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• W2953667433 abstract "Abstract We consider the problem of selecting among different physics-based computational models of varying, and oftentimes not assessed, fidelity for evaluating the objective and constraint functions in numerical design optimization. Typically, higher-fidelity models are associated with higher computational cost. Therefore, it is desirable to employ them only when necessary. We introduce a relative adequacy framework that aims at determining whether lower-fidelity models (that are typically associated with lower computational cost) can be used in certain areas of the design space as the latter is being explored during the optimization process. We implement our approach by means of a trust-region management framework that utilizes the mesh adaptive direct search derivative-free optimization algorithm. We demonstrate the link between feasibility and fidelity and the key features of the proposed approach using two design optimization examples: a cantilever flexible beam subject to high accelerations and an airfoil in transonic flow conditions." @default.
• W2953667433 created "2019-07-12" @default.
• W2953667433 creator A5035388350 @default.
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• W2953667433 date "2019-10-16" @default.
• W2953667433 modified "2023-10-18" @default.
• W2953667433 title "A Relative Adequacy Framework for Multi-Model Management in Design Optimization" @default.
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• W2953667433 doi "https://doi.org/10.1115/1.4044109" @default.
• W2953667433 hasPublicationYear "2019" @default.
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