1109 Shape Optimization of Continuum Shell Structure and Stability of the Solution Using Firefly Algorithm

Abstract

Firefly algorithm (FA) has been used as analysis procedure that can obtain not only a global optimal solution but also local optimal solutions by setting multiple computational parameters. Here, to simplify the setting of these computational parameters and improve the search performance of the high-dimensional problem, we implement two operations that a dimensionless distance of design variable space, and the clustering of design variable space. In this study, FA including these operations is applied shape optimization problem of continuum shell structure, and then the effectiveness and stability of the solution using FA are indicated through these results.