اميرعلي رضايي زاده

Nowadays, optimal approaches to engineering problems are inevitable due to the lack of resources, high economic costs, and environmental issues. So, engineers are always trying to design engineering systems in a way that maximizes efficiency while reducing costs. Finding optimal designs for complex engineering problems that simultaneously achieve multiple objects requires advanced and efficient tools. In recent years, multi-objective metaheuristic algorithms have proven their efficiency in solving such problems. They have become a popular way to solve real-world optimization problems due to their features, such as derivative-free and easy implementation. In this research, a new multi-objective metaheuristic algorithm has been introduced that has a high convergence speed. This algorithm can provide better results than its competitors in various problems with fewer eva‎luations. It is suitable for use in problems in which the eva‎luation of objective functions is time-consuming, and it is not possible to perform a large number of eva‎luations. In order to validate the algorithm, 30 mathematical benchmark functions and seven large-scaled structural optimization problems have been used. These problems include various structures, such as truss, frame, double-layer grid, and buildings equipped with MR dampers. Studying the results obtained from the algorithms showed that the proposed algorithm can outperform its competing algorithms and has a reliable performance in solving structural problems. Furthermore, the results of this study demonstrated the advantages of using optimization in structural design; for example, it was observed that more dampers on all stories would not necessarily increase the energy absorption capacity of the structure. In order words, using optimization can be achieved better structural seismic control with fewer dampers while reducing costs.

بهينه سازي چندهدفه , الگوريتم هاي فراابتكاري , طراحي سازه , ميراگر MR

Multi-objective optimization , Meta-heuristic algorithm , structural design , MR damper

amirali rezaeizadeh

dr.ilchi ghazaan, dr.ghaderi