Results 111 to 120 of about 3,270 (221)

Performance of an Electro-Hydrostatic Actuator on the F-18 Systems Research Aircraft [PDF]

An electro-hydrostatic actuator was evaluated at NASA Dryden Flight Research Center, Edwards, California. The primary goal of testing this actuator system was the flight demonstration of power-by-wire technology on a primary flight control surface.
Navarro, Robert
core   +1 more source

One Innovative Method for Improving the Power Density and Efficiency of Electro-Hydrostatic Actuators

Actuators
Although electro-hydrostatic actuators (EHAs) hold broad application prospects in more-electric aircraft and high-end equipment, they face a difficult trade-off between dynamic response and energy efficiency.
Zhenfei Ling, Fengqi Zhou, Hao Liu, Bo Yang, Xiaoping Ouyang   +4 more
doaj   +1 more source

A Systematic Literature Review on PHM Strategies for (Hydraulic) Primary Flight Control Actuation Systems

Actuators
Prognostic and Health Management (PHM) strategies are gaining increasingly more traction in almost every field of engineering, offering stakeholders advanced capabilities in system monitoring, anomaly detection, and predictive maintenance. Primary flight
Leonardo Baldo, Andrea De Martin, Giovanni Jacazio, Massimo Sorli   +3 more
doaj   +1 more source

Electro-Hydrostatic Drive Concept for the Ring Rolling Process

, 2018
Published by [Mainz ...
Siemer, Ekhard, Boes, Christoph, Bolik, Ralf   +2 more
openaire   +2 more sources

Class 2 design update for the family of commuter airplanes [PDF]

This is the final report of seven on the design of a family of commuter airplanes. This design effort was performed in fulfillment of NASA/USRA grant NGT-8001. Its contents are as follows: (1) the class 1 baseline designs for the commuter airplane family;
Creighton, Thomas R., Hendrich, Louis J.
core   +1 more source

Redundant Digital Hydraulic Actuators for Flight Control Surfaces [PDF]

The aircraft industry is continually driven to improve energy efficiency in response to environmental concerns and cost reduction. Among solutions available in the field, hydraulics is commonly chosen to deliver crucial functions for its known ...
de Abreu Burgos Gonçalves, Tulio, De Negri, Victor Juliano, Dell'Amico, Alessandro, Krus, Petter, Nostrani, Marcos Paulo, Oliveira e Silva, Dimitri, Simões Lopes Junior, Rodrigo   +6 more
core   +2 more sources

Development of friction free controller for electro-hydrostatic actuator using feedback modulator and disturbance observer [PDF]

, 2017

core   +1 more source

Energy efficient design of regenerative shock absorbers for automotive suspensions: A multi-objective optimization framework [PDF]

This study addresses the optimized design of electro-hydrostatic regenerative shock absorbers to enhance vibrational energy recovery in ground vehicles, aiming to reduce carbon footprint.
Amati, Nicola, Galluzzi, Renato, Puliti, Marco, Tessari, Federico, Tonoli, Andrea   +4 more
core   +1 more source

Electro-Hydrostatic Actuator Controller Design Using Quantitative Feedback Theory [PDF]

, 1994
The Electro-Hydrostatic Actuator (EllA) technology offers a higher degree of combat survivability and easier maintainability of the aircraft flight control system, because all the components necessary to operate the actuator are collocated with the ...
Kang, Ki Ho
core   +1 more source

Fault Detection in an Electro-Hydrostatic Actuator Using Polyscale Complexity Measures and Bayesian Classification

IEEE Open Journal of Instrumentation and Measurement
This article presents a novel approach for fault detection in a hydraulic actuation system. The fault of interest is the internal leakage of the actuator, which may often be caused by the wearing down of the piston seal.
Soleiman Hosseinpour, Witold Kinsner, Saman Muthukumarana, Nariman Sepehri   +3 more
doaj   +1 more source