Unbalanced Magnetic Pull Effect on Stiffness Models of Active Magnetic Bearing due to Rotor Eccentricity in Brushless DC Motor Using Finite Element Method

Table 2

Designed parameters of the RAMB.

Parameters	Value
Stator outer diameter, (mm)	228
Stator inner diameter, (mm)	89.8
Air gap length, (mm)	0.4
Rotor outer diameter, (mm)	89
Rotor inner diameter, (mm)	60
Number of turns	160
Bias current, (A)	1
Axial length, (mm)	16