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The levitation mechanism of the 3-DOF deflection type permanent magnet actuator has been presented in this paper. The 3-D analytical model of the air gap between the rotor and stator is established under rotor eccentricity conditions. In order to figure out the unbalanced radial force with rotor static eccentricity, the models of the change of gap-length, air-gap flux density, and the radial electromagnetic...
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