Jun 24 – 28, 2024
Laboratoire Paul Painlevé
Europe/Paris timezone

Self-adjoint problems in the optimization of non-linear pde models

Jun 26, 2024, 9:00 AM
1h
Polytech Lille, Chappe auditorium, Cité Scientifique (Laboratoire Paul Painlevé)

Polytech Lille, Chappe auditorium, Cité Scientifique

Laboratoire Paul Painlevé

Speaker

Grégoire Allaire (École Polytechnique)

Description

We consider optimization problems under partial differential equation constraints. It is assumed that the p.d.e. arises from the minimization of a convex non-linear (non-quadratic) energy. We prove that the optimization problem is self-adjoint when the objective function is the dual energy. In other words, the differential of the objective function with respect to the optimization variable does not involve any adjoint state. This result generalizes the well known fact that the so-called compliance is self-adjoint in the linear case (quadratic energy).

We show some applications for the shape and topology optimization of electrical machines in the 2-d magnetostatic context.

This is a joint work with Théodore Cherrière, Thomas Gauthey, Maya Hage Hassan, Xavier Mininger.

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