Results 111 to 120 of about 11,561 (230)
Identification of electro-hydraulic load-sensing servo system
Engineering for Rural Development, 2021 Alexander Mitov +3 more
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Recent Sikorsky R and D progress [PDF]
The recent activities and progress in four specific areas of Sikorsky's research and development program are summarized. Since the beginning of the S-76 design in 1974, Sikorsky has been aggressively developing the technology for using composite ...
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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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Electronic/electric technology benefits study [PDF]
The benefits and payoffs of advanced electronic/electric technologies were investigated for three types of aircraft. The technologies, evaluated in each of the three airplanes, included advanced flight controls, advanced secondary power, advanced avionic
Cronin, M. J., Howison, W. W.
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, 1970 Internal and external serpentine devices for performing physical operations around orbital space ...
Wuenscher, H. F.
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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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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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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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Nonlinear Model and Control of Electro Hydraulic Servo-Systems
, 2018 In many applications, the use of hydraulic drives is still preferable to other driving powers. For instance, in shaking table systems for simulating earthquake signal, hydraulic actuators are still widely applied, because the technology of electrical actuators does not(yet) provide the superior performance of hydraulic actuators in generating high ...
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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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