ASSESSMENT OF THE INFLUENCE OF DIFFERENT FORMS OF FRAME STRUCTURE FOR ITS STRENGTH

The article sets the task of optimizing the frame structure in order to reduce its own weight, taking into account the identification of the occurrence of a destruction factor. The search for a solution is carried out using evolutionary modeling, which in turn includes the choice of a mechanical model and a numerical model. The computational scheme includes the following main stages: finding, on the basis of optimal design, a design option that meets the requirements of the customer, performing calculations of this object in a static formulation under conditions of local damage, implementing a sequence of evolutionary syntheses of the structure when performing calculations of deformations of damaged systems. Based on the results of this check, the initial assumptions for the calculation can be corrected and the optimization procedures can be repeated. The calculation in a static setting is implemented within the framework of the deformation theory of elasticity, taking into account the influence of external loads. This task was implemented using the modern ANSYS software package. Thus, a comparison was made of various versions of the load-bearing frames of wheeled vehicles. The influence of the shape and weight of the structure on the strength under certain types of loading is determined. It is shown that when applying a certain type of design optimization, it is possible to increase the strength of the structure with an additional reduction in its weight.
Keywords: Ansys, frame structure, 3D model optimization, static problem, elasticity theory, weight optimization, structural strength, finite elements