Results 11 to 20 of about 534 (128)

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

Position Control of a Single‐Rod Electro‐Hydrostatic Actuator Experiencing a Leaky Piston Seal

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
Single‐rod cylinders are generally employed in electro‐hydrostatic actuators (EHAs). A condition that is difficult to detect and could degrade the performance in single‐rod EHAs, is the faulty cylinder piston seal. It causes internal leakage from one chamber of the actuator to another.
Guangan Ren, Xiangwei Mou, Xiaohao Wen, Lintao Chen, Xingling Shao   +4 more
wiley   +1 more source

Modeling and Analysis of Prostate Soft Tissue Puncture Performance using Puncture Needle

Applied Bionics and Biomechanics, Volume 2022, Issue 1, 2022., 2022
When treating prostate cancer, the use of puncture robots is an effective method to perform radioactive seed implantation surgery. However, when the puncture needle enters the lesion, the soft tissue is easily deformed owing to the complex force between the puncture needle and soft tissue, which leads to a puncture deviation between the needle tip and ...
Bing Li, Lipeng Yuan, Qiguo Rong
wiley   +1 more source

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
doaj   +1 more source

Perspectives and Development of Electrical Systems in More Electric Aircraft

International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021
On‐board electrical systems are the key components of each modern aircraft. They enable its safer, more comfortable, and environmentally friendlier operation. The strict regulations to reduce pollution and noise are produced by aircraft eventuated in projects like Clean Sky or ICAO Global Coalition for Sustainable Aviation.
Ahmet Yigit Arabul, Emre Kurt, Fatma Keskin Arabul, İbrahim Senol, Martin Schrötter, Róbert Bréda, Dávid Megyesi, Kan Xie   +7 more
wiley   +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

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
doaj   +1 more source

A Sliding Mode Control Strategy for an ElectroHydrostatic Actuator with Damping Variable Sliding Surface

Actuators, 2020
Electro-hydrostatic actuator (EHA) has significance in a variety of industrial tasks. For the purpose of elevating the working performance, we put forward a sliding mode control strategy for EHA operation with a damping variable sliding surface. To start
Mingkang Wang, Yan Wang, Rongrong Yang, Yongling Fu, Deming Zhu   +4 more
doaj   +1 more source

Novel Concept for Electro-Hydrostatic Actuators for Motion Control of Hydraulic Manipulators [PDF]

, 2021
publishedVersio
Ebbesen, Morten Kjeld, Hansen, Michael Rygaard, Jensen, Konrad Johan   +2 more
core   +1 more source

Study on fault diagnosis algorithms of EHA based on CNN-SVM

Xibei Gongye Daxue Xuebao, 2023
Contrapose the highly integrated, complex working conditions and many kinds of faults of aircraft electro hydrostatic actuator(EHA), to diagnose the typical fault of EHA effectively, a fault diagnosis algorithm based on convolutional neural networks (CNN)
LI Xudong, LI Yanjun, CAO Yuyuan, WANG Xingye, DUAN Shixuan, ZHAO Zejian   +5 more
doaj   +1 more source