MIT Department of Electrical Engineering & Computer Science

E E C S

Friction Models and Friction Compensation

Karl Johan Astrom
Lund Institute of Technology, Sweden

Thursday, October 14, 1999
4:00 PM (reception following)
Room 35-225
LIDS Colloquium

Abstract

Friction appears in all mechanical systems and has a significant impact on control. Successful design of mechatronic systems requires an understanding of the effects of friction as well as techniques to compensation. Friction phenomena are complicated because they are caused by many different physical mechanisms. Friction can cause a substantial deterioration of the performance of a control system. Typical effects are steady state errors and oscillations. Many attempts have been made to compensate for friction. Early efforts include introduction of dither signals. Other ideas are to based on model based control. This talk reviews several models for friction that have been useful to model friction in motion control systems and to compensate for effects of friction. Results from experiments with friction compensation are also presented.


URL of this page: http://www-eecs.mit.edu/AY99-00/events/9.html
Created: Oct 12, 1999  | Modified: Oct 23, 1999
This event is from the MIT EECS 1999-00 archive.  | Current events
To MIT EECS home page  | Your comments and inquiries are welcome.