Results 21 to 30 of about 348,905 (99)

Research on Power Matching and Energy Optimal Control of Active Load-Sensitive Electro-Hydrostatic Actuator

open access: yesIEEE Access, 2021
Electro-hydrostatic actuator (EHA) is an important type of power-by-wire (PBW) which is a highly integrated closed volume control system with the advantages of high reliability, high efficiency and easy maintenance.
Ligang Huang   +3 more
doaj   +1 more source

RISE-Based Composite Adaptive Control of Electro-Hydrostatic Actuator with Asymptotic Stability

open access: yesMachines, 2021
The electro-hydrostatic actuator (EHA), the actuator of electric drive and hydraulic transmission, is competitive since it is small in size, light in weight and high in power density.
Yaowen Ge   +3 more
doaj   +1 more source

Fault Mode Analysis and Convex Optimization-Based Fault-Tolerant Control for New Type Dissimilar Redundant Actuation System of Near Space Vehicle

open access: yesApplied 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

An improved EKF based on excitation equivalent conversion for EHA multi-factor fault diagnosis

open access: yesAdvances in Mechanical Engineering, 2022
Electro-hydrostatic actuator (EHA), as an emerging power-by-wire (PBW) actuation mechanism with high energy efficiency and fast responsiveness, has been widely used in modern flight control systems.
Pei Chen   +4 more
doaj   +1 more source

Design and Experiments of Electro-Hydrostatic Actuator for Wheel-Legged Robot with Fast Force Control Response

open access: yesMachines, 2023
The wheel-legged robot combines the functions of wheeled vehicles and legged robots: high speed and high passability. However, the limited performance of existing joint actuators has always been the bottleneck in the actual applications of large wheel ...
Huipeng Zhao   +5 more
doaj   +1 more source

Research on Simulation of Aircraft Electro-Hydrostatic Actuator Anti-Skid Braking System

open access: yes2011 Third International Conference on Measuring Technology and Mechatronics Automation, 2011
With the background of the development of Aircraft Anti-skid Braking System, a new aircraft Electro-Hydrostatic Actuator (EHA) of a certain model fighter was designed to meet the need of the braking system. The paper described the principle of work and features of the EHA, gave the specific requirements of the system.
Bo Liang 0009, Yuren Li, Rensuo Li
openaire   +2 more sources

Robust Position Control of Electro-Hydrostatic Actuator Systems with Radial Basis Function Neural Networks

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2013
This paper presents the robust tracking control of EHA (Electro Hydrostatic Actuator) system. EHA system provides the simple structure and frees from the environment pollution, but the poor tracking performance is caused by the internal leakage, surging ...
Jeongju CHOI
doaj   +1 more source

Extended Sliding Mode Observer-Based Output Feedback Control for Motion Tracking of Electro-Hydrostatic Actuators

open access: yesMathematics, 2023
This paper develops a novel output feedback control scheme for the motion-tracking problem of an electro-hydrostatic actuator (EHA) in the presence of model uncertainties and external disturbances.
Manh Hung Nguyen, Kyoung Kwan Ahn
doaj   +1 more source

State‐of‐the‐art and some considerations on thermal load analysis and thermal management for hydraulic system in MEA

open access: yesThe Journal of Engineering, Volume 2018, Issue 13, Page 399-405, 2018., 2018
Hydraulic system is an important part in aircraft secondary energy‐resource system, its pumping source contains engine‐driven pump (EDP) and electrical‐motor‐driven pump, and it is in charge of safe and reliable power transmission for flight control actuation in the aircraft.
Dong Li, Sujun Dong, Jun Wang, Yunhua Li
wiley   +1 more source

Fault Diagnosis Method for Aircraft EHA Based on FCNN and MSPSO Hyperparameter Optimization

open access: yesApplied Sciences, 2022
Contrapose the highly integrated, multiple types of faults and complex working conditions of aircraft electro hydrostatic actuator (EHA), to effectively identify its typical faults, we propose a fault diagnosis method based on fusion convolutional neural
Xudong Li   +5 more
doaj   +1 more source

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