Title: Identification of the GMS friction model based on a robust adaptive observer
Author: Said Grami, Pascal Bigras
Department of Automated Manufacturing Engineering, University of Quebec, 1100, Notre-DameWest Street, Montreal, Quebec H3C 1K3, Canada.
Department of Automated Manufacturing Engineering, University of Quebec, 1100, Notre-DameWest Street, Montreal, Quebec H3C 1K3, Canada
Abstract: The identification of the Generalised Maxwell Slip (GMS) friction model is presented in this paper. An approximation is proposed to make the friction model linear over its unknown parameters. A bounded disturbance is used to model the approximation error. A robust observer is then applied to estimate the unknown parameters in spite of the approximation error. The approximated friction model is filtered to render it appropriate for use by the observer. Simulation results are presented to prove the efficiency of the observer in estimating the frictional force even though the model has been approximated.
Keywords: generalised Maxwell slip; GMS friction model; identification; robust adaptive observer; simulation.
Int. J. of Modelling, Identification and Control, 2008 Vol.5, No.4, pp.297 - 304
Available online: 25 Feb 2009