Research Article
Influences of Hydrodynamic Forces on the Identification of the Rotor-Stator-Rubbing Fault in a Rotating Machinery
Table 1
Parameters of the rotor-stator system for the simulations.
| Shaft parameters | Value and units | Bearing stiffness | Value and units |
| Length of the shaft | 780 mm | Shaft stiffness () | Nm-1 | Shaft diameter | 10 mm | Stator stiffness () | Nm-1 | Disc inner-outer radius () | 0.05-0.055 mm | Damper | 200 ns/m | Friction coefficient () | 0.56 | Restitution coefficient () | 0.7 | Young modulus () | N/m2 | Poisson ratio () | 0.3 | Fluid parameters (water) | Value and units | Mass (M) | 16.845 kg | Fluid density () | 1004 kg/m3 | Eccentricity mass () | 0.003 kg·m | Fluid speed () | 4.8522 rad/s | Motor moment of inertia () | 0.36 kg·m2 | Amplitude ratio (X0/l) | 0.1666 | Container width () | 0.3 m | Fluid natural frequency () | 6.0084 rad/s | Disc moment of inertia () | 0.1861 kg·m2 |
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