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Table 3
Comparisons between journal bearing with plain profile (pp) and double parabolic profiles (dpp).
| Parameters | pp | dpp |
|
|---|---|---|---|
| Eccentricity ration of midplane ϵ | 0.9167 | 0.9263 | +1.05 |
| Attitude angle of midplane φ(°) | 189.7093 | 189.5775 | –0.07 |
| Misalignment angle γ(10−2°) | 1.2416 | 1.2968 | +4.45 |
| Min. film thickness hmin (μm) | 1.9095 | 3.5935 | +88.20 |
| Max. asperity contact pressure Pasp max (MPa) | 0.6644 | 0 | –100.00 |
| Max. film pressure Pmax (MPa) | 60.0312 | 68.1382 | +13.51 |
| Friction loss Pf (W) | 4130.5236 | 4273.4494 | +3.46 |
| Leakage flowrate Q (10−4 m3/s) | 1.2720 | 1.3007 | +2.26 |
| Effective temperature Te (°C) | 86.6712 | 86.8673 | +0.23 |
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