Friction Modeling and Control in Boundary Lubrication

It has been known for many years that stick-slip can often be eliminated from a system by stiffening it. More recently, it has been shown that for a negatively-sloped friction-velocity curve, a frictional lag must be present for machine stiffness to produce this stabilizing effect [2,10]. In this pa...

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Bibliographic Details
Published inAmerican Control Conference, 1993 pp. 1910 - 1915
Main Authors Dupont, Pierre E., Dunlap, Eric P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.1993
Subjects
Aerospace engineering
Friction
History
Lubricants
Lubrication
Mechanical engineering
Stability
Steady-state
Steel
Stress
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ISBN0780308603
9780780308602
DOI10.23919/ACC.1993.4793210

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Summary:It has been known for many years that stick-slip can often be eliminated from a system by stiffening it. More recently, it has been shown that for a negatively-sloped friction-velocity curve, a frictional lag must be present for machine stiffness to produce this stabilizing effect [2,10]. In this paper, experiments involving dry and lubricated line contacts of hardened tool steel are described and a state variable friction model possessing this lag is fit to the data. The model and associated parameter values provide a means for computing lower bounds on the PD gains necessary for steady motion in the boundary lubrication regime.
ISBN:0780308603
9780780308602
DOI:10.23919/ACC.1993.4793210