Chaos-based firefly algorithms for optimization of cyclically large-size braced steel domes with multiple frequency constraints

Abstract

The success of the search in the firefly algorithm is highly dependent on a good balance between exploration and exploitation. Although, the basic firefly algorithm is relatively efficient; two chaotic firefly algorithms based on Logistic map (CLFA) and Gaussian map (CGFA) have been presented to improve basic FA. As numerical examples, some large-scale domes are designed for multiple frequency constraints optimization. Despite the fact that these problems are highly nonlinear, results illustrate a desirable performance of the algorithms in both obtaining lower weight and having a higher convergence rate.