1–19 von 19 Ergebnissen
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    A Generic Guidance and Control Structure for Six-Degree-of-Freedom Conceptual Aircraft Design

    Cotting, M. Christopher / Cox, Timothy H. | NTRS | 2005
    A control system framework is presented for both real-time and batch six-degree-of-freedom simulation. This framework allows stabilization ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Cybernetics, Artificial Intelligence And Robotics

    A Generic Inner-Loop Control Law Structure for Six-Degree-of-Freedom Conceptual Aircraft Design

    Cox, Timothy H. / Cotting, Christopher | NTRS | 2005
    A generic control system framework for both real-time and batch six-degree-of-freedom (6-DOF) simulations is presented. This framework uses ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Cybernetics, Artificial Intelligence And Robotics

    An Overview of Wind-Driven Rovers for Planetary Exploration

    Hajos, Gregory A. / Jones, Jack A. / Behar, Alberto et al. | NTRS | 2005
    propulsion is the use of wind power. Recent studies have shown potential for wind driven craft for exploration of Mars, Titan and Venus. The power of ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Lunar And Planetary Science And Exploration

    Application of a Real-Fluid Turbomachinery Analysis to Rocket Turbopump Geometries

    Dorney, Daniel J. / Sondak, Douglas L. / Marcu, Bogdan | NTRS | 2005
    both incompressible and compressible flow fields. In this study, the code has been applied to the analysis of inducer and impeller geometries ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Fluid Mechanics And Thermodynamics

    Autonomous Soaring for Improved Endurance of a Small Uninhabited Air Vehicle

    Allen, Michael J. | NTRS | 2005
    atmosphere called thermals or updrafts. Glider pilots and birds commonly use updrafts to improve range, endurance, or cross-country speed. This ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Aircraft Design, Testing And Performance

    CARS Temperature and Species Concentration Measurements in a Supersonic Combustor with Normal Injection

    Tedder, S. A. / OByrne, S. / Danehy, P. M. et al. | NTRS | 2005
    between this 90 degree angle fuel injection case and a 30 degree fuel injection case previously presented at the 2004 Reno AIAA Meeting. ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Inorganic, Organic And Physical Chemistry

    Engineering the Future of Full-Scale Propulsion Testing

    Ryan, H. M. / Solano, W. / Holland, R. et al. | NTRS | 2001
    major test facilites for large-scale propulsion devices, and summarizes the varied nature of the recent test projects conducted at the Stennis ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Propulsion And Power

    ISS ECLSS Technology Evolution for Exploration

    Carrasquillo, Robyn | NTRS | 2005
    regenerative oxygen generation and water early 1990's. While they are generally meeting, or exceeding requirements for supporting the ISS crew, lessons ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Man/System Technology And Life Support

    Lessons Learned in the High-Speed Aerodynamic Research Programs of the NACA/NASA

    Spearman, M. Leroy | NTRS | 2004
    compressed and there are changes in the density, pressure and temperature of the air. These compressibility effects change the aerodynamic ...
    Verlag: NASA National Aeronautics and Space Administration

    Lifted Partially Premixed Flames in Microgravity

    Lock, Andrew J. / Ganguly, Ranjan / Puri, Ishwar K. et al. | NTRS | 2004
    Lifted Double and Triple flames are established in the UIC-NASA Partially Premixed microgravity rig. The flames examined in this paper are ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Inorganic, Organic And Physical Chemistry

    Lunar Contour Crafting: A Novel Technique for ISRU-Based Habitat Development

    Khoshnevis, Behrokh / Bodiford, Melanie P. / Burks, Kevin H. et al. | NTRS | 2005
    1. Habitat Structures at MSFC is one element of the In-Situ Fabrication and Repair (ISFR) Program: ISFR develops technologies for ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Design, Testing And Performance

    New Air-Launched Small Missile (ALSM) Flight Testbed for Hypersonic Systems

    Bui, Trong T. / Lux, David P. / Stenger, Mike et al. | NTRS | 2006
    conceived to help address the lack of quick-turnaround and cost-effective hypersonic flight research capabilities. The Phoenix ALSM testbed results ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Design, Testing And Performance

    Numerical Modeling of Pulse Detonation Rocket Engine Gasdynamics and Performance

    NTRS | 2003
    This paper presents viewgraphs on the numerical modeling of pulse detonation rocket engines (PDRE), with an emphasis on the Gasdynamics and ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Fluid Mechanics And Thermodynamics

    Photovoltaic Power for Future NASA Missions

    Landis, Geoffrey / Bailey, Sheila G. / Lyons, Valerie J. | NTRS | 2002
    Recent advances in crystalline solar cell technology are reviewed. Dual-junction and triple-junction solar cells are presently available ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Spacecraft Propulsion And Power

    Revalidation of the NASA Ames 11-by 11-Foot Transonic Wind Tunnel with a Commercial Airplane Model

    Kmak, Frank J. / Hudgins, M. / Hergert, D. et al. | NTRS | 2001
    , productivity, and reliability. Wind tunnel tests to demonstrate the readiness of the tunnel for a return to production operations included an ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Research And Support Facilities (Air)

    Some Aviation Growth Events

    Spearman, M. Leroy | NTRS | 2002
    influence of the war itself; the events during the post-war years including the establishment of aeronautical research laboratories; and the ...
    Verlag: NASA National Aeronautics and Space Administration

    State Estimation of Main Rotor Flap and Lead-Lag Using Accelerometers and Laser Transducers on the RASCAL UH-60 Helicopter

    Fletcher, Jay W. / Chen, Robert T. N. / Strasilla, Eric et al. | NTRS | 1995
    Modern rotorcraft flight control system designs which promise to yield high vehicle response bandwidth and good gust rejection can benefit ...
    Verlag: NASA National Aeronautics and Space Administration
    Schlagwörter: Aircraft Design, Testing And Performance

    The Contributions of Vincent Justus Burnelli

    Wood, Richard M. | NTRS | 2003
    A review of the contributions and the professional life of Vincent Justus Burnelli are presented. Burnelli was an inventor, aircraft ...
    Verlag: NASA National Aeronautics and Space Administration

    Wind Tunnel Measurements and Calculations of Aerodynamic Interactions Between Tiltrotor Aircraft

    Johnson, Wayne / Yamauchi, Gloria K. / Derby, Michael R. et al. | NTRS | 2002
    Wind tunnel measurements and calculations of the aerodynamic interactions between two tiltrotor aircraft in helicopter mode are presented ...
    Verlag: NASA National Aeronautics and Space Administration