Results 91 to 100 of about 12,984 (228)
The F-18 systems research aircraft facility [PDF]
To help ensure that new aerospace initiatives rapidly transition to competitive U.S. technologies, NASA Dryden Flight Research Facility has dedicated a systems research aircraft facility.
Sitz, Joel R.
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Foreign technology summary of flight crucial flight control systems [PDF]
, 1984 A survey of foreign technology in flight crucial flight controls is being conducted to provide a data base for planning future research and technology programs.
Rediess, H. A.
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Multi-variable port Hamiltonian model of piezoelectric material [PDF]
, 2004 In this paper, the dynamics of a piezoelectric material is presented within the new framework of multi-variable distributed port Hamiltonian systems. This class of infinite dimensional system is quite general, thus allowing the description of several ...
Macchelli, A. +3 more
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IEEE AccessThe enormous throttling losses are the crucial reason for the low energy efficiency of non-road mobile machinery. To achieve energy saving, a parallel electro-hydraulic hybrid drivetrain that combines an electric-hydraulic energy recovery system with a ...
Tao Liang +4 more
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Systems study for an Integrated Digital-Electric Aircraft (IDEA) [PDF]
The results of the Integrated Digital/Electric Aircraft (IDEA) Study are presented. Airplanes with advanced systems were, defined and evaluated, as a means of identifying potential high payoff research tasks.
Bailey, A. R. +2 more
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Pressure Control of Electro-Hydraulic Servovalve and Transmission Line Effect
Al-Khawarizmi Engineering Journal, 2013 The effected of the long transmission line (TL) between the actuator and the hydraulic control valve sometimes essentials. The study is concerned with modeling the TL which carries the oil from the electro-hydraulic servovalve to the actuator.
Ahmed Fouad Mahdi +3 more
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Gain scheduling linear model of an electro-hydraulic actuator
An International Journal of Optimization and Control: Theories & Applications (IJOCTA), 2017 In different industrial processes in which position and force control are desired, electro-hydraulic systems have a widespread area of utilization. Models of electro-hydraulic systems include high order nonlinearity. In this study, a gain scheduling linear model corresponded with nonlinear model of a hydraulic force actuator system is developed.
Cem Onat, Mahmut Daskin, Abdullah Turan
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Independent Orbiter Assessment (IOA): Analysis of the elevon subsystem [PDF]
The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented. The IOA approach features a top-down analysis of the hardware to determine failure modes, criticality ...
Riccio, J. R., Wilson, R. E.
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Independent Orbiter Assessment (IOA): Analysis of the ascent thrust vector control actuator subsystem [PDF]
The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented. The IOA approach features a top-down analysis of the hardware to determine failure modes, criticality ...
Riccio, J. R., Wilson, R. E.
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Electromechanical Simulation of Actively Controlled Rotordynamic Systems with Piezoelectric Actuators [PDF]
, 1991 Theories and tests for incorporating piezoelectric pushers as actuator devices for active vibration control are discussed. It started from a simple model with the assumption of ideal pusher characteristics and progressed to electromechanical models with ...
Kascak, A. F. +3 more
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