Review Article
Model Reduction Methods for Rotor Dynamic Analysis: A Survey and Review
Table 1
Component contributions to rotor dynamic equation of motion; S = symmetric, SS = skew-symmetric, and US = unsymmetric.
| | Mass (M) | Damping (C) | Gyroscopic (G) | Stiffness (K) | | (S) | (S/US) | (SS) | (S/US) |
| Shaft | ⊗ | ⊗ | ⊗ | ⊗ |
| Impeller | ⊗ | | ⊗ | | Gear | ⊗ | | ⊗ | ⊙ (US) | Fan | ⊗ | | ⊗ | | Disk | ⊗ | | ⊗ | | Coupling | ⊗ | | ⊗ | ⊙ (S) |
| Rolling Bearing | | | | ⊗ (US) | Journal Bearing | | ⊗ (US) | | ⊗ (US) | Squeeze Film Damper | ⊙ | ⊗ (US) | | ⊗ (US) | Seals | ○ | ⊗ (US) | | ⊗ (US) |
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