摘要：Conventional attractive magnetic force models (proportional to th. coil current squared and inversely proportional to th. gap squared) cannot simulate th. nonlinear responses of magnetic bearings in th. presence of electromagnetic losses,flux leakage or saturation of *** th.s paper,based on results from an experimental set-up designed to study magnetic force,a novel parametric model is presented in th. form of a nonlinear polynomial with.unknown *** parameters of th. proposed model are identified using th. weigh.ed residual *** of th. model identified were performed by comparing th. results in time and frequency *** results sh.w a good correlation between experiments and numerical simulations.