Computer system of vibration analysis for evaluating extrusion equipment operability at productions of multi-assortment polymeric films

Abstract

Abstract A computer system of vibration analysis has been developed to evaluate the operability of extrusion equipment. The computer system allows you to timely identify an abnormal situation associated with increased vibration of the extruder screw drive, determine its true cause and form recommendations to the production staff for troubleshooting. The computer system is configured for various types and geometric parameters of extruders used in the extrusion and extrusion-calender production of multi-assortment polymeric films. The algorithm for analyzing vibration signals includes the stages of obtaining the signal spectrum by applying a direct discrete Fourier transform and determining the faulty drive element as a result of analyzing the trend in the amplitudes of the signal harmonics at frequencies characteristic of various types of faulty elements. The computer system is integrated into a single quality control system for multi-assortment polymeric films. The results of testing according to the data of extruders of polymeric film production at plants in Russia and Germany confirmed the performance of the computer system. The use of a computer system allows you to save the life of the extrusion equipment, increase the time periods between its stops, and reduce the repair time.