Abstract
In web transport systems, the main concern is to independently control speed and tension in spite of perturbations such as radius variations and changes of setting points. So far, simulation models representing web handling systems have only dealt with continuously rolling web without considering friction between web and rollers. This article aims at introducing the modeling of friction as well as the risk for the web to slide on traction rollers. The influence of several physical factors on the occurrence of such sliding is studied. In this paper, we focused on analyzing the special case of an emergency shutdown.The authors observed and analyzed the consequences of several controllers on the occurrence or not of sliding. An approach for defining the optimal command to decrease the speed as fast as possible in the case of an emergency shutdown without occurrence of sliding is proposed.
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