Abstract:The three-dimensional model, discretization model, and contact model of heavy equipment and storage and transportation equipment were established based on ANSYS Workbench. The stiffness and strength state of the hyperstatic storage and transportation device were calculated using storage and lifting as typical working conditions, while the strength of storage and transportation equipment was evaluated based on Mises yield theory. By adjusting the stiffness of the load-bearing parts, the force distribution of each load-bearing part of the storage and transportation device was optimized, and the rationality of the stress distribution of the steel frame nodes was improved. The results indicate that the finite element method can provide design and optimization basis for storage and transportation devices with hyperstatic structures.