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Worst-case robust design optimization under distributional assumptions. (English) Zbl 1242.76299
Summary: Presented in this paper is a novel robust design optimization (RDO) methodology. The problem is reformulated in order to relax, when required, the assumption of normality of objectives and constraints, which often underlies RDO. In the second place, taking into account engineering considerations concerning the risk associated with constraint violation, suitable estimates of tail conditional expectations are introduced in the set of robustness metrics. A computationally affordable yet accurate implementation of the proposed formulation is guaranteed by the adoption of a reduced quadrature technique to perform the uncertainty propagation. The methodology is successfully demonstrated with the aid of an industrial test case performing the sizing of a mid-range passenger aircraft.

##### MSC:
 76N25 Flow control and optimization for compressible fluids and gas dynamics 65K10 Numerical optimization and variational techniques
##### Software:
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