A control system design for the positioning system of an unloading machine

This paper presents the design of a classical controller in order to improve the horizontal positioning system of an unloading machine. The root locus method is used to design the controller, based on an approximate transfer function model of the actual process. The model was obtained through parametric identification. Using the proposed controller we have obtained better performance in terms of overshoot and settling time, while the unloading arm oscillations were reduced with more than seventy percent and the settling time was reduced with more than thirty percent. The assessment of the new automatic horizontal positioning system is made by simulation.