Influence Of Topological Changes On Mechanical Properties Of The New Mechanical Elastic Wheel

Focused on the new type of the mechanical elastic wheel, as the research object and based on the multi body structure of the wheel and the kneading wheel layered structure, the nonlinear finite element model of the mechanical elastic wheel was established in this paper. The finite element simulation analysis was carried out on the wheel by using the nonlinear finite element method and the mechanical properties of the wheel under different topological changes are compared and analyzed, which reveals the rule of influence of topological changes on the mechanical properties of the wheel, and provides a theoretical basis for the mechanical elastic wheel structure.(1) It elaborates on the system structure, working principle and performance advantages of the new type of elastic safety wheel and analyzes the bearing characteristics to get the bearing characteristics of the mechanical elastic wheel. According to the force analysis of the hinge unit, the relationship between the force and load of the hinge unit, the wheel radius, and the radial stiffness was revealed.(2) Based on working principle of the mechanical elastic wheel, simplified condition of the mechanical elastic wheel was proposed. Based on the simplified conditions, the simplified analysis model of the mechanical elastic wheel was established. Hierarchical structure, Rou wheel hinge structure, rubber material, contact coefficient and boundary conditions on the mechanical elastic wheel was set up. Considering the hinge structure of the mechanical elastic wheel’s finite element model was established, the finite element simulation revealed the basic mechanical properties of the mechanical elastic wheel.(3) The finite element model of the mechanical elastic wheel under different topology changes was established. Firstly, the changes of bearing characteristic and contact patch of the mechanical elastic wheel under different topology changes were compared so that the the influence of the topological changes on the bearing characteristic and the contact patch of the mechanical elastic wheel could be obtained. Secondly, the deflection of the wheel under different topology changes was discussed by using parameter analysis method so that the relation between topology change, load, and the deflection of the wheel could be obtained.