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Electro-Hydrostatic Actuator Modeling
Applied Mechanics and Materials, 2013This paper demonstrates the modeling of an Electro-Hydrostatic Actuator prototype. The mathematical derivation of the physical model is reported.Parametric model was obtained through system identification.
Yu Song, S.R. Habibi
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The Nonlinear Accuracy Model of Electro-Hydrostatic Actuator
2008 IEEE Conference on Robotics, Automation and Mechatronics, 2008The 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 +4 more
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Optimal Design of Accumulator Parameters for an Electro-Hydrostatic Actuator at Low Speed
Processes, 2021 The electro-hydrostatic actuator (EHA) is a type of highly integrated, compact, closed pump control drive system composed of a servo motor, a metering pump, a hydraulic cylinder and other components.
Chao Ai, Guishan Yan, Tiangui Zhang
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Analysis for the power loss of electro hydrostatic actuator and hydraulic actuator
2015 IEEE International Conference on Advanced Intelligent Mechatronics (AIM), 2015This article describes the difference between traditional airborne hydraulic actuator and electro hydrostatic actuator in heat dissipation. The power loss of the two systems are analyzed based on the method of energy transfer under different working conditions.
Wunong Hu +6 more
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Comparison of Controllers and Actuators Effect on Electro Hydrostatic Actuator
Applied Mechanics and Materials, 2019Hydraulic 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 +2 more
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Test research of electro-hydrostatic actuator
AIP Conference Proceedings, 2019Electro-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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Viscous pump for highly backdrivable Electro-Hydrostatic Actuator
2012 IEEE International Conference on Robotics and Automation, 2012It 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 +3 more
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Backdrivability analysis of Electro-Hydrostatic Actuator and series dissipative actuation model
2010 IEEE International Conference on Robotics and Automation, 2010Although 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 +5 more
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Screw pump for Electro-Hydrostatic Actuator that enhances backdrivability
2011 11th IEEE-RAS International Conference on Humanoid Robots, 2011Force sensitivity and backdrivability are vital functionality of actuators to be used in robots that physically interact with humans. Electro-Hydrostatic Actuator (EHA) is a type of a hydraulic actuator with backdrivability. To improve backdrivability of an EHA, reduction of friction, especially static friction is important. This, however, is difficult
Hiroshi Kaminaga +3 more
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Analysis on rigidity of hydraulic hoses for electro-hydrostatic actuators
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017Electro-hydrostatic actuators (EHAs) are said to have potential as actuators for robotic systems because they have high power-to-weight ratio, compact, and energy saving systems compared to general hydraulic systems. However, modeling approaches and analyses on dynamic characteristics have not been quite concrete yet. In order to expand EHAs' potential
Kenta Tsuda +4 more
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