Robust Optimization of a Wing Under Structural and Material Uncertainties

Komahan Boopathy, Markus P. Rumpfkeil, Raymond M. Kolonay
2015 17th AIAA Non-Deterministic Approaches Conference   unpublished
This paper demonstrates structural sizing optimizations of a fighter wing configuration in the presence of uncertainties in structural parameters and material properties. The design variables and input parameters are considered to have uncertainties and are treated as aleatory and epistemic random variables in the optimization process. The aleatory uncertainties are quantified and propagated via inexpensive sampling of kriging surrogate models, whereas the epistemic uncertainties are propagated
more » ... using a box-constrained optimization approach. The considered loading condition arises from trimmed flight at a 220 • /s roll maneuver. The resulting designs are shown to be robust against input anomalies to desired probabilistic levels.
doi:10.2514/6.2015-0920 fatcat:435rwt556vdybph7ec7bebtfem