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Nonlinear dynamic analysis and control of a hydraulic press electro-hydraulic servo system
Journal of Low Frequency Noise, Vibration and Active Control, 2019 The internal electro-hydraulic servo system of a hydraulic press is affected by the non-linear friction, and it becomes non-linear, unstable under vibration. In this study, the dynamic behavior and control of such a system were investigated.
Chin-Tsung Hsieh, Chien-Pang Lai
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ActuatorsIn our industry, active disturbance rejection control already has been used to enhance the performance of the electro-hydraulic servo systems, despite the fact that electro-hydraulic servo systems are usually reduced to first-order and second-order ...
Junli Zhang +3 more
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BP-PID Control for Electro-hydraulic Proportional Position Servo System
International Journal of Online and Biomedical Engineering (iJOE), 2013 The electro-hydraulic proportional position servo system is a kind of highly non-linear and time-varying system as well as parameter uncertainties. It is often difficult to achieve satisfactory control results with the traditional control methods. Considering that the adaptive neural network PID control method has the characteristics of online learning
Jianming Zheng +4 more
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The Journal of Engineering, 2018 A set of semi-physical simulation system based on real-time working simulation platform tools (Matlab/RTW) was established for electro-hydraulic proportional position servo system in the development of missile weapons and other equipment.
Zhenxin He +5 more
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Kongzhi Yu Xinxi Jishu, 2020 It analyzed an electro-hydraulic servo system of typical high-performance underwater manipulator and established mathematical models of the electro-hydraulic servo system when taking Titan-4 7-function manipulator of Schilling company as an example ...
WANG Hongfei +3 more
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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
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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
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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
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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
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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
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