Results 231 to 240 of about 450,434 (280)

Cavitation in Valve-Controlled Hydraulic Actuators

Journal of Applied Mechanics, 1963
Results of analytical and experimental studies of cavitation in valve-controlled hydraulic actuators under various dynamic conditions are presented. The analytical work consists of deriving approximate critical cavitation conditions for various operating modes.
Wang, P. K. C., Ma, J. T. S.
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Intelligent Diagnostic System for Hydraulic Actuator

2019 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM), 2019
© 2019 IEEE. The proposed technical solution allows optimizing the process of hydraulic drive control, which leads to increased energy efficiency, as well as diagnosing the state of the hydraulic system of the industrial machine. To ensure the speed of the process of diagnosing the state of the hydraulic drive in addition to the hardware of the system,
Khaziev E., Khaziev M.
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Modeling and identification of an Electro-Hydraulic Actuator

2016 12th IEEE International Conference on Control and Automation (ICCA), 2016
In this work, a physical non-linear model of an Electro-Hydraulic Actuator has been developed. Each system component (valves, pipes, cylinders) and their interactions have been modeled by means of conservation and constitutive laws. The actuator dynamics, with lumped-parameter element models, have been treated accurately, with special attention given ...
Cologni, Alberto Luigi, Mazzoleni, Mirko, Previdi, Fabio   +2 more
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Cascade control of hydraulically actuated manipulators

Robotica, 1990
SUMMARYA fundamental study on the control of hydraulically actuated robots is presented. Dynamic modelling is performed in both time-domain and frequency-domain. It is shown that the inclusion of hydraulic elements increases the order of the system. Hydraulic compliance is the most effective factor in this regard.Three distinct control strategies are ...
Nariman Sepehri, Guy Albert Dumont, Peter D. Lawrence, Farrokh Sassani   +3 more
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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), 2015
This 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, Lei Zhou, Yisong Tian, Zongxia Jiao, Yaoxing Shang, Zengning Song, Liang Yan 0001   +6 more
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Control of a hydraulically-actuated quadruped robot leg

2010 IEEE International Conference on Robotics and Automation, 2010
This paper is focussed on the modelling and control of a hydraulically-driven biologically-inspired robotic leg. The study is part of a larger project aiming at the development of an autonomous quadruped robot (hyQ) for outdoor operations. The leg has two hydraulically-actuated degrees of freedom (DOF), the hip and knee joints.
Michele Focchi, Emanuele Guglielmino, Claudio Semini, Thiago Boaventura Cunha, Yousheng Yang, Darwin G. Caldwell   +5 more
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Design of a Hydraulic Actuator Test Stand for Non-Linear Analysis of Hydraulic Actuator Systems

Automation Technology for Off-Road Equipment Proceedings of the 2002 Conference, 2013
Stability is imperative in the design of hydraulic systems. Servo-hydraulic systems are inherently non-linear creating various nuances when analyzing the stability of the system. Friction, port flow, saturation, impact loading, line dynamics, and boundary conditions are a few of the many non-linearities found in servo-hydraulic systems which are to ...
null Jill E. Krutz, null David F. Thompson, null Gary W. Krutz, null Randall J. Allemang   +3 more
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Transputer control of hydraulic actuators and robots

IEEE Transactions on Industrial Electronics, 1996
The paper reports and discusses results from a Danish mechatronic research program focusing on intelligent actuators for intelligent motion control. A mechatronic test facility with a transputer controlled hydraulic robot suitable for real-time experimentation and evaluation of control laws and algorithms is described.
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A hydraulically-actuated vibrating table.

In engineering testing, a requirement frequently arises for subjecting components or assemblies to vibrations, in order to observe whether they possess undesirable resonances in their component parts, or whether they are sufficiently robust to operate under environmental conditions of severe vibration.
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Hydraulic Actuation

2022
Thiago Boaventura, Claudio Semini
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