Optimal Design Of Stiffened Panels Considering Torsion Of Supporting Stiffeners

Aiming at the optimal design and analysis of stiffened panels, this paper proposes a new algorithm considering the torsion of supporting stiffeners on axial load carrying capacity. By defining three dimensionless factors: relative bearing capacity, relative transverse elastic stiffness and relative torsional elastic stiffness, the response surface of load-bearing capacity versus two kinds of elastic stiffness is obtained. Based on genetic algorithm, a lightweight optimization model for structure layout and section parameters is established. A certain stiffened panel is optimized on this basis, and the matching design relationship between two kinds of stiffeners is summarized.