Results 1 to 10 of about 290 (181)

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

Sensors, 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
Yang Li, Zongxia Jiao, Zimeng Wang
doaj   +5 more sources

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

Shock 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,
Lei Zhufeng, Qin Lvjun, Wu Xiaodong, Jin Wen, Wang Caixia   +4 more
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The Design and Testing of a PEA Powered Ankle Prosthesis Driven by EHA [PDF]

Biomimetics, 2022
Several studies have shown that actuation concepts such as Serial elastic actuator (SEA) can reduce peak power and energy consumption in ankle prostheses.
Qitao Huang, Bowen Li, Hongguang Xu
doaj   +2 more sources

Delay Analysis and the Control of Electro-Hydrostatic Actuators

Applied Sciences, 2022
The electro-hydrostatic actuator (EHA) has a high energy density and a compact structure so it is widely used in all/more electric aircraft. To gain energy-saving capability, the hydraulic lock can be applied in the EHA system, which can overcome the ...
Jiaming Zhang, Lingwei Li, Xinglong Zhang, Tianhong Zhang, Yuan Yuan   +4 more
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Thermal Characteristic and Analysis of Electro-Hydrostatic Actuator

IEEE Access
Electro-hydrostatic actuators (EHAs) are widely utilized due to their superior integration and high power-to-weight ratio. However, the elimination of a centralized oil source in EHAs restricts the cooling capacity of the system, leading to potential ...
Jiahui Liu, Hao Huang, Yaowen Ge, Xiaoli Zhao, Wenxiang Deng, Guangfa Gao, Jianyong Yao   +6 more
doaj   +2 more sources

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

Actuators, 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, Chaofan Gu, Yanjun Zhao, Cao Tan, Yingtao Lu, Changzhong Fu   +5 more
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Disturbance Observer-Based Sliding Mode Controller for Underwater Electro-Hydrostatic Actuator Affected by Seawater Pressure

Machines, 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, Zhenhua Lao, Jiajia Liu, Yichi Huang, Xiangwei Sun, Jianzhong Tang, Zheng Chen   +6 more
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Qualitative and quantitative analysis of the reliability of NPC and ANPC power converters for aeronautical applications

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, Abderrahmane Talaoubrid, Linda Barazane, Yamine Sellami, Mohamed Tadjine, Nadjet Zioui   +5 more
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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, Morten Kjeld Ebbesen, Michael Rygaard Hansen   +2 more
doaj   +1 more source

Double Redundancy Electro-Hydrostatic Actuator Fault Diagnosis Method Based on Progressive Fault Diagnosis Method

Actuators, 2022
The electro-hydrostatic actuator (EHA) is the key component of most electric aircraft, and research on its fault diagnosis technology is of great significance to improve the safety and reliability of aircraft flight.
Hai-Tao Qi, Dong-Ao Zhao, Duo Liu, Xu Liu   +3 more
doaj   +1 more source