Results 1 to 10 of about 638,968 (154)
A seventh-order model for dynamic response of an electro-hydraulic servo valve [PDF]
Chinese Journal of Aeronautics, 2014 AbstractIn this paper, taking two degrees of freedom on the armature–flapper assembly into account, a seventh-order model is deduced and proposed for the dynamic response of a two-stage electro-hydraulic servo valve from nonlinear equations. These deductions are based on fundamental laws of electromagnetism, fluid, and general mechanics.
Liu, Changhai, Jiang, Hongzhou
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Advanced Sensor Research, Volume 3, Issue 7, July 2024.This paper reviews the developing trends in hydraulic fluid power research, providing an overview of recent progress in increased performance and energy efficiency through improved system control. These improvements are being facilitated by the development of smart sensing technologies, which are discussed here in terms of their operating principles ...
Jingqi Liu +6 more
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Emitter: International Journal of Engineering TechnologyThis paper investigates the design and optimization of Linear Quadratic Regulator (LQR) controllers for vehicle active suspension systems, incorporating an electro-hydraulic actuator with an electro-servo valve.
Trong Tu
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IET Generation, Transmission &Distribution, Volume 18, Issue 10, Page 1992-2005, May 2024.This paper deals with the stability behavior of a full‐size converter (FSC) utilised hydropower plant. Specifically, it examines how the damping capability of a hydropower plant with a FSC can be enhanced in case of occurring inter‐area oscillations in the power system. Abstract Due to the increasing share of inverter‐based renewable energy sources and
Daniel Fank, Herwig Renner
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Research to the Wear and Geometric Error Relations of Electro hydraulic Servo Valve
Procedia Engineering, 2011 AbstractThe working principle, failure modes and failure causes of the jet pipe servo valve has been analyzed. Get the main failure modes of the servo valve, which is caused by wear. The influences of the arris edge geometric error on the performance of the servo valve been analyzed. Get the wearing capacity equal to the edge arris geometric error.
Bi, Huang xin, Yao, Jin yong, Li, Yuan
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Development and applications of the quasi‐dynamic triaxial apparatus for deep rocks
Deep Underground Science and Engineering, Volume 3, Issue 1, Page 70-90, March 2024.Two modifications were made to the TFD‐2000/D rock triaxial instrument to achieve the rock in fatigue creep alternation, variable amplitude cyclic disturbance, and constant fatigue loading on rocks. After the test, it could be well adapted for the study of strong disturbance and timing‐dependent properties of deep rocks.
Jinzhi Luo +5 more
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A New Control Technology of Shaking Table Based On the Jerk
工程科学与技术, 2018 Shaking table test is a direct and effective means of seismic response simulation and seismic performance observation of engineering structures,but because the electro-hydraulic servo shaking table system is complex nonlinear system,the performance of ...
Xiaojun LI +3 more
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Extended‐state‐observer‐based adaptive robust control of a single‐axis hydraulic shaking table
IET Control Theory &Applications, Volume 18, Issue 4, Page 442-453, March 2024.This paper presents a novel approach to the acceleration trajectory control problem of single‐axis hydraulic shaking table systems from a non‐linear perspective. This strategy employs a controller combined with an extended state observer and adaptive control, offering a design that more closely reflects real‐world scenarios and requires less parameter ...
Jiabao Wen +3 more
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Research on the position–pressure cooperative control strategy for full-hydraulic leveler
Advances in Mechanical Engineering, 2018 The characteristics of electro-hydraulic servo system of full-hydraulic leveler are high speed, large inertia, high frequency response, and multi-degree of freedom.
Dongping He +4 more
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Research on Multi-Mode Control of Electro-Hydraulic Variable Displacement Pump Driven by Servo Motor
ActuatorsThe electro-hydraulic power source with an electro-hydraulic variable pump driven by a servo motor is suitable for electrified construction machinery. To achieve better energy efficiency in different working conditions, the multi-mode control scheme was ...
Zhiqiang Zhang +5 more
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