MeshODENet: A Graph-Informed Neural Ordinary Differential Equation Neural Network for Simulating Mesh-Based Physical Systems

arXiv:2509.18445 · cs.LG, physics.app-ph · Submitted 2025-09-22 · Read on arXiv

cs.LG, physics.app-ph

Submitted: 2025-09-22

Updated: 2025-09-22

Comments: 9 pages, 7 figures

Journal ref: Journal of Applied Mechanics, 93(5), 051005 (2026)

DOI: 10.1115/1.4071488

Code: https://github.com/leixinma/MeshODENet

License: http://creativecommons.org/licenses/by/4.0/

The gist: The simulation of complex physical systems using a discretized mesh is a cornerstone of applied mechanics, but traditional numerical solvers are often computationally prohibitive for many-query tasks.

Terminology

Abstract

The simulation of complex physical systems using a discretized mesh is a cornerstone of applied mechanics, but traditional numerical solvers are often computationally prohibitive for many-query tasks. While Graph Neural Networks (GNNs) have emerged as powerful surrogate models for mesh-based data, their standard autoregressive application for long-term prediction is often plagued by error accumulation and instability. To address this, we introduce MeshODENet, a general framework that synergizes the spatial reasoning of GNNs with the continuous-time modeling of Neural Ordinary Differential Equations. We demonstrate the framework's effectiveness and versatility on a series of challenging structural mechanics problems, including one- and two-dimensional elastic bodies undergoing large, non-linear deformations. The results demonstrate that our approach significantly outperforms baseline models in long-term predictive accuracy and stability, while achieving substantial computational speed-ups over traditional solvers. This work presents a powerful and generalizable approach for developing data-driven surrogates to accelerate the analysis and modeling of complex structural systems.

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