Results 111 to 120 of about 10,681 (234)
Mechanics & IndustryElectro-hydraulic position servo system of valve-controlled symmetrical cylinder (EPSSVCS) is a very important and widely used electro-hydraulic servo system, the performance of which is often affected by friction nonlinearity and external random ...
Chen Hongsheng
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Apollo docking test device design study final report [PDF]
Docking simulation system for confirming Apollo probe design and drogue docking mechanisms under simulated space ...
Gaugh, W. J., Howard, V. W.
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Space Shuttle Main Engine (SSME) Pogo testing and results [PDF]
, 1982 To effectively assess the Pogo stability of the space shuttle vehicle, it was necessary to characterize the structural, propellant, and propulsion dynamics subsystems.
Fenwick, J. R. +2 more
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Disturbance torque rejection properties of the NASA/JPL 70-meter antenna axis servos [PDF]
Analytic methods for evaluating pointing errors caused by external disturbance torques are developed and applied to determine the effects of representative values of wind and friction torque.
Hill, R. E.
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, 1970 Internal and external serpentine devices for performing physical operations around orbital space ...
Wuenscher, H. F.
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A study of low-cost reliable actuators for light aircraft. Part A: Chapters 1-8 [PDF]
An analysis involving electro-mechanical, electro-pneumatic, and electro-hydraulic actuators was performed to study which are compatible for use in the primary and secondary flight controls of a single engine light aircraft.
Eijsink, H., Rice, M.
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Advanced flight control system study [PDF]
The architecture, requirements, and system elements of an ultrareliable, advanced flight control system are described. The basic criteria are functional reliability of 10 to the minus 10 power/hour of flight and only 6 month scheduled maintenance.
Klafin, J. F., Mcgough, J., Moses, K.
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Flight control systems properties and problems, volume 1 [PDF]
This volume contains a delineation of fundamental and mechanization-specific flight control characteristics and problems gleaned from many sources and spanning a period of over two decades.
Johnston, D. E., Mcruer, D. T.
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Technology requirements for advanced earth orbital transportation systems. Volume 2: Summary report [PDF]
The results of efforts to identify the technology requirements for advanced earth orbital transportation systems are reported. Topics discussed include: (1) design and definition of performance potential of vehicle systems, (2) advanced technology ...
Bangsund, E. L., Hepler, A. K.
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Application of active control landing gear technology to the A-10 aircraft [PDF]
Two concepts which reduce the A-10 aircraft's wing/gear interface forces as a result of applying active control technology to the main landing gear are described.
Edson, R., Ross, I.
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