Modeling and Simulation Analysis on Threedimensional Excitation Circular Vibrating Screen

Abstract

The Structure model of three-dimensional excitation circular vibrating screen was established. Then a dynamics analysis based on Lagrange equation was used to analysis this model. MATLAB modeling was utilized to solve centroid differential equations of motion. Centroid movement and other dynamics numerical image of the vibration screen can be obtained by numerical simulation on MATLAB. Simulation analysis shows that the amplitude can be changed by adjusting exciting force of upper and lower eccentric. The path curves of any point in screen surface, as well as material trajectory of screen surface can be modified by adjusting spatial phase angle of upper and lower eccentric. Further alternating vibration effects on amplitude, vibration intensity and other parameters can be obtained through this method. It is a valuable reference to resolving issues of clogging screen mesh and feeding unevenly.