Study of brake systems performance by the finite element method

Abstract

The purpose of this study was to develop a methodology for assessing the impact of material characteristics on the operation of pneumatic stoppers widely used in robotic systems of packaging lines. For this purpose, a detailed numerical analysis of the three-dimensional model of the stopper was carried out in the LS-DYNA environment. The research led to the following conclusions: material characteristics have a significant impact on the durability and reliability of pneumatic brakes; bronze, as a material for friction jaws, has limited durability under cyclic loads. The modeling results confirm the hypothesis that cyclic

loads on the crimping surface of the bronze sponge cause significant plastic deformations. This

leads to a decrease in its geometric dimensions, a change in its original shape, and, as a result, a decrease in the efficiency of stem fixation. In parallel with the deformation, intensive wear of the sponge material occurs due to abrasive and adhesive effects on the surface of the stainless steel rod. The results obtained can be used to develop new design solutions and select optimal materials for friction pairs.