Results 1 to 10 of about 10,681 (234)
Dual-valve parallel prediction control for an electro-hydraulic servo system. [PDF]
Sci Prog, 2020 To improve the dynamic response performance of a high-flow electro-hydraulic servo system, scholars have conducted considerable research on the synchronous and time-sharing controls of multiple valves. However, most scholars have used offline optimization to improve control performance.
Su SJ, Zhu YY, Li CJ, Tang WX, Wang HR.
europepmc +4 more sources
Research on Electro-Hydraulic Servo Resonance Technology [PDF]
SensorsIn this paper, an electro-hydraulic servo resonance technology is proposed to meet the loading requirements of a high-frequency sound fatigue test for large tonnage.
Xiuguang Yang, Peng Liu, Hongwei Zhao
doaj +2 more sources
Physical modelling and analysis of electro-hydraulic position servo systems for single rod hydraulic cylinders [PDF]
Zhihui kongzhi yu fangzhen, 2023 The electro-hydraulic position servo system of a single rod hydraulic cylinder is used in a large number of engineering applications due to its compact structure, but due to its asymmetric structure and complex mathematical model, many factors cannot be ...
ZHANG Yizhe, LI Yuesong, LI Geqiang, LI Guifei, WANG Bang
doaj +1 more source
Zhongguo Jianchuan Yanjiu, 2022 ObjectiveIn order to realize the precise control of a certain type of electro-hydraulic position servo system, a feedback-feedforward variable gain iterative learning method is proposed. MethodFirst, the simplified model of the electro-hydraulic position
Xuan LIU +4 more
doaj +1 more source
Built-in test technology for electro-hydraulic servo-valve amplifier
Zhongguo Jianchuan Yanjiu, 2021 Objectives The electro-hydraulic servo valve operates in a harsh working environment but lacks integrated testability. In order to improve the usability and maintainability of electro-hydraulic servo valves, it is necessary to design a built-in test (BIT)
Jianping YUAN, Hanbing SUN
doaj +1 more source
Research on Model-Free Adaptive Control of Electro-Hydraulic Servo System of Continuous Rotary Motor
IEEE Access, 2022 The model-free adaptive controller (MFAC) for continuous rotary electro-hydraulic servo motor was proposed to deal with uncertainties such as friction, leakage and noise.
Xiaojing Wang, Yang Zhang, Chunhui Li
doaj +1 more source
Finite-Time Output Feedback Control for Electro-Hydraulic Servo Systems with Parameter Adaptation
Machines, 2021 Measurement noise, parametric uncertainties, and external disturbances broadly exist in electro-hydraulic servo systems, which terribly deteriorate the system control performance. To figure out this problem, a novel finite-time output feedback controller
Luyue Yin +3 more
doaj +1 more source
Early Fault Symptom Diagnosis of Aircraft Electro-hydraulic Servo Valve
Hangkong gongcheng jinzhan, 2020 Electro-hydraulic servo valve is an important part of aircraft brake system, which affects the safety of aircraft landing. In order to solve the problem of frequent failure of a certain type of electro-hydraulic servo valve, a model of electro-hydraulic ...
JIN Guotao
doaj +1 more source
Sensors, 2023 Real-time hybrid testing (RTH) is a test method for dynamic loading performance evaluation of structures, which is divided into digital simulation and physical testing, but the integration of the two may lead to problems such as time lag, large errors ...
Yaoyu Shen +3 more
doaj +1 more source
Design and Control of a Linear Rotary Electro-Hydraulic Servo Drive Unit
Applied Sciences, 2023 In this paper, a new solution for an electro-hydraulic servo drive is proposed, which consists of two electro-hydraulic servo drives: one with a hydraulic cylinder and one with a hydraulic rotary motor.
Andrzej Milecki +2 more
doaj +1 more source