Integrated multi-objective robust optimization and sensitivity analysis with irreducible and reducible interval uncertainty

Integrated multi-objective robust optimization and sensitivity analysis with irreducible and reducible interval uncertainty

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Article ID: iaor20105496
Volume: 41
Issue: 10
Start Page Number: 889
End Page Number: 908
Publication Date: Oct 2009
Journal: Engineering Optimization
Authors: , , , , ,
Abstract:

Uncertainty considered in robust optimization is usually treated as irreducible since it is not reduced during an optimization procedure. In contrast, uncertainty considered in sensitivity analysis is treated as partially or fully reducible in order to quantify the effect of input uncertainty on the outputs of the system. Considering this, and the usual existence of both reducible and irreducible uncertainty, an approach that can perform robust optimization and sensitivity analysis simultaneously is of much interest. This article presents such an integrated optimization model that can be used for both robust optimization and sensitivity analysis for problems that have irreducible and reducible interval uncertainty, multiple objective functions and mixed continuous-discrete design variables. The proposed model is demonstrated by two engineering examples with differing complexity to demonstrate its applicability.

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