부산대학교 도서관

This article re-examines the basis for each eddy current stiffness term computed from prior published steady-state eddy current models. The article corrects prior analysis work by confirming, through the use of 2-D and 3-D dynamic finite element analysis (FEA) modeling, that when a magnetic source is moving over an infinite-wide and infinite-long conductive sheet guideway the steady-state lateral and translational stiffness terms will be zero and only the vertical coupled stiffness terms need to be modeled. Using these observations, a much simplified 6 degrees-of-freedom (6 DoF) linearized eddy current dynamic force model can be used to compute the steady-state force changes in eddy current-based magnetic levitation (maglev) vehicles when operating over a wide uniform conductive track.