Results 21 to 30 of about 283 (166)

Design, Analysis, and Verification of an Electro- Hydrostatic Actuator for Distributed Actuation System [PDF]

Sensors, 2020
In order to provide a simplified and low-cost solution of the terminal for a distributed actuation system, this paper proposes an electro-hydrostatic actuator (EHA) based on the linear drive principle. The proposed actuator is directly driven by a linear pump with a collaborative rectification mechanism, whose performance relies on the collaboration of
Yang Li, Zongxia Jiao, Zimeng Wang
openaire   +3 more sources

Experimental Investigation of an Electro-Hydrostatic Actuator Based on the Novel Active Compensation Method

IEEE Access, 2020
For electro-hydrostatic actuators (EHAs), how to estimate and compensate for the combined effects of the severe nonlinearity caused by inner leakage and friction, the parametric uncertainties of the hydraulic components due to the environment and the ...
Mingkang Wang, Yan Wang, Yongling Fu, Rongrong Yang, Jiang'ao Zhao, Jian Fu   +5 more
doaj   +1 more source

Variable displacement electro-hydrostatic actuator [PDF]

Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991, 2002
The author discusses the effects of pump displacement on electro-hydrostatic actuator (EHA) performance characteristics and the possible advantages of using a variable displacement pump in an EHA. Issues discussed are heating, size, and stiffness.
openaire   +1 more source

Comparative Energy Analysis of a Load Sensing System and a Zonal Hydraulics for a 9-Tonne Excavator

Actuators, 2020
With the rising demand for energy efficiency, displacement-controlled or so-called pump-controlled systems have become an attractive research topic for applications in construction machinery and other off-road vehicles.
Paolo Casoli, Fabio Scolari, Tatiana Minav, Massimo Rundo   +3 more
doaj   +1 more source

Position Based Impedance Control of Electro-Hydrostatic Actuator

Journal of Physics: Conference Series, 2020
Abstract This paper presents a method for implementing position based impedance control (PBIC) in an electro-hydraulic actuator (EHA). Impedance control provides the actuator with compliance and facilitates the interaction with environment.
Guozhe Zhou, Xin Lv, Tieshan Feng, Luoning Gan   +3 more
openaire   +1 more source

Modeling and control of an electro-hydrostatic actuator [PDF]

Proceedings of the IEEE 1995 National Aerospace and Electronics Conference. NAECON 1995, 2002
Advanced electro-hydrostatic actuators offer a high degree of maintainability and combat survivability of aircraft flight control systems, because all the components necessary to operate the actuator are collocated with the actuator. The quantitative feedback theory robust control method is used to design a controller for the actuator.
K. Kang, M. Pachter, C.H. Houpis, S. Rasmussen   +3 more
openaire   +1 more source

Dynamic Analysis of Electro Hydrostatic Actuation System

Procedia Technology, 2016
AbstractMore electric aircraft initiative has led to Fly-By-Wire (FBW) and Power-By-Wire (PBW) technologies. PBW technology has several advantages and has potential for weight reduction and energy saving compared to conventional hydraulic system. Recent development in aviation technology have combined the electric and hydraulic system and arrived at ...
Navatha, A., Bellad, Kiran, Hiremath, Somashekhar S., Karunanidhi, S.   +3 more
openaire   +1 more source

Periodic Flows in Microfluidics. [PDF]

Small
This paper comprehensively reviews periodic flows in microfluidics, including their fundamentals, generation techniques, and applications. The theoretical fundamentals of periodic flows are explained using the hydraulic‐electric analogy and study the working principles of various periodic flow generation techniques.
Mudugamuwa A, Roshan U, Hettiarachchi S, Cha H, Musharaf H, Kang X, Trinh QT, Xia HM, Nguyen NT, Zhang J.   +9 more
europepmc   +2 more sources

Design and Numerical Study of Electro-Hydrostatic Actuator [PDF]

Journal of Physics: Conference Series, 2019
Abstract In order to improve the compactness and integration of electro-hydrostatic equipment to meet their miniaturization, a new electro-hydrostatic actuator (EHA) scheme is proposed, and the working principle and feature are introduced.
Yousheng Yang, Wenqian Niu, Jing Zhao
openaire   +1 more source

Nonlinear Position Control with Nonlinear Coordinate Transformation Using Only Position Measurement for Single-Rod Electro-Hydrostatic Actuator

Mathematics, 2020
In existing methods, full-state feedback is required for the position tracking of single-rod Electro Hydrostatic Actuators (EHAs). Measuring a full state is not always possible because of cost and space limitations.
Wonhee Kim, Daehee Won
doaj   +1 more source