27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS2010-P6.11

A COMPARISON BETWEEN DRY FRICTION DISCONTINUOUS COMPUTATIONAL ALGORITHMS

L. Borello, P. Maggiore, G. Villero, M. D. L. Dalla Vedova
Politecnico di Torino, Italy

Keywords: servomechanisms, coulomb, friction algorithm, actuator

The present work compares the abilities of different friction computational methods selected as the most common discontinuous ones, such as SIGN function, hyperviscous, Karnopp, Quinn and the friction model proposed by authors in previous works; to the purpose, an electrohydraulic servomechanism having hydraulic piston and electrohydraulic servovalve is considered.

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