论文标题

基于歧管对准的多余度降低阶数模型应用于结构分析

Manifold Alignment-Based Multi-Fidelity Reduced-Order Modeling Applied to Structural Analysis

论文作者

Perron, Christian, Sarojini, Darshan, Rajaram, Dushhyanth, Corman, Jason, Mavris, Dimitri

论文摘要

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子空间。该方法的有效性在两个多保真场景上证明,涉及基准翼几何形状的结构分析。结果表明,使用不兼容的网格或相关但不同的拓扑结构模拟的输出很容易组合为单个预测模型,从而消除了对数据进行其他预处理的需求。与单前生模型相比,新的多保真降低模型在较低的计算成本下实现了相对较高的预测精度。

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.

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