14,802 research outputs found
Thermal control of space vehicles Patent
Passive thermal control coating on aluminum foil laminate for inflatable spacecraft surface
Shielding of Space Vehicles by Magnetic Fields
Spacecraft shielding by magnetic field
Robust control of flexible space vehicles with minimum structural excitation: On-off pulse control of flexible space vehicles
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
Minimum weight proton shield synthesis for space vehicle
Optical tracking mount Patent
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
Solid propellants for space vehicles and spacecraft fuel application
Investigation of spacecraft coatings
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
Theoretical analysis of electron beam array propagation from spacecraf
Computer programs for shielding problems in manned space vehicles
Computer programs for shielding problems in manned space vehicles - proton penetration code
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