DocumentCode
3073123
Title
Comparisons of two dynamic friction models
Author
Gäfvert, Magnus
Author_Institution
Dept. of Autom. Control, Lund Inst. of Technol., Sweden
fYear
1997
fDate
5-7 Oct 1997
Firstpage
386
Lastpage
391
Abstract
Two recent dynamic friction models, the LuGre model and a model by Bliman and Sorine, are investigated and compared. Comparisons are made of captured friction phenomena, behaviour at zero crossings of the velocity and computational issues. Limit cycles in position control of a simple servo with dynamic friction are investigated by means of single input describing function analysis. Both models give reasonable results in the describing function analysis. The LuGre model exhibits a richer behaviour in terms of friction phenomena. The Bliman-Sorine model can be problematic to use because of poor damping properties at zero crossings of the velocity
Keywords
friction; limit cycles; position control; servomechanisms; captured friction phenomena; computational issues; dynamic friction models; function analysis; limit cycles; position control; velocity zero crossings; Damping; Friction; Hafnium; Hardware; Limit-cycles; Position control; Servomechanisms; Solid modeling; Tail; Terminology;
fLanguage
English
Publisher
ieee
Conference_Titel
Control Applications, 1997., Proceedings of the 1997 IEEE International Conference on
Conference_Location
Hartford, CT
Print_ISBN
0-7803-3876-6
Type
conf
DOI
10.1109/CCA.1997.627584
Filename
627584
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