Results 21 to 30 of about 343,795 (193)
Alexandria Engineering Journal, 2022 In more electrical aircraft, most flight control wing surface actuators are either electro-hydrostatic or electro-mechanical, whether in manual or autopilot mode.
Reda Dermouche +5 more
doaj +1 more source
, 2006 The future More Electric Aircraft (MEA) technology focus on increasing the use of electrical equipment to a larger extent, e.g. replacing conventional hydraulic and pneumatic actuators with electromechanical or electro hydrostatic actuators to reduce ...
Torabzadeh-Tari, Mohsen +3 more
core +9 more sources
Novel Concept for Electro-Hydrostatic Actuators for Motion Control of Hydraulic Manipulators
Energies, 2021 Self-contained hydraulic cylinders have gained popularity in the recent years but have not been implemented for high power articulated hydraulic manipulators.
Konrad Johan Jensen +2 more
doaj +1 more source
Applied Sciences, 2023 A new type dissimilar redundant actuation system (NT-DRAS), which is composed of an electro-hydrostatic actuator (EHA) and an electro-mechanical actuator (EMA), is applied in high value unmanned aerial vehicles such as the future near space vehicles to ...
Jian Huang +5 more
doaj +1 more source
Modeling and control of an electro-hydrostatic actuator [PDF]
Proceedings of the IEEE 1995 National Aerospace and Electronics Conference. NAECON 1995, 2002 Advanced electro-hydrostatic actuators offer a high degree of maintainability and combat survivability of aircraft flight control systems, because all the components necessary to operate the actuator are collocated with the actuator. The quantitative feedback theory robust control method is used to design a controller for the actuator.
Kang, K. +3 more
openaire +1 more source
Development of Lower-Limb Wearable Robot with Single Acting Hydraulic Telescopic Cylinder Electro Hydrostatic Actuator (SAT-EHA) for Handling of Heavy Loads [PDF]
한국정밀공학회지, 2020 For years, crane, a chain block, an elevator and a forklift truck have been developed and used to carry heavy loads, but manpower needed where heavy equipment use is not practical.
Dong-Hyun Jeong +2 more
doaj +1 more source
Actuators, 2021 This paper deals with safety-critical, high-power actuation in aerospace applications. Using a system-level synthetic view, it identifies, explains and discusses the reasons why electrically supplied, or power-by-wire, solutions have not spread rapidly ...
Jean-Charles Maré
doaj +1 more source
Harmonic Control for Variable-Frequency Aviation Power System Based on Three-Level NPC Converter
IEEE Access, 2020 At present, three-phase 115V/360-800Hz variable frequency AC power system is mostly used in the main power system of More-Electric Aircraft. With the increase of EMA (Electro-Mechanical Actuator), EHA (Electro-Hydrostatic Actuator), DC/DC power supply ...
Zhenyang Hao, Xinying Wang, Xin Cao
doaj +1 more source
Comparative Energy Analysis of a Load Sensing System and a Zonal Hydraulics for a 9-Tonne Excavator
Actuators, 2020 With the rising demand for energy efficiency, displacement-controlled or so-called pump-controlled systems have become an attractive research topic for applications in construction machinery and other off-road vehicles.
Paolo Casoli +3 more
doaj +1 more source
Preliminary design and multi-objective optimization of electro-hydrostatic actuator [PDF]
, 2016 Electro-hydrostatic actuator is generally regarded as the preferred solution for more electrical aircraft actuation systems. It is of importance to optimize the weight, efficiency and other key design parameters, during the preliminary design phase. This
Luk, Patrick Chi-Kwong +3 more
core +1 more source