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- Title
Neural network representation of time integrators.
- Authors
Löhner, Rainald; Antil, Harbir
- Abstract
Deep neural network (DNN) architectures are constructed that are the exact equivalent of explicit Runge–Kutta schemes for numerical time integration. The network weights and biases are given, that is, no training is needed. In this way, the only task left for physics‐based integrators is the DNN approximation of the right‐hand side. This allows to clearly delineate the approximation estimates for right‐hand side errors and time integration errors. The architecture required for the integration of a simple mass‐damper‐stiffness case is included as an example.
- Subjects
ARTIFICIAL neural networks; INTEGRATORS; TIME integration scheme; TRAINING needs
- Publication
International Journal for Numerical Methods in Engineering, 2023, Vol 124, Issue 18, p4192
- ISSN
0029-5981
- Publication type
Article
- DOI
10.1002/nme.7306