Model-Order Reduction for Nonlinear Eddy Current Problems via Quadratic-Bilinear Modeling

Dipl.-Ing. Daniel Klis, Universität des Saarlandes

2 Nov 2015, 16:15–17:45; Location: S2|17-103

The finite-element time-domain simulation of nonlinear systems requires the iterative solution of a large, sparse system of equations at every time-step. Model-order reduction is a powerful tool for reducing the computational effort for this task. State-of-the-art methods compute an affine approximation to the nonlinearity. In contrast, the quadratic-bilinear approach treats the nonlinearity without simplification, by rewriting the original equations as a quadratic-bilinear differential algebraic system.

In this talk, an adaptive order-reduction methodology with error control is presented for the nonlinear eddy current problem.

Category: CE Seminar


Technische Universität Darmstadt

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