Friction models incorporating thermal effects in highly precision actuators.
This paper presents two models based on the LuGre model for friction with consideration of thermal effects. In Model I, parameters in the LuGre model are considered as temperature dependent. In Model II, parameters in the LuGre model are considered as temperature independent; while a temperature-dependent function is added to the temperature-independent LuGre model. Both models are experimentally evaluated, which shows that both can effectively incorporate thermal effects but Model II has better accuracy. Since these models are developed in the context of the motion system, they should be readily incorporated in motion control algorithms for effective control of motion systems with friction if temperature rise is significant in these systems.
Li
J W
JW
School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
Chen
X B
XB
An
Q
Q
Tu
S D
SD
Zhang
W J
WJ
D017276:Friction; D016014:Linear Models; D008956:Models, Chemical; D009038:Motion; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013696:Temperature