Results 121 to 130 of about 283 (166)

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

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.
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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

The Nonlinear Accuracy Model of Electro-Hydrostatic Actuator

2008 IEEE Conference on Robotics, Automation and Mechatronics, 2008
The electro-hydrostatic actuator (EHA) is a kind of power-by-wire (PBW) actuator. In this paper, a typical architecture of EHA is described and the block diagram model of EHA is established directly from the mathematic equations without transfer functions, which is a nonlinear accuracy model.
Rongjie Kang, Zongxia Jiao, Shuai Wu, Yaoxing Shang, Jean-Charles Mare   +4 more
openaire   +1 more source

Backdrivability analysis of Electro-Hydrostatic Actuator and series dissipative actuation model

2010 IEEE International Conference on Robotics and Automation, 2010
Although backdrivability is recognized as an important property of actuators, this term is often used without clear definition. In order to design mechanisms with advanced controllability, it is important to understand the fundamental mechanism of backdrivability.
Hiroshi Kaminaga, Tomoya Amari, Yukihiro Katayama, Junya Ono, Yuto Shimoyama, Yoshihiko Nakamura   +5 more
openaire   +1 more source

Study on nonlinear PID control for electro-hydrostatic actuator

Proceedings of 2014 IEEE Chinese Guidance, Navigation and Control Conference, 2014
The structure and working principle of Electro-hydrostatic Actuator was analyzed in this paper. And a mathematical model based on the transfer function was given. The paper analyzed the influence of the electric motor and hydraulic section on the EHA system performance. A nonlinear block diagram model based on the Simulink was established in this paper.
Jizhong Fan, Dongyao Ling, Zhiyong Tang, Zhongcai Pei   +3 more
openaire   +1 more source