Results 111 to 120 of about 12,984 (228)

Studies on the Thermal Behavior of an Electro-Hydrostatic Servo Actuator

open access: yesActuators
This paper presents a study on the thermal behavior of an electro-hydrostatic servo actuator designed to actuate the ailerons of an airliner. The considered servo actuator was designed using existing commercial off-the-shelf components (electric motor ...
Liviu Dinca   +4 more
doaj   +1 more source

Fuzzy Controllers for Position Control Electro-Hydraulic Actuators [PDF]

open access: yesProceedings of the 21st International Workshop on Computer Science and Information Technologies (CSIT 2019), 2019
Arsen Mesrpyan, Ruslan Sharipov
openaire   +1 more source

A method of hardware qualification for flight by analyses, similarity and integrated testing [PDF]

open access: yes
The results are described of a study on four pieces of flight hardware from the Saturn 1U and S-4B stages to determine whether the objectives of the formal qualification tests on that hardware could have been obtained within that program by methods other
Andriulli, J. B., Luther, R. N.
core   +1 more source

Space Transportation System solid rocket booster thrust vector control system [PDF]

open access: yes
The Solid Rocket Booster, Thrust Vector Control (TVC) system was designed in accordance with the following requirements: self-contained power supply, failsafe operation, 20 flight uses after exposure to seawater landings, optimized cost, and component ...
Mccool, A. A.   +2 more
core   +1 more source

Subselenean tunneler melting head design: A preliminary study [PDF]

open access: yes
The placement of base facilities in subsurface tunnels created as a result of subsurface mining is described as an alternative to the establishing of a base on the lunar surface. Placement of the base facilities and operations in subselenean tunnels will
Engblom, Bill   +4 more
core   +1 more source

Advanced Launch System (ALS): Electrical actuation and power systems improve operability and cost picture [PDF]

open access: yes
To obtain the Advanced Launch System (ALS) primary goals of reduced costs and improved operability, there must be significant reductions in the launch operations and servicing requirements relative to current vehicle designs and practices.
Sundberg, Gale R.
core   +1 more source

Pressure model of a four-way spool valve for simulating electrohydraulic control systems [PDF]

open access: yes
An equation that relates the pressure flow characteristics of hydraulic spool valves was developed. The dependent variable is valve output pressure, and the independent variables are spool position and flow.
Gebben, V. D.
core   +1 more source

Stimulation Modalities in Wearable Haptic Systems: Single-Mode Feedback to Multiphysics Actuation. [PDF]

open access: yesResearch (Wash D C)
Guo X   +10 more
europepmc   +1 more source

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