Automatica (Journal of IFAC)
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The damping of structural vibrations using dry friction is an effective control method for many vibration problems. The strong nonlinear nature of friction has however made the theoretical and experimental investigations much more difficult than for linear control methods. This paper first outlines an experimental setup implementing an ideal frictionally damped Single-Degree-Of-Freedom (SDOF) oscillator through the use of an electrodynamic shaker to study friction damping. By relating the shaker current to the force input and including the shaker armature dynamics in the modelling of the experimental setup, it is shown that the ideal frictionally damped SDOF can be realized. The second part of this paper intends to determine a suitable friction model for small amplitude (