APPLICATION OF COMPUTER-INTEGRATED TECHNOLOGIES IN MODERN ENGINEERING SYSTEMS

Abstract

In modern conditions of development, analysis of the strength of parts is impossible without the comprehensive use of modern computer-aided design systems, one of which is the SolidWorks CAD/CAE system and its application – SolidWorks Simulation. This work deter-mines the dependence of the maximum stress acting on the gear block of the drum of the UVN-74 vacuum spraying installation at full load on the number of finite elements of its mod-el. The first stage in analysing the stress-strain state of a gear blocking the SolidWorks Simu-lation environment is to select the type of study (static analysis) and its material. The next stages are the selection of attachment points (fixed geometry), the application of external loads, and the creation of a finite element model of the gear block. To solve the static prob-lem, the parameter “at nodes” is set for the Jacobian check, and to obtain reliable results, the “curvature-based” mesh creation algorithm is activated. To avoid errors related to mesh density, the optimal number and size of finite elements were selected. SolidWorks Simulation software, taking into account the connections between the elements of the created mesh, cre-ated algebraic equations that relate the reaction to the material property of the gear block, the constraint, and the loads. After arranging the equations into a common system, diagrams of stresses, displacements, deformations and safety margin were created. Analysis of the stress diagram established that this loading mode occurs within permissible limits, but exceeding the total displacements by more than permissible ones can lead to unpredictable results during the operation of the gear block. To determine the exact values of the total dis-placements, their probing at critical points was used. The dependence of the maximum stress acting on the gear block at full load on the number of finite elements was determined.