Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4963795 | Computer Methods in Applied Mechanics and Engineering | 2017 | 26 Pages |
Abstract
The established Hyper-Reduction methods require training sets which are usually obtained by a training simulation of the full, unreduced model resulting in immense offline costs. To reduce the offline-costs, so-called Nonlinear Stochastic Krylov Training Sets (NSKTS) are proposed in this paper. These training sets are obtained by solving a number of nonlinear static problems where the force is constructed by stochastically weighted forces of a Krylov force subspace. The feasibility of NSKTS as training sets for the Energy Conserving Mesh Sampling and Weighting (ECSW) Hyper-Reduction method is demonstrated on a geometrically nonlinear rubber boot example exhibiting excellent results in terms of accuracy, speedup and robustness.
Related Topics
Physical Sciences and Engineering
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Computer Science Applications
Authors
J.B. Rutzmoser, D.J. Rixen,