Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
STRUCTURAL TOPOLOGY OPTIMIZATION OF A FLUID-STRUCTURE SYSTEM WITH UNSTRUCTURED MESH
Submission Author:
João Baptista Dias Moreira , RS
Co-Authors:
João Baptista Dias Moreira, Emanuel Moutinho Cesconeto, EDERVAL LISBOA, Fernanda Link, Walter Jesus Paucar Casas
Presenter: João Baptista Dias Moreira
doi://10.26678/ABCM.COBEM2017.COB17-2404
Abstract
This paper presents an improved algorithm for the bi-directional evolutionary structural optimization (BESO) method for topology optimization problems, that will perform the optimization, or maximization, of the stiffness of a structure while its structural volume is gradually removed, with the goal of obtaining a structure that possesses a maximized stiffness while utilizing a fraction of its materials. This structure may be part of a fluid-structural system and be subjected to static external loads, as well as loads imposed by the fluid. The discretization can be done with a unstructured and irregular mesh, and the BEFSO (Bi- Directional Evolutionary Fluid-Structural Optimization) method is used. The developed algorithm was capable of optimizing cases found in the literature for its validation, and was also applied to cases not easily solved by conventional methods, which usually adopt regular meshes or commercial software.
Keywords
Topology optimization, FEM, Fluid-Structure, Unstructured Mesh
