نبذة مختصرة : Metal frame structures are widely used in mechanical engineering, construction, production of advertising media and household products. Classical methods of their design and calculation are quite laborious and costly. Significant advantages in modeling and analysis can be provided by the Autodesk Inventor program, namely the Frame Generator, which is part of the library of components of this program. The paper explores the algorithm for using the Frame Generator of the Autodesk Inventor program and tests it when building a model of a classic chair, which is based on a steel frame structure of a square profile. All the main stages of work on the model are considered: building a 3D-sketch of the chair frame, assigning the nomenclature, standard size and material of the standard profile, making joints and preparing the edges of individual elements for welding, final modeling of the welded frame structure. The stress-strain state of the designed product under the action of external loads was calculated both in the "Frame Analysis" environment and in the more universal "Stress Analysis" environment of the Autodesk Inventor program. The obtained results are compared and their high convergence is confirmed. On the basis of the conducted research, an educational task was prepared and tested for students of technical specialties of the Kharkiv National Automobile and Highway University. Its implementation allows, using the presented algorithms, to proceed to the modeling and analysis of more complex frame structures. The paper shows how, using the above algorithms, using the Frame Generator, the author's work, a chair of modern design, can be performed and analyzed. The efficiency of using the Autodesk Inventor program in this case also lies in the fact that, thanks to parameterization, the length of each element of a three-dimensional model of a metal structure, their relative position and profile size can be quickly changed in order to obtain the optimal geometry. The results of the work can be used in the educational ...
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