Position Tracking Control of a Magnetorheological Fluid Actuation System

2018 ◽  
Author(s):  
Jian Cao ◽  
Linyuan Wang ◽  
Chen Si ◽  
Xiaocong Zhu ◽  
Bin Yao
Keyword(s):  
Tracking Control ◽  
Magnetorheological Fluid ◽  
Position Tracking ◽  
Actuation System ◽  
Position Tracking Control

Model-Free Algorithm for Friction Torque Adaptive Identification and Compensation

2010 ◽  
Vol 29-32 ◽  
pp. 155-162
Author(s):  
Li Jun Zheng ◽  
Xin Mei Cheng ◽  
Shan Shan Chen
Keyword(s):  
Nonlinear System ◽  
Control Problem ◽  
Tracking Control ◽  
Hydraulic System ◽  
Friction Torque ◽  
Position Tracking ◽  
Adaptive Identification ◽  
Model Free ◽  
Mathematics Knowledge ◽  
Position Tracking Control

In order to solve the electro-hydraulic system position tracking control problem, which caused by the nonlinear system friction torque disturbance, a model-free algorithm for the friction torque adaptive identification and compensation was put forward. The algorithm is based on the application mathematics knowledge and matching & following principle. It can accommodate to all situations with the friction torque (force) variety. The simulation result indicates that the algorithm can restrains the interference of the friction torque (force) effectively, and the system’s low speed character and tracking performance were been improved.

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