Measurement and Modelling of 2D Magnetostriction of Non-oriented Electrical Steel

摘要

Magnetostriction of a non-oriented electrical steel was measured under magnetisation conditions present in an AC machine stator core, and compared with the modelled magnetostriction based on an analogy of mechanical elasticity. This model can cope with shear magnetostriction and magnetostriction perpendicular to the magnetisation direction, which shows possibilities of improving the accuracy of stator core deformation and vibration calculations.