Research Article
The Impact of Convective Fluid Inertia Forces on Operation of Tilting-Pad Journal Bearings
Table 1
Key parameters of analysis.
| Parameter | Value | TPB120 | TPB500 |
| Geometrical properties | Number of tilting-pads | 4 | 5 | Nominal diameter, mm | 120 | 500 | Tilting-pad thickness, mm | 20 | 72.5 | Bearing width, mm | 72 | 350 | Angular length of tilting-pads, degrees | 70 | 56 | Relative position of tilting-pad support | 0.6 | 0.6 | Radial clearance, µm | 108 | 300 | Preload | 0.50 | 0.23 |
| Static analysis parameters | Bearing load, kN | 175–438 | 175–438 | Rotational speed, rpm | 6000–15000 | 1500–3000 | Lubricant supply temperature, °C | 50 | 50 | Lubricant flow rate, l/s | 1.5 | 7.0 |
| Lubricant properties | Lubricant | ISO VG 32 | ISO VG 32 | Lubricant density kg/m3 | 865 @ 40°C | 844 @ 40°C | Lubricant specific heat capacity kJ/(kg K) | 2.0 @ 20°C | 2.17 @ 70°C |
| Thermal boundaries and material properties | Lubricant thermal conductivity, W/(m K) | 0.13 | 0.13 | Pad and journal thermal conductivity, W/(m K) | 45 | 45 | Pad ambient temperature, °C | 60 | 65 |
|
|