14,802 research outputs found

    Thermal control of space vehicles Patent

    Get PDF
    Passive thermal control coating on aluminum foil laminate for inflatable spacecraft surface

    Shielding of Space Vehicles by Magnetic Fields

    Get PDF
    Spacecraft shielding by magnetic field

    Robust control of flexible space vehicles with minimum structural excitation: On-off pulse control of flexible space vehicles

    Get PDF
    Both feedback and feedforward control approaches for uncertain dynamical systems (in particular, with uncertainty in structural mode frequency) are investigated. The control objective is to achieve a fast settling time (high performance) and robustness (insensitivity) to plant uncertainty. Preshaping of an ideal, time optimal control input using a tapped-delay filter is shown to provide a fast settling time with robust performance. A robust, non-minimum-phase feedback controller is synthesized with particular emphasis on its proper implementation for a non-zero set-point control problem. It is shown that a properly designed, feedback controller performs well, as compared with a time optimal open loop controller with special preshaping for performance robustness. Also included are two separate papers by the same authors on this subject

    Minimum weight shield synthesis for space vehicles

    Get PDF
    Minimum weight proton shield synthesis for space vehicle

    Optical tracking mount Patent

    Get PDF
    Tracking mount for laser telescope employed in tracking large rockets and space vehicles to give information regarding azimuth and elevatio

    Review of solid propellants for space exploration

    Get PDF
    Solid propellants for space vehicles and spacecraft fuel application

    Investigation of spacecraft coatings

    Get PDF
    Literature review provides compilation of properties of coating materials used for external application on space vehicles. Attention is given to absorptance-emittance data and experimental spectral reference curves

    Considerations of electron beam propagation from space vehicles

    Get PDF
    Theoretical analysis of electron beam array propagation from spacecraf

    Computer programs for shielding problems in manned space vehicles

    Get PDF
    Computer programs for shielding problems in manned space vehicles - proton penetration code
    corecore