scholarly journals AN ELECTRO-HYDRAULIC SERVO MECHANISM WITH AN ANALOG ADAPTIVE CONTROLLER

1989 ◽  
Vol 1989 (1) ◽  
pp. 205-212
Author(s):  
Kazushi Sanada ◽  
Yoshiyasu Hagiwara ◽  
Ato Kitagawa
Keyword(s):  
Adaptive Controller ◽  
Servo Mechanism ◽  
Hydraulic Servo

scholarly journals APPLICATION OF ADAPTIVE CONTROLLER TO WATER HYDRAULIC SERVO CYLINDER

2005 ◽  
Vol 2005 (6) ◽  
pp. 432-436 ◽  
Author(s):  
Hidekazu TAKAHASHI ◽  
Kazuhisa ITO ◽  
Shigeru IKEO
Keyword(s):  
Adaptive Controller ◽  
Hydraulic Servo ◽  
Water Hydraulic

An Adaptively Controlled Electrohydraulic Servo-Mechanism: Part 1: Adaptive Controller Design

1987 ◽  
Vol 201 (3) ◽  
pp. 175-180 ◽  
Author(s):  
K A Edge ◽  
K R A Figueredo
Keyword(s):  
Adaptive Control ◽  
Controller Design ◽  
Control Design ◽  
Adaptive Controller ◽  
Adaptive Control System ◽  
Sampled Data ◽  
Robust Controller ◽  
Servo Mechanism ◽  
Control Scheme ◽  
Model Reference Adaptive

A systematic model reference adaptive control design scheme is presented. The control scheme is developed and analysed within the framework of a sampled data system with a parameter adaptive algorithm designed on the basis of hyper stability theory. A number of supervisory functions are used to supplement the basic adaptive control system in order to enhance robust controller action.

scholarly journals Study on the Instability in a Loaded Hydraulic Servo-Mechanism : 1st Report, Effects of Compressibility of Oil and Sustained Oscillations

1970 ◽  
Vol 13 (63) ◽  
pp. 1066-1075
Author(s):  
Tadaya ITO ◽  
Takayoshi MUTO ◽  
Shoichi KANO ◽  
Masayuki HATTORI
Keyword(s):  
Sustained Oscillations ◽  
Servo Mechanism ◽  
Hydraulic Servo

Lyapunov Based Adaptive Control Method for Hydraulic Servo Drive

2016 ◽  
Author(s):  
Hamid Roozbahani ◽  
Konstantin Frumkin ◽  
Heikki Handroos
Keyword(s):  
Adaptive Control ◽  
Control Algorithm ◽  
Environmental Changes ◽  
Control Method ◽  
Servo System ◽  
Adaptive Controller ◽  
Servo Drive ◽  
Hydraulic Servo ◽  
Hydraulic Servo System ◽  
Adaptive Control Algorithm

Adaptive control systems are one of the most significant research directions of modern control theory. It is well known that every mechanical appliance’s behavior noticeably depends on environmental changes, functioning-mode parameter changes and changes in technical characteristics of internal functional devices. An adaptive controller involved in control process allows reducing an influence of such changes. In spite of this such type of control methods is applied seldom due to specifics of a controller designing. The work presented in this paper shows the design process of the adaptive controller built by Lyapunov’s function method for a hydraulic servo system. The modeling of the hydraulic servo system were conducting with MATLAB® software including Simulink® and Symbolic Math Toolbox™. In this study, the Jacobi matrix linearization of the object’s mathematical model and derivation of the suitable reference models based on Newton’s characteristic polynomial were applied. In addition, an intelligent adaptive control algorithm and system model including its nonlinearities was developed to solve Lyapunov’s equation. Developed algorithm works properly and considered plant is met requirement of functioning with. The results shows that the developed adaptive control algorithm increases system performance in use devices significantly and might be used for correction of system’s behavior and dynamics.

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