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Vibration reduction abilities of some jerk-controlled movement laws for industrial machines

Authors:Béarée Richard, CETIM, France, Metropolitan
Barre Pierre-Jean, ENSAM Lille, France, Metropolitan
Hautier Jean-Paul, ENSAM, France, Metropolitan
Topic:2.1 Control Design
Session:Robot and Position Control
Keywords: Jerk profiles, Residual vibrations, Movement law, Lumped constant models, Industrial machines

Abstract

Vibration-free positioning is a basic objective in industrialhigh-speed systems, i.e. systems for which axes are submitted tosignificant dynamical demands. The focus of this paper is on thepragmatic formalisation of the influence of some jerk-controlledmovement laws on the residual vibrations. Analysis ofconstant-jerk, harmonic-jerk and minimum-jerk laws is conducted ona simplified axis drive model that accounts for axis controlparameters and for predominant mode effects. Experimentalmeasurements performed on industrial test-setups demonstrate theeffectiveness of the proposed approach in estimating the evolutionof the vibration level according to each movement law.