Manifold alignment-based multi-fidelity reduced-order modeling applied to structural analysis

Autor: Christian Perron, Darshan Sarojini, Dushhyanth Rajaram, Jason Corman, Dimitri Mavris
Rok vydání: 2022
Předmět:
Zdroj: Structural and Multidisciplinary Optimization. 65
ISSN: 1615-1488
1615-147X
Popis: This work presents the application of a recently developed parametric, non-intrusive, and multi-fidelity reduced-order modeling method on high-dimensional displacement and stress fields arising from the structural analysis of geometries that differ in the size of discretization and structural topology.The proposed approach leverages manifold alignment to fuse inconsistent field outputs from high- and low-fidelity simulations by individually projecting their solution onto a common subspace. The effectiveness of the method is demonstrated on two multi-fidelity scenarios involving the structural analysis of a benchmark wing geometry. Results show that outputs from structural simulations using incompatible grids, or related yet different topologies, are easily combined into a single predictive model, thus eliminating the need for additional pre-processing of the data. The new multi-fidelity reduced-order model achieves a relatively higher predictive accuracy at a lower computational cost when compared to a single-fidelity model.
The peer-reviewed and corrected version of this article has been accepted for publication in the Structural and Multidisciplinary Optimization Journal
Databáze: OpenAIRE
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