A Comparative Study of Multiobjective Optimization Methods in Structural Design

Authors : Mehmet SUNAR

Pages : 69-78

View : 17 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The computational algorithms of different multiobjective optimization techniques and their applications to structural systems are presented. The weighting, e -constraint, goal programming and modified game theory methods are described along with a comparative study of the results. The conflicting nature of the objective functions is studied through two multiobjective optimization problems. Specifically, the design of a 25-bar space truss and that of a satellite with flexible appendages are considered in numerical studies. The results from the multiobjective optimization methods are evaluated in terms of a supercriterion. It is concluded that the results obtained using the goal programming and modified game theory/goal programming approaches are properly balanced yielding the best compromise in the presence of conflicting objectives.
Keywords : Multiobjective optimization, objective function, structural design, supercriterion