Abstract
During the mechanical product design process, design engineers must pay close attention to numerous aspects of machine products. When a design optimization is applied to such design problems, multiobjective optimization schemes allow these aspects to be simultaneously considered. Especially for large-scale mechanical products, obtaining the global optimum solution for this kind of problem can be problematic, since the number of mechanical characteristics to be taken into account becomes unwieldy and there are complex trade-off relations between the various characteristics. This paper proposes a design optimization method for large-scale optimization problems based on hierarchical decomposition of mechanical characteristics.
