Equality Constraints in Multiobjective Robust Design Optimization: Decision Making Problem

S. Rangavajhala, A. A. Mullur and A. Messac ()
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S. Rangavajhala: Rensselaer Polytechnic Institute
A. A. Mullur: Rensselaer Polytechnic Institute
A. Messac: Rensselaer Polytechnic Institute

Journal of Optimization Theory and Applications, 2009, vol. 140, issue 2, No 9, 315-337

Abstract: Abstract Robust design optimization (RDO) problems can generally be formulated by incorporating uncertainty into the corresponding deterministic problems. In this context, a careful formulation of deterministic equality constraints into the robust domain is necessary to avoid infeasible designs under uncertain conditions. The challenge of formulating equality constraints is compounded in multiobjective RDO problems. Modeling the tradeoffs between the mean of the performance and the variation of the performance for each design objective in a multiobjective RDO problem is itself a complex task. A judicious formulation of equality constraints adds to this complexity because additional tradeoffs are introduced between constraint satisfaction under uncertainty and multiobjective performance. Equality constraints under uncertainty in multiobjective problems can therefore pose a complicated decision making problem. In this paper, we provide a new problem formulation that can be used as an effective multiobjective decision making tool, with emphasis on equality constraints. We present two numerical examples to illustrate our theoretical developments.

Keywords: Robust design optimization; Equality constraints; Uncertainty (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s10957-008-9442-y

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