Design and analysis of a modular servoamplifier for fast-response electrohydraulic control systems
Design and analysis of modular servoamplifier for fast response electrohydraulic control systems
Zeller, J. R.↗
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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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Synthesis methods for manual aerospace control systems with applications to SST design
Synthesis methods for manual aerospace control systems using digital programming and man machine performance data with application to supersonic transport design
Knight, J. R.↗
Development and design of an isotope-heated catalytic oxidizer trace contaminant control system
Development and design of isotope heated catalytic oxidizer trace contaminant control system
Olcott, T. M.↗
On approximation of functions, topological mappings and nonlinear feedback control systems
Topological mappings for use in design of optimal nonlinear feedback control systems
Athans, M.↗
A stability bound for relay control systems in non-phase variable form
Stability bound for relay control systems using similarity transformation for each parameter set within parameter space
Goldstein, B. F.↗
Static testing of the San Marco 2 satellite - Tests of the temperature control system
Static testing of San Marco 2 satellite and its temperature control system
Arduini, C.↗
Preliminary data for plume definition of the R4D engine for the Command Service Module Reaction Control System
Exhaust plume characteristics for R4D engine used by CSM reaction control system
Source record↗
Study of a nonstationary adjoint statistical wind model for flight control systems analysis Final report
Nonstationary adjoint statistical wind model for flight control systems analysis
Palmer, J. L.↗
A model of the human postural control system
Nine degree of freedom pitch axis model of human postural control system, deriving kinetic and potential energy expressions
Hill, J. C.↗
Nonlinear analysis of a launch vehicle attitude control system
Initial parameter conditions influence on sustained unstable oscillations of attitude control system for large space vehicle, calculating stable region by nonlinear method
Seltzer, S. M.↗
Space shuttle reaction control system
Low and high chamber pressure concepts for space shuttle reaction control system
Kendrick, D.↗
Skylab attitude and pointing control system
Skylab earth-orbiting manned space station attitude and pointing control systems design
Chubb, W. B.↗
Design of dominant-type control systems with large parameter variations
Optimum design of dominant type adaptive control systems with large parameter variations, using fourth order approximation
Horowitz, I. M.↗
Thermal control system for a spacecraft modular housing
The development of a thermal control system for a spacecraft module is discussed. The wall structures are composed of superinsulation in some cases and of thermally conductive material in other cases. Heat pipes are installed to provide a path of heat transfer from the interior of the module to space. The design of the system makes it possible to maintain a relatively uniform temperature throughout the module with side variations of the amount of heat dissipated by the components within the module.
Eby, R. J.↗
Design, fabrication, and test of a trace contaminant control system. Appendixes A and B
Engineering specifications of a trace contaminant control system designed for the Space Station Prototype (SSP) were given. These were divided into two appendices: (1) a list of nonmetallic materials used, and (2) engineering drawings of the overall system, sub-assemblies, and components.
Source record↗
Backup flight control system functional evaluator software manual
The software for the Backup Flight Control System Functional Evaluator (BFCSFE) on a Data General Corporation Nova 1200 computer consists of three programs: the ground support program, the operational flight program (OFP), and the ground pulse code modulation (PCM) program. The Nova OFP software is structurally as close as possible to the AP101 code; therefore, this document highlights and describes only those areas of the Nova OFP that are significantly different from the AP101. Since the Ground Support Program was developed to meet BFCSFE requirements and differs considerably from the AP101 code, it is described in detail.
Helmke, C. A.↗
Alternative methods for the design of jet engine control systems
Various alternatives to linear quadratic design methods for jet engine control systems are discussed. The main alternatives are classified into two broad categories: nonlinear global mathematical programming methods and linear local multivariable frequency domain methods. Specific studies within these categories include model reduction, the eigenvalue locus method, the inverse Nyquist method, polynomial design, dynamic programming, and conjugate gradient approaches.
Sain, M. K.↗
DSN monitor and control system, Mark 3-78
A description of the DSN Monitor and Control System, Mark 3-78, is discussed. The major implementation required to evolve from the Mark 3-75 to the Mark 3-78 configuration is also discussed.
Stinnett, W. G.↗