VICEM

The much-needed study of the influence of these imperfections at the design stage is currently impossible, as it would require repeated execution of an all-numerically parameterized magneto-mechano-acoustic model, which would lead to very long simulation times and parallel computing resources. This direct approach is therefore not compatible with an industrial design approach.

As part of the project, we propose to develop a methodology enabling the construction of an integrated magneto-mechanical scale model of the electric motor as a whole. The idea here is to adopt a dynamic substructuring approach to the overall mechanical behavior model. This solution offers several advantages. Firstly, it enables us to determine which machine components and structural modes have the greatest influence on vibration and acoustic behavior. This sub-structuring modeling strategy also performs an initial reduction phase of the associated mechanical model. It may also, depending on the formalism chosen, enable various structural parameters to be taken into account, such as the stiffness of links between components.

This step will be essential in the construction of an integrated, parameterized reduced model enabling rapid updating of the system's overall behavior by simultaneously updating the electromagnetic stresses and the components affected by a structural modification.

The originality of the proposed approach lies in the use of techniques for the simultaneous construction of reduced bases per component, from both the mechanical and magnetic standpoints, which will constitute a truly integrated approach, unlike the conventional approaches currently used, which remain sequential.