. A brief historical review of NASA scramjet development is presented along with a summary of current technology efforts and a proposed roadmap. The technology addresses hydrogen-fueled combustor development, hypervelocity scramjets, multi-speed flowpath performance and operability, propulsion-airframe integration, and analysis and diagnostic tools.
    Keywords: Aircraft Propulsion and Power
    Type: AIAA Paper 2002-5188 , 11th AIAA/AAAF International Space Planes and Hypersonic Systems; Sep 24, 2002 - Oct 04, 2002; Orleans; France
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    A Revolution in the Making: Advances in Materials That May Transform Future Exploration Infrastructures and Missions (2001)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The NASA Strategic Plan identifies the long-term goal to provide safe and affordable space access, orbital transfer, and interplanetary transportation capabilities to enable research, human exploration, and the commercial development of space; and to conduct human and robotic missions to planets and other bodies in our solar system. Numerous scientific and engineering breakthroughs will be required to develop the technology necessary to achieve this goal. Critical technologies include advanced vehicle primary and secondary structure, radiation protection, propulsion and power systems, fuel storage, electronics and devices, sensors and science instruments, and medical diagnostics and treatment. Advanced materials with revolutionary new capabilities are an essential element of each of these technologies. This paper discusses those materials best suited for aerospace vehicle structure and highlights the enormous potential of one revolutionary new material, carbon nanotubes.
    Keywords: Composite Materials
    Type: AIAA Paper 2001-4679 , AIAA Space 2001 Conference and Exposition; Aug 28, 2001 - Aug 30, 2001; Albuquerque, NM; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    A Survey of Emerging Materials for Revolutionary Aerospace Vehicle Structures and Propulsion Systems (2002)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: The NASA Strategic Plan identifies the long-term goal of providing safe and affordable space access, orbital transfer, and interplanetary transportation capabilities to enable scientific research, human, and robotic exploration, and the commercial development of space. Numerous scientific and engineering breakthroughs will be required to develop the technology required to achieve this goal. Critical technologies include advanced vehicle primary and secondary structure, radiation protection, propulsion and power systems, fuel storage, electronics and devices, sensors and science instruments, and medical diagnostics and treatment. Advanced materials with revolutionary new capabilities are an essential element of each of these technologies. A survey of emerging materials with applications to aerospace vehicle structures and propulsion systems was conducted to assist in long-term Agency mission planning. The comprehensive survey identified materials already under development that could be available in 5 to 10 years and those that are still in the early research phase and may not be available for another 20 to 30 years. The survey includes typical properties, a description of the material and processing methods, the current development status, and the critical issues that must be overcome to achieve commercial viability.
    Keywords: Composite Materials
    Type: NASA/TM-2002-211664 , L-18188 , NAS 1.15:211664
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 5
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    Hypersonic Airbreathing Propulsion: An Aerodynamics, Aerothermodynamics, and Acoustics Competency White Paper (2002)
    In:  CASI
    Details
    Publication Date: 2019-07-10
    Description: This White Paper examines the current state of Hypersonic Airbreathing Propulsion at the NASA Langley Research Center and the factors influencing this area of work and its personnel. Using this knowledge, the paper explores beyond the present day and suggests future directions and strategies for the field. Broad views are first taken regarding potential missions and applications of hypersonic propulsion. Then, candidate propulsion systems that may be applicable to these missions are suggested and discussed. Design tools and experimental techniques for developing these propulsion systems are then described, and approaches for applying them in the design process are considered. In each case, current strategies are reviewed and future approaches that may improve the techniques are considered. Finally, the paper concentrates on the needs to be addressed in each of these areas to take advantage of the opportunities that lay ahead for both the NASA Langley Research Center and the Aerodynamic Aerothermodynamic, and Aeroacoustics Competency. Recommendations are then provided so that the goals set forth in the paper may be achieved.
    Keywords: Aircraft Propulsion and Power
    Type: NASA/TM-2002-211951 , L-18110 , NAS 1.15:211951
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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