Fully Stressed Structure Design Using Ranked BESO

摘要

Ranked Bidirectional Evolutionary Structural Optimization (R-BESO) method isrnone of the topology optimization using the evolutionary algorithm. The method mayrnget an optimum design at less iteration number comparing with the previous severalrnESO methods. It includes the displacement sensitivity analysis by nodalrndisplacement to determine the rank for each free edge or free surface of therncandidate elements having any free edge or free surface. In this study, developed RBESOrnmethod is introduced to search the topology of a fully stressed structure underrnseveral mechanical environments. Considered design problems are nozzle problems,rnwhich are 2 dimensional axisymmetric structures, and a bracket problem, which is arn3 dimensional structure.