Results 31 to 40 of about 4,207 (222)

Robust Nonlinear Position Control with Extended State Observer for Single-Rod Electro-Hydrostatic Actuator

Mathematics, 2021
In the existing literature, studies on position controller design using only position feedback, considering the disturbances for single-rod electro-hydrostatic actuators (EHAs), have not been reported.
Young Seop Son, Wonhee Kim
doaj   +1 more source

Modal and nonmodal stability analysis of electrohydrodynamic flow with and without cross-flow [PDF]

, 2015
We report the results of a complete modal and nonmodal linear stability analysis of the electrohydrodynamic flow (EHD) for the problem of electroconvection in the strong injection region.
Atten, Atten, Atten, Boyd, Fulvio Martinelli, Félici, Jian Wu, Maurizio Quadrio, Melcher, Mengqi Zhang, Peter J. Schmid, Schmid   +11 more
core   +2 more sources

Performance analysis of an electro-hydrostatic actuator with high-pressure load sensing based on fuzzy PID [PDF]

Mechanical Sciences, 2021
Electro-hydrostatic actuator (EHA) is an important form of power-by-wire (PBW) technology, which is widely used in aircraft because of the characteristics of small size, high power and light weight.
H. Zhang, L. Ding, W. Zhang, C. Li
doaj   +1 more source

Numerical Simulation for Redundant Electro-Hydrostatic Servo-Actuators under Certain Special Conditions

Energies, 2022
This work presents some numerical simulations, performed using AMESim software, for a system composed by two redundant servo-actuators. Certain operating conditions are taken into account for these two electro-hydrostatic servo-actuators, which are ...
Liviu Dinca, Radu Bogateanu, Jenica-Ileana Corcau, Alexandru Dumitrache, Bogdan Suatean   +4 more
doaj   +1 more source

Results of a Feasibility Study of a Prognostic System for Electro-Hydraulic Flight Control Actuators

International Journal of Prognostics and Health Management, 2021
Electro-Hydraulic Servo-Actuators (EHSA) are currently the most used actuation technology for primary flight control systems of civil and military aircrafts. Although some alternatives have emerged in the last decade, such as electromechanical or electro-
Sylvain Autin, Andrea De Martin Giovanni Jacazio, Jérôme Socheleau, George Vachtsevanos   +3 more
doaj   +1 more source

A new framework for large strain electromechanics based on convex multi-variable strain energies: Finite Element discretisation and computational implementation [PDF]

, 2015
In Gil and Ortigosa (2016), Gil and Ortigosa introduced a new convex multi-variable framework for the numerical simulation of Electro Active Polymers (EAPs) in the presence of extreme deformations and electric fields.
Aguirre, Aguirre, Antonio J. Gil, Auricchio, Babus˘ka, Ball, Ball, Ball, Bathe, Bonet, Bonet, Bonet, Bonet, Bonet, Brezzi, Brooks, Bustamante, Bustamante, Bustamante, Bustamante, Bustamante, Ciarlet, Coleman, de~Boer, Dohrmann, Donea, Dorfmann, Dorfmann, Dorfmann, Ehret, Gil, Gil, Gil, Gonzalez, Hill, Hughes, Itskov, Izian, Kofod, Lee, Lee, Li, Marsden, Miehe, Ortigosa, O’Halloran, Pelrine, Pelrine, Pelrine, Rogelio Ortigosa, Rogers, Schröder, Schröder, Schröder, Siboni, Siboni, Simo, Skatulla, Stenberg, Suo, Taylor, Tiehu, Vogel, Vu, Vu, Vu, Zhao, Zhou   +67 more
core   +1 more source

Variable displacement electro-hydrostatic actuator [PDF]

Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991, 2002
The author discusses the effects of pump displacement on electro-hydrostatic actuator (EHA) performance characteristics and the possible advantages of using a variable displacement pump in an EHA. Issues discussed are heating, size, and stiffness.
openaire   +1 more source

Automatic Current-Constrained Double Loop ADRC for Electro-Hydrostatic Actuator Based on Singular Perturbation Theory

Actuators, 2022
For an electro-hydrostatic actuator (EHA), the position, speed, and current cascade three-loop control architecture are dominant in existing active disturbance rejection control (ADRC).
Rongrong Yang, Yongjie Ma, Jiali Zhao, Ling Zhang, Hua Huang   +4 more
doaj   +1 more source

Research on Refined Modeling and Fuzzy Control of Electro-Hydrostatic Actuator with Co-Simulation Method

Energies, 2022
The EHA is a highly integrated closed hydraulic system which is widely used in aerospace, vehicles, and robotics because of its high power and lightweight size.
Ruizhe Li, Yuhuan Du, Yang Yu
doaj   +1 more source

Design and Numerical Study of Electro-Hydrostatic Actuator [PDF]

Journal of Physics: Conference Series, 2019
Abstract In order to improve the compactness and integration of electro-hydrostatic equipment to meet their miniaturization, a new electro-hydrostatic actuator (EHA) scheme is proposed, and the working principle and feature are introduced.
Yousheng Yang, Wenqian Niu, Jing Zhao
openaire   +1 more source