Static and Dynamic Model of a HTSC Axial Bearing

The stability of magnetic HTSC bearings under axial perturbations has been experimentally investigated in both quasi-static and dynamic conditions. The obtained results have been then used to develop several numerical models which can reproduce the PM-HTSC behaviour under a wide range of conditions. These calculation methods, implemented in a 2D static finite elements code, have been applied to the design of a rotating bearing for a flywheel energy storage system. The amplitude, frequency and temperature dependence on the stability parameters have been studied and the effects of the obtained results on the bearing performance have been discussed.