Results 11 to 20 of about 10,283 (224)

Development of a Digital Twin Driven by a Deep Learning Model for Fault Diagnosis of Electro-Hydrostatic Actuators

open access: yesMathematics
The first quarter of the 21st century has witnessed many technological innovations in various sectors. Likewise, the COVID-19 pandemic triggered the acceleration of digital transformation in organizations driven by artificial intelligence and ...
Roman Rodriguez-Aguilar   +2 more
exaly   +3 more sources

Design, fabrication, and characterization of a hydrostatic electroactive soft actuator for bio-inspired robots

open access: yesBiomimetic Intelligence and Robotics, 2022
In this paper, we design a hydrostatic electroactive soft actuator (HESA) inspired by octopus transverse musculature. We introduce the advantage of laser processing technology in HESA fabrication compared with existing similar actuators and discuss the ...
Yiyuan Zhang   +5 more
doaj   +1 more source

Disturbance Observer-Based Sliding Mode Controller for Underwater Electro-Hydrostatic Actuator Affected by Seawater Pressure

open access: yesMachines, 2022
This paper presents a disturbance-observer-based sliding mode control strategy for an underwater electro-hydrostatic actuator, particularly considering that electro-hydrostatic actuators (EHAs) significantly suffer from sea pressure disturbance, which ...
Yong Nie   +6 more
doaj   +1 more source

Design, Analysis, and Verification of an Electro- Hydrostatic Actuator for Distributed Actuation System [PDF]

open access: yesSensors, 2020
In order to provide a simplified and low-cost solution of the terminal for a distributed actuation system, this paper proposes an electro-hydrostatic actuator (EHA) based on the linear drive principle. The proposed actuator is directly driven by a linear pump with a collaborative rectification mechanism, whose performance relies on the collaboration of
Yang Li 0080, Zongxia Jiao, Zimeng Wang
openaire   +3 more sources

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

open access: yesInternational 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   +3 more
doaj   +1 more source

Refined Modeling Method and Analysis of an Electromagnetic Direct-Drive Hydrostatic Actuation System

open access: yesActuators, 2022
The hydrostatic actuation system based on linear actuators improves the complex piston force and long transmission path of the traditional electro-hydrostatic actuator (EHA).
Jiayu Lu   +5 more
doaj   +1 more source

Validation of Aero-Load Estimator for Convair 880 Aircraft Flight Simulator Benchmark with Electro-Hydrostatic Actuators [PDF]

open access: yesINCAS Bulletin, 2021
Simulating an aircraft model using of high fidelity models of subsystems for its primary and secondary flight control actuators requires measuring or estimating aero-load data acting on flight control surfaces.
Yamina BOUGHARI   +4 more
doaj   +1 more source

Research on Fault Diagnosis Method of Electro‐Hydrostatic Actuator [PDF]

open access: yesShock and Vibration, 2021
Electrohydrostatic actuator is a type of actuator that uses hydraulic energy as the energy transmission carrier, which has the advantages of small size and high power. Since it is commonly used in harsh conditions such as strong vibration, high pressure, and heavy loads, condition monitoring and fault diagnosis of its hydraulic system are particularly ...
Lei Zhufeng   +4 more
openaire   +2 more sources

A Model - Based Jamming Detection Method for Electro-Hydrostatic Actuators

open access: yesHittite Journal of Science and Engineering, 2020
A n anomaly or a fault, which may be treated as insignificant in a complicated engineering system, like an electro–hydraulic flight control actuator, can cause considerable performance degradation and deteriorating effects or even worse it may end up ...
Emre Murat Poyraz   +2 more
doaj   +1 more source

A Preliminary Design Method of High-Power Electro-Hydrostatic Actuators Considering Design Robustness

open access: yesActuators, 2022
Electro-hydrostatic actuators (EHAs) are expanding their application fields due to their combined advantages of electric and hydraulic actuation.
Tuanhui Guo   +3 more
doaj   +1 more source

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