Stress Analysis of Vibrating Screen Side Plate based on Elastic Theory

Abstract

To achieve a more precise understanding of the stress distribution state of the side plate and support beam of the shaker box, a mechanical model for plane stress distribution has been established. This model is based on the plane stress theory of elastic theory. Furthermore, using this model, we have predicted the plane stress distribution of the shaker box's side plate and support beam when subjected to excitation forces generated by both unilateral and bilateral rotor arrangement structures. The findings indicate that the mechanical model rooted in elastic mechanics accurately depicts the stress distribution within the perforated side plate structure and screen support beam. Specifically, the peak stress in the side plate of a symmetrically distributed structure is merely half of that observed in a unilateral structure. Furthermore, the cumulative effect of shear stress on both sides of the side plate serves to mitigate the overall shear stress on the plate. Additionally, the planar stress within the support beam is exclusively influenced by the excitation force exerted by the vibrating screen on a single support beam.