Results 131 to 140 of about 290 (181)

MODELLING AND CONTROL OF AN ELECTRO‐HYDROSTATIC ACTUATOR

International Journal of Robust and Nonlinear Control, 1997
The control of a novel aerospace actuator is considered, viz., an electro-hydrostatic actuator. It offers a high degree of maintainability and combat survivability of the aircraft's flight control system because all the actuator's elements are collocated.
Pachter, M., Houpis, C. H., Kang, K.
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Test research of electro-hydrostatic actuator

AIP Conference Proceedings, 2019
Electro-hydrostatic actuator is a new type of actuator with high integration and complex structure. This paper introduces the working principle of the electro-hydraulic actuator, researches the test project of a certain type of product, and designs the test hydraulic system according to the test items and requirements, explains the test method in ...
Lisheng Yin, Keli Xing
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Comparison of Controllers and Actuators Effect on Electro Hydrostatic Actuator

Applied Mechanics and Materials, 2019
Hydraulic actuators play a major role in aircraft flight actuation and control. Primary control systems in an aircraft typically control the components that guide an airplane during flight. Electro Hydrostatic Actuators (EHA) is emerging as a viable option for aerospace as well as industrial machine builders. It is an emerging technology which replaces
Aravindkumar D. Kotagond, Somashekhar S. Hiremath, M.A. Kamoji   +2 more
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Research on the energy-regulation electro-hydrostatic actuator

2016 IEEE Chinese Guidance, Navigation and Control Conference (CGNCC), 2016
This paper describes the benefits of the common electro-hydrostatic actuators(EHAs), the substitutes of common hydraulic actuators, and also highlights the motor heating problem. It proposes a energy-regulation EHAs which can not only insulate motor heating status caused by cis-load, but also improve its efficiency.
null Yaoxing Shang, null Shuhan Ke, null Zongxia Jiao   +2 more
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Review on electro hydrostatic actuator for flight control

International Journal of Fluid Power, 2016
AbstractElectro Hydrostatic Actuator (EHA) is an emerging aerospace technology that aims at replacing centralised hydraulic system by a self-contained and localised direct drive actuator system. EHA has become an important part of modern flight control systems due to the increased efficiency, reduced leakages and lower overall weight compared to ...
Navatha Alle, Somashekhar S. Hiremath, Singaperumal Makaram, Karunanidhi Subramaniam, Apratim Talukdar   +4 more
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Modeling and Identification of an Electro-Hydrostatic Actuator

IFAC Proceedings Volumes, 2010
Abstract The aim of this paper is to develop an accurate model of an electro-hydrostatic actuator (EHSA) and to estimate the model parameters. The physical behavior of each components has been analyzed and a linear model has been obtained. Then, the cylinder friction phenomenon and the cylinder chambers volume variations have been considered and a ...
BELLOLI, DAMIANO, PREVIDI, FABIO, SAVARESI, SERGIO MATTEO, A. Cologni, M. Zappella   +4 more
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A matrix converter based electro-hydrostatic actuator

IEE Seminar Matrix Converters, 2003
This paper describes the design, construction and testing of a matrix converter permanent magnet motor drive for an electro-hydrostatic actuator (EHA) for aircraft use. The converter has been built using a 1200 volt, 35 Amp Eupec Matrix Converter module.
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Some fuzzy controllers for electro-hydrostatic servo-actuator

Electrical Systems for Aircraft, Railway and Ship Propulsion, 2010
The aims of this paper, are to obtain for an electro-hydrostatic servo-actuator, good performances, (time response and frequency characteristics), making it usable on aircraft, and a more simple configuration of the regulator, with a short computing time and a more simple program, in order to obtain a cheaper and more simple implementation.
Dinca Liviu, Coman Adrian, Corcau Jenica Ileana, Grigorie Teodor-Lucian   +3 more
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Feedback linearization PID control for electro-hydrostatic actuator

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011
To solve the problem induced by serious nonlinear characteristic of the electro-hydrostatic actuator (EHA), and realize exact control of EHA, the mathematical model of EHA was derived, an exact linearization control law was obtained via nonlinear coordinate transformation and state feedback.
null Qian Zhang, null Bingqiang Li
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Viscous pump for highly backdrivable Electro-Hydrostatic Actuator

2012 IEEE International Conference on Robotics and Automation, 2012
It is widely acknowledged that the actuator's intrinsic backdrivability is important in realizing a force sensitive behavior. It is desirable to realize such actuator with electric motor that is advantageous from power-to-weight ratio and controllability point of view.
Hiroshi Kaminaga, Hirokazu Tanaka, Kazuki Yasuda, Yoshihiko Nakamura   +3 more
openaire   +1 more source