The invention relates to a magnetic resonance device comprising a magnet that generates a base magnetic field, at least one eddy-current generator and at least one electrically conductive structure, in which eddy currents can be produced by means of the eddy-current generator, in such a way that Lorentz forces act on the structure in the base magnetic field. The structure is equipped with a force generator, which is configured and controlled in such a way that it generates forces which counteract the Lorentz forces, thus preventing a displacement and deformation of the structure.