Shape optimization of thin-walled beam-like structures

摘要

This article presents a methodology for optimizng the shape of thin-walled structures having a beam-like dynamic behavior. The equivalent nominal beam, characteristics (quadratic moments of inertia, torsional rigidity, etc.) of a refined fined finite element model are determined from a direct calculation based on explicit equations which are functions of the nodal coordi- nates defining the cross-sectional geometry.