A discussion of the stability requirements for a launch vehicle flight control system
Launch vehicle flight control system and relation to stability requirements and dynamic responses
Redus, J. R.↗
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Decoupling in the design and synthesis of multivariable control systems.
Time invariant linear control system decoupling using state variable feedback, determining synthesis procedure to obtain desired closed loop configurations
Falb, P. L.↗
Design and application of an adaptive tracking filter control system.
Adaptive tracking filter control system design and application to large flexible booster vehicles
Dupont, T. E.↗
A subliming solid reaction control system.
Subliming solid reaction control system design, operation and test for ATS
Routt, R. P.↗
Quasi-optimum design of an aircraft landing control system.
Quasi-optimum control law for aircraft landing control system design based on Friedland technique, evaluating effectiveness by computer simulation
Ling, C. K.↗
Analysis and verification of a spacecraft wide-angle attitude-control system
Wide angle attitude control system for spacecraft slewing through large angles
Dishman, B. H.↗
Space shuttle reaction control system requirements
Optimum reaction control system for space shuttle maximum payload capability
Pohl, H. O.↗
Control system for the 2-kWe to 15-kWe Brayton power system Final report
Engine control system design for 2 to 15 kWe Brayton power system for space stations
Source record↗
Analysis and optimization of a queueing model of a real-time computer control system
Real time computer control system queueing model to optimize preemptible and nonpreemptible job priority assignment
Schrage, L.↗
Analysis of a wheel-damped reaction boom control system
Hybrid satellite attitude control system deformation model, utilizing pivoted flexible boom with tip mass as actuator and inertia wheels to dampen gravity induced librations
Buckingham, A. G.↗
A control moment gyro fine attitude control system Final technical report
Control moment gyro fine attitude control system for spacecraft
Van Riper, R.↗
Study of an improved attitude control system
Development of attitude control system for orbiting space vehicles
Boland, J. S., III↗
Solar optical telescope dome control system Patent
Light sensitive control system for automatically opening and closing dome of solar optical telescope
Cashion, K. D.↗
Development of an algorithm for the stability analysis of a nonlinear precision attitude control system
Nonlinear precision attitude control system stability analysis algorithm based on quadratic Liapunov function
Chomas, A.↗
Design, fabrication and test of a trace contaminant control system
A trace contaminant control system was designed, fabricated, and evaluated to determine suitability of the system concept to future manned spacecraft. Two different models were considered. The load model initially required by the contract was based on the Space Station Prototype (SSP) general specifications SVSK HS4655, reflecting a change from a 9 man crew to a 6 man crew of the model developed in previous phases of this effort. Trade studies and a system preliminary design were accomplished based on this contaminant load, including computer analyses to define the optimum system configuration in terms of component arrangements, flow rates and component sizing. At the completion of the preliminary design effort a revised contaminant load model was developed for the SSP. Additional analyses were then conducted to define the impact of this new contaminant load model on the system configuration. A full scale foam-core mock-up with the appropriate SSP system interfaces was also fabricated.
Source record↗
Multiplexed battery-bypass control system
Cell-bypass control system senses low capacity cells before they overcharge or discharge. Relay automatically removes defective cell (when it is detected) from battery circuit. System shows promise for improving batteries in computer standby power systems, electric vehicles, and energy storage systems.
Bennett, J. C.↗
Investigation of the Multiple Method Adaptive Control (MMAC) method for flight control systems
The stochastic adaptive control of the NASA F-8C digital-fly-by-wire aircraft using the multiple model adaptive control (MMAC) method is presented. The selection of the performance criteria for the lateral and the longitudinal dynamics, the design of the Kalman filters for different operating conditions, the identification algorithm associated with the MMAC method, the control system design, and simulation results obtained using the real time simulator of the F-8 aircraft at the NASA Langley Research Center are discussed.
Athans, M.↗
Solar energy control system
A solar energy control system for a hot air type solar energy heating system wherein thermocouples are arranged to sense the temperature of a solar collector, a space to be heated, and a top and bottom of a heat storage unit is disclosed. Pertinent thermocouples are differentially connected together, and these are employed to effect the operation of dampers, a fan, and an auxiliary heat source. In accomplishing this, the differential outputs from the thermocouples are amplified by a single amplifier by multiplexing techniques. Additionally, the amplifier is corrected as to offset by including as one multiplex channel a common reference signal.
Currie, J. R.↗