Abstract :
THE PRESENCE OF COULOMB (or “rubbing”) friction in feedback control systems often results in undesirable effects, such as an operating dead-zone, low-frequency wander, and poor dynamic performance for low-level signals. In some systems, however, coulomb friction may have a stabilizing effect. This article describes a method of predicting the effect of coulomb friction on static and dynamic performance. Methods of introducing compensation are discussed for systems in which coulomb friction has an undesirable effect.
