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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Perishable air cargo physiological characteristics effect on aircraft environmental control systems, noting handling systems for air shipment
Simulation studies of supersonic transports in future air traffic control systems
Reaction control system integrated systems performance analysis LM computer program - users manual
New model performance index for engineering design of flight control systems
Performance prediction for fast reactor with axially moving reflector control system
Deceleration control system for aerobraking and skipout to orbit at Mars
Spacecraft design for minimization of structure interaction with control system, noting susceptibility of extendible booms to solar environment
Deceleration control system for aerobraking and skipout to orbit at Mars
Automatic restart control system for axisymmetric mixed compression inlet
Frequency response approach to adaptive control systems design by translating from time to frequency domain specifications
Thermal and mechanical design of strapdown inertial guidance and control systems
Management operations research, and design of present air traffic control system and future research
Suboptimal nonlinear feedback control synthesis for linear time-invariant system with convex cost functional
Stability analysis parameter plane technique for tactical missile control system design, correlating variable parameters with characteristic equation roots location
Quadratic performance index for VTOL aircraft model reference attitude control system
Stability criterion for cross coupled symmetrical two dimensional nonlinear control systems allowing different slopes for Popov lines
Brayton space power system for NASA manned space missions, discussing control system requirements, design and performance
The role of the linear-quadratic stochastic control problem in engineering design is reviewed in tutorial fashion. The design approach is motivated by considering the control of a nonlinear uncertain plant about a desired input-output response. It is demonstrated how a design philosophy based on (1) deterministic perturbation control, (2) stochastic state estimation, and (3) linearized stochastic control leads to an overall closed-loop control system. The emphasis of the paper is on the philosophy of the design process, the modeling issue, and the formulation of the problem; the results are given for the sake of completeness, but no proofs are included. The systematic off-line nature of the design process is stressed throughout.