Abstract

MENDOZA-SAN-AGUSTIN, A.; VELAZQUEZ-VILLEGAS, F.  and  ZEPEDA-SANCHEZ, A.. Adaptation of Topologic Optimized Structures Based on Skeletonization. Ingenier. mecáni. tecnolog. desarroll [online]. 2016, vol.5, n.4, pp.415-421. ISSN 1665-7381.

The structural design based on optimization methods is very efficient in generating structures of minimum weight, maximum stiffness, etc.; nevertheless, it has the disadvantage of producing very complex geometries, whose manufacture is difficult or unfeasible. Therefore, these geometries have to be adapted to manufacturing processes, obtaining in this way feasible design solutions. During this adaptation process, several optimal characteristics are lost. In order to minimize this loss the authors propose an adaptation method, based on skeletonization, for topological solutions. The objective is to generate a manufacturable structure from a topological solution considering standard structural members. In this work, an algorithm to interpret and adapt the topological solution was developed. Skeletonization is applied to obtain a simpler representation of the optimal solution without losing its topology. The result is transformed in a set of straight lines joined by vertices. These lines are replaced by standard members, whose cross-section is parameterized. By applying size optimization, the dimensions of this cross-section are defined. As an example the method is applied to design an optimal short cantilever beam, showing a final structure completely manufacturable, whose topological characteristics are preserved.

Keywords : Optimal Design; Structural Design; Skeletonization.

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