Research Article
Study on Thermal Unstable Vibration of Rotor under Journal Whirl with Large Amplitude in Journal Bearing
Table 1
Parameters for journal and lubricant.
| | Parameters | Value |
| | Journal properties | | Journal radius (mm) | 250 | | Bearing radius clearance (mm) | 0.5 | | Lubricant properties | | Label (turbine oil) | #46 | | Supply temperature (°C) | 40 | | Density (kg/m3) | 860 | | Specific heat capacity (J/(kg•K)) | 1943 | | Viscosity (Pa•s) | 0.0396 | | Ambient temperature (°C) | 20 | | Calculation parameters | | Working speed (rpm) | 3000 | | Static eccentricity ratio | 0.5 | | -Direction amplitude | 0.15 | | -Direction amplitude | 0.10 | | -Direction phase | π/6 | | -Direction phase | π/6 |
|
|
