Results 1 to 10 of about 3,471 (214)

Experimental evaluation of the parameter-based closed-loop transfer function identification for electro-hydraulic servo systems

open access: yesAdvances in Mechanical Engineering, 2016
Closed-loop systems of an electro-hydraulic servo system including position, acceleration, and force closed-loop systems and their closed-loop transfer functions based on parameter model are adaptive identified using a recursive extended least-squares ...
Guang-Da Liu, Ge Li, Gang Shen
doaj   +1 more source

Adaptive Output Feedback Pressure Control for Electro-Hydraulic Servo Systems

open access: yesActuators
High-precision position control and pressure control are core performance requirements for modern electro-hydraulic actuators. While the design of controllers for high-performance position servo systems is relatively straightforward, the development of ...
Tao Han   +5 more
doaj   +1 more source

Study on the Vibration Characteristics of Separated Armature Assembly in an Electro-Hydraulic Servo Valve Under Interference Fit

open access: yesActuators
The electro-hydraulic servo valve is a critical component that transforms electrical signals into hydraulic signals, thereby controlling the hydraulic system. It finds extensive application in precision control systems.
Tong Li   +4 more
doaj   +1 more source

Preliminary results of the “four-dimensional six degrees-of-freedom” gait simulation system improvement

open access: yesFoot & Ankle Orthopaedics, 2018
Category: Basic Sciences/Biologics Introduction/Purpose: Using computer-controlled electro-hydraulic servo technology, we studied the improved “four-dimensional six degrees-of-freedom” gait simulation system based on motor and hydraulic hybrid drive ...
Xu Wang MD, Xin Ma MD
doaj   +1 more source

Research on intelligent algorithm of electro - hydraulic servo control system

open access: yesIOP Conference Series: Materials Science and Engineering, 2017
In order to adapt the nonlinear characteristics of the electro-hydraulic servo control system and the influence of complex interference in the industrial field, using a fuzzy PID switching learning algorithm is proposed and a fuzzy PID switching learning controller is designed and applied in the electro-hydraulic servo controller.
Yannian Wang, Yuhui Zhao, Chengtao Liu
openaire   +1 more source

The technical roadmap of the development of variable pitch propeller governors for turboprop

open access: yesHangkong gongcheng jinzhan
The variable pitch governor controls the propeller to maintain a constant speed,so that the propeller can be energy-saving and efficient in a wider range of flight envelope.
CHEN Tingting, GUO Yong, PAN Zhongjian
doaj   +1 more source

Nonlinear Model and Control of Electro Hydraulic Servo-Systems

open access: yes, 2018
In many applications, the use of hydraulic drives is still preferable to other driving powers. For instance, in shaking table systems for simulating earthquake signal, hydraulic actuators are still widely applied, because the technology of electrical actuators does not(yet) provide the superior performance of hydraulic actuators in generating high ...
openaire   +1 more source

Synergistic Integration of LQR Control and PSO Optimization for Advanced Active Suspension Systems Utilizing Electro-Hydraulic Actuators and Electro-Servo Valves

open access: yesEmitter: International Journal of Engineering Technology
This 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
doaj   +1 more source

Identification of electro-hydraulic load-sensing servo system

open access: yesEngineering for Rural Development, 2021
Alexander Mitov   +3 more
openaire   +1 more source

电液位置控制系统的二次优化

open access: yesJixie chuandong, 2004
In this paper, the optimum control model was deduced so as to enhance the precision and to improve the dynamic characteristic of electro hydraulic position servo system. The optimal Q matrix was obtained through optimum.
王幼民, 姚宏志
doaj  

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