Research Article
A Novel Integral 5-DOFs Hybrid Magnetic Bearing with One Permanent Magnet Ring Used for Turboexpander
Table 1
Design parameters of the combined 5-DOFs HMB.
| | Parameters | Value |
| | Inner diameter of the RMB unit rotor stacks (mm) | 46 | | Outer diameter of the RMB unit rotor stacks (mm) | 68 | | Length of the RMB unit rotor stacks (mm) | 20 | | Inner diameter of the RMB unit stator (mm) | 69 | | Outer diameter of the RMB unit stator (mm) | 113 | | Length of the RMB unit stator (mm) | 20 | | Radial pole shoe area (mm2) | 734 | | The number of winding turns in coil of RMB unit | 220 | | Inner diameter of the axial pole shoe (mm) | 76 | | Outer diameter of the axial pole shoe (mm) | 90 | | The number of winding turns in coil of AMB unit | 250 | | The radial and axial air gap (mm) | 0.5 | | Relative permeability of the permanent magnet ring | 1.082 | | Outer diameter of the permanent magnet ring (mm) | 126 | | Inner diameter of the permanent magnet ring (mm) | 113 | | Length of the permanent magnet ring (mm) | 5 |
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