Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Application of a methodology for topological optimization of gears
Submission Author:
luis gabriel de jesus beltrão , BA
Co-Authors:
luis gabriel de jesus beltrão, Fabiano Borges
Presenter: luis gabriel de jesus beltrão
doi://10.26678/ABCM.COBEM2023.COB2023-0729
Abstract
The popularization of additive manufacturing in the industry allows the creation of more complex products. In this way, topological optimization, an engineering technique that uses algorithms to determine the best distribution of material in a structure, becomes increasingly common. In view of this, in order to corroborate the use of topological opti- mization, the creation of methodologies is observed in the literature, however, most are not practical and, not infrequently, are not very instructive. In this sense, this work aims to apply the topological optimization process to minimize the mass of a gear for power transmission, through the engineering software Solidworks. Together, the creation of a workflow neces- sary for the best efficiency in the development of this type of project will be carried out. For this, topology optimization and generative design were used with the help of Solidworks software, the mass minimization algorithm was adopted, seeking the most appropriate stress distribution, improved aesthetics and the best performance while maintaining the displace- ments and safety factor (FS) established by current regulatory standards. Thus, firstly, a structure of primitive geometry was modeled in a computer-aided manufacturing software (or CAM, Computer Aided Manufacturing), just detailing the fixation locations, then the simulation was carried out by finite element method (or FEM, Finite Element Method) that takes into account loads, thermal requests and vibration, from this, a topological optimization study was generated based on mass reduction, for which it was defined which parts should not be changed and in sequence the algorithm was applied, obtaining an optimized model. Finally, it was necessary to implement a new design seeking a more suitable functionality and aesthetics in its application. In this logic, the path to obtain a project with low cost and better performance with economy of development time through process automation was discussed. For the aforementioned study, he highlighted the practical application of these techniques when optimizing a cylindrical gear with straight teeth, resulting in a 70% reduction in the mass of the final part. This illustrates the importance of computer modeling to validate the optimization process and determine the best manufacturing method. . Thus, we continue on a path that seeks to advance towards the creation of new technologies that are increasingly optimized.
Keywords
Mass reduction, static simulation, ECDR, Additive manufacturing
