Robust design under mixed aleatory/epistemic uncertainties using gradients and surrogates

Journal of Uncertainty Analysis and Applications

Table 7 Comparison of NLMC and Kriging predictions for the optimal design with six shape design variables obtained for k =2

	${\bar{C}}_{d_{max}}$	$σ_{C_{d_{max}}}^{2}$	${\bar{C}}_{l_{min}}$	$σ_{C_{l_{min}}}$
NLMC (3,000 optimizations)	3.33×10^-3	2.3×10^-7	0.640	2.0×10^-2
Kriging (13 optimizations) (Ñ=3,000)	3.33×10^-3	1.8×10^-7	0.640	2.0×10^-2
Kriging (13 optimizations) (Ñ=10⁵)	3.28×10^-3	2.0×10^-7	0.640	2.0×10^-2