Modeling the dynamic suspension behavior of an eddy current device

A 2D steady-state analytic based eddy-current model for a conducting plate that is capable of accounting for frequency and velocity changes in two directions is derived. Only the source field on the surface of the conducting plate needs to be known. In addition, a 2D transient model is derived that is capable of accounting of continuous changes in the input conditions. Both analytic based models have been validated using finite element code. The transient and steady-state models are integrated into an electromechanical system where the magnetic source is a Halbach rotor. The accuracy of both calculation methods is compared. The stiffness and damping coefficients are derived using the steady-state model.