Notice of RetractionOptimal sizing design of truss structures using modified binary particle swarm optimization (Modified BPSO)

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

In this paper, the optimal sizing design of truss structures with discrete variables is studied using modified binary particle swarm optimization (Modified BPSO), in this modified method different definitions in common binary PSO algorithm have been presented. The objective function considered is the total weight of the structure subjected to material and performance constraints in the form of stress and deflection limits. The Modified BPSO is population based optimization algorithm which was inspired by the social behavior of birds. Individual birds in the flock exchange information about their position, velocity and fitness, and the behavior of the flock is then influenced to increase the probability of migration to regions of high fitness. The calculation results show that the Modified BPSO is able to achieve better results in comparison with conventional mathematical, genetic algorithm and harmony search algorithm methods used in truss structures.