Symbiotic Organisms Search for Optimum Design of Frame and Grillage Systems

This paper presents most recent meta-heuristic algorithm, symbiotic organisms search (SOS), for optimum design of structures. The SOS simulates the symbiotic interaction strategies adopted by organisms to survive and propagate in the ecosystem. Due to some difficulties on finding optimum design of frame structures and grillage systems, this problem is known as one of benchmark examples in the field of structural optimization. Therefore, the new algorithm is adapted to find optimum design of structures. The performance of the algorithm is then evaluated by comparing with some other methods. The results confirm the validity of the new algorithm.