Abstract:

The energy absorber uses a micro-element lattice structure designed to be used for hydraulic supports to increase the energy absorption and improve the safety of the supports. The article uses the analytical method based on the theory of material strength, combined with a numerical simulation method to investigate the influence of structure parameters of pyramidal micro-element on the energy absorption performance of energy absorber. The analysis shows that increasing the diameter of struts of pyramidal micro-element can increase force resistance capacity as well as the energy absorption capacity of energy absorber, vice versa increase the bottom width and height of micro-element can reduce the energy absorption capacity of energy absorber.