A new parallel Genetic Algorithm scheme in structural design optimisation

8th International Conference on the Application of Artificial Intelligence to Civil, Structural and Environmental Engineering, AICivil-Comp 2005 --30 August 2005 through 2 September 2005 -- Rome --The considerable efficacy of Genetic Algorithm (GAs) in structural optimisation motivates to emergent assertive and progressive strategies. This paper presents a new parallel genetic algorithm (PGA) scheme (AMGAwFBD/I). In this scheme, the movement in the search region is performed through an asynchronous migration having an assimilation property in two distinct parallel phases. an asynchronous migration based on feasible solutions obtained from the search, controls both infusion and diffusion processes using a control mechanism. In addition, usage of traditional genetic algorithm operators is included into the search. AMGAwFBD/I is evaluated on 5 different structural design optimisation problems with design variables of discrete type. In all example problems, this work produced improved results compared to previous works. AMGAwFBD/I is demonstrated to be an robust PGA method. © Civil-Comp Press, 2005