Structural design optimization including quantitative manufacturing aspects derived from fuzzy knowledge

An innovative method for quantification of qualitative information within the framework of multidisciplinary structural optimization is presented in this thesis. The focus is on manufacturing aspects which are described by fuzzy data and expert knowledge. The method is applied to optimization of lightweight space frame parts. Manufacturing aspects change the optimal profile cross sections of extruded profiles and allow for trade-offs with respect to mass and manufacturability. The method is able to integrate otherwise neglected information into structural optimization, expand the problem formulation and finally gain additional insight into the optimal design.