Inverse Problem Approach to Characterize and Model Magnetization Changes in a Thin Shell Structure Undergoing Magneto-Mechanical effects

Antoine Viana (1) , Laure-Line Rouve (1) , Olivier Chadebec (1) , Gilles Cauffet (1) , Jean-Louis Coulomb (1)

1 G2ELab - Laboratoire de Génie Electrique de Grenoble

Measurement of magnetization M inside a complex ferromagnetic geometry cannot be achieved by usage of any measurement device. In this paper, we propose to use an inverse problem algorithm to determine the law of variation of M for such structures, accounting for the magneto-mechanical effects it is undergoing. The analytical law obtained leads to an intrinsic characterization model of magnetization inside the structure. Validation of the results is achieved on a prototype undergoing high mechanical stresses in low magnetic field, by comparison of the predicted magnetic signature in the vicinity of the prototype, and measurements performed by external magnetic sensors.

Domaines: Energie électrique

Antoine Viana, Laure-Line Rouve, Olivier Chadebec, Gilles Cauffet, Jean-Louis Coulomb. Inverse Problem Approach to Characterize and Model Magnetization Changes in a Thin Shell Structure Undergoing Magneto-Mechanical effects. CEFC 2010 (Conference on Electromagnetic Field Computation), May 2010, Chicago, United States. ⟨hal-00484964⟩