COMPARATIVE ANALYSIS OF ALGORITHMS FOR SETTING AND MAINTAINING THE RESONANT MODEOF VIBRATION MACHINE OPERATION
Vibratory transport-technological machines with unbalanced vibration exciters (vibration conveyors, vibrating screens, vibratory feeders, etc.) with automatic maintenance of the resonant mode of vibrations when the processed material mass changes are considered. Two possible control algorithms are proposed: based on a PID controller and using a dynamic portrait, which is a numerical form of a functional relationship between a controlled and controlled parameter for all possible system states. A technique for carrying out numerical experiments on a mathematical model of a vibrating screen (a digital twin of the vibrating machine) is described. The results of a comparative analysis of both algorithms resonant mode tuning quality are given for an adjusted law of processed material mass change.