Results 141 to 150 of about 2,221 (181)

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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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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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
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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
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
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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

Reliability of Different Loads on Electro Hydrostatic Actuator

2019
Electro Hydrostatic Actuators (EHA) is emerging as a viable option for industrial machine builders. The design combines the technologies of both electro-mechanical and electro-hydraulic systems. The major applications are in aerospace, robotics and automation industry etc. EHA system is an emerging technology.
Aravindkumar D. Kotagond, Somashekhar S. Hiremath, M. A. Kamoji   +2 more
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Characterization of aircraft electro hydrostatic actuator using virtual instrumentation

2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA), 2014
In Aerospace industry, implementation of Automated Test System (ATS) at the assembly and manufacturing floor improves characterization accuracy and plays a vital role to substantiate the airworthiness of the aircraft components. It is very useful in realizing high quality standards of aircraft components by virtue of meeting predefined acceptance test ...
Karthik SP, Vijay Desai, Yogananda V. Jeppu   +2 more
openaire   +1 more source

Multi-discipline simulation of electro-hydrostatic Actuator with Modelica

CSAA/IET International Conference on Aircraft Utility Systems (AUS 2018), 2018
The electro-hydrostatic actuator (EHA) is replacing the traditional hydraulic actuator to become an important part of the aircraft hydraulic system, because of its power by wire, easy maintenance and high reliability. But the application of EHA is limited by its disadvantage of heat dissipation. Therefore, it is necessary to establish the thermodynamic
null Min Gu, null Shuai Wu, null Chunfang Li, null Zongxia Jiao, null Tao Yang   +4 more
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Hydraulic circuit analysis for the electro-hydrostatic actuator system

2016 16th International Conference on Control, Automation and Systems (ICCAS), 2016
An Electro-Hydrostatic Actuator(EHA) is a kind of a closed loop system using bi-directional hydraulic pump and cylinder assembly, and is used to control the position of the aircraft and the missile. The EHA is also applied to the leisure field such as roof control of an automobile, wing body and power gate control of a special vehicle and tilting ...
So-Nam Yun, Jung-Ho Park, Sung-Soo Lee, Choong-Mok Yoo   +3 more
openaire   +1 more source