On the need for multifidelity approaches for multidisciplinary coupled systems
File(s)
Accepted version
Author(s)
Trambaiolo, Livia
Di Fiore, Francesco
Mainini, Laura
Type
Conference Paper
Abstract
In preliminary design, the Multidisciplinary Design Optimization (MDO) of coupled systems typically relies on simplified models to manage computational cost, yet low-fidelity representations introduce systemic risks that often remain overlooked. In tightly coupled configurations, local modeling inaccuracies can propagate across disciplines and distort the perception of feasible and optimal regions of the design space. This work argues that these risks are inherent to fidelity management in MDO and can be mitigated only through multifidelity approaches that efficiently integrate high-fidelity information. A re-entry vehicle optimization with tightly coupled aero–thermo–structural physics is used to expose these mechanisms, showing that multifidelity methods enable reliable multidisciplinary design while maintaining computational tractability.
Date Acceptance
2025-09-30
Citation
10th CEAS Aerospace Europe Conference and 28th AIDAA International Congress
Publisher
Materials Research Forum LLC
Journal / Book Title
10th CEAS Aerospace Europe Conference and 28th AIDAA International Congress
Copyright Statement
Subject to copyright. This paper is embargoed until publication.
Source
10th CEAS Aerospace Europe Conference and 28th AIDAA International Congress
Publication Status
Accepted
Start Date
2025-12-01
Finish Date
2025-12-04
Coverage Spatial
Turin, Italy