arXiv:2501.06925cs.LG2025-01被引 4

用深度学习+虚拟元法,高效预测梁的变形分布。

A Hybrid Virtual Element Method and Deep Learning Approach for Solving One-Dimensional Euler-Bernoulli Beams

  • 结合虚拟元法与神经网络,分离处理节点和材料数据
  • 仅用少量数据即可准确预测不同参数下的位移场
  • 适合需要快速仿真且参数多变的结构力学研究

本文提出一种融合虚拟元法(VEM)与深度学习的混合框架,用于求解一维欧拉-伯努利梁问题。目标是构建一个数据驱动的代理模型,能在不同材料和几何参数下高效预测位移场。基于VEM处理高阶多项式和非一致离散化的能力,该方法为结构力学提供了稳健的数值基础。引入神经网络架构,分别处理节点与材料特定数据,有效捕捉复杂交互关系,同时对大规模数据依赖较低。为应对训练挑战,采用Sobolev训练与GradNorm技术,确保损失项平衡并提升泛化能力。尽管尚处初步阶段,该框架已展现出进一步优化潜力,有望成为传统方法的可扩展替代方案,为结构力学中的数值与数据驱动方法发展奠定基础。

原文摘要 · Abstract (English)

A hybrid framework integrating the Virtual Element Method (VEM) with deep learning is presented as an initial step toward developing efficient and flexible numerical models for one-dimensional Euler-Bernoulli beams. The primary aim is to explore a data-driven surrogate model capable of predicting displacement fields across varying material and geometric parameters while maintaining computational efficiency. Building upon VEM's ability to handle higher-order polynomials and non-conforming discretizations, the method offers a robust numerical foundation for structural mechanics. A neural network architecture is introduced to separately process nodal and material-specific data, effectively capturing complex interactions with minimal reliance on large datasets. To address challenges in training, the model incorporates Sobolev training and GradNorm techniques, ensuring balanced loss contributions and enhanced generalization. While this framework is in its early stages, it demonstrates the potential for further refinement and development into a scalable alternative to traditional methods. The proposed approach lays the groundwork for advancing numerical and data-driven techniques in beam modeling, offering a foundation for future research in structural mechanics.

虚拟元法深度学习结构力学代理模型

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