Application of Memetic Algorithms in Multi-Criteria Structural Optimization

Abstract

The goal of this paper is to present new innovative algorithms for discrete structural optimization of problems involving multi-criteria objective function, which contains stress, displacement and frequency constraints. The algorithm is tested on a shell finite element structure, whose optimization variables are geometrical parameters and shell thicknesses. Performance of memetic algorithm will be compared with genetic algorithm.

Keywords

• memetic algorithm
• genetic algorithm
• structural optimization
• multi-criteria optimization
• modal analysis
• buckling analysis
• static analysis