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Analysis of a Low-Loss Gear Geometry Using a Thermal Elastohydrodynamic Simulation including Mixed Lubrication
| Content Provider | MDPI |
|---|---|
| Author | Farrenkopf, Felix Schwarz, Andreas Lohner, Thomas Stahl, Karsten |
| Copyright Year | 2022 |
| Description | Low-loss gears are an interesting design approach for increasing the efficiency and thermal load limits of gearboxes. The loss-optimized gear geometry concentrates sliding around the pitch point, which results in low load-dependent gear power losses. In this study, a method for modeling transient EHL (elastohydrodynamically lubricated) contacts in gear mesh considering mixed lubrication and thermal effects is introduced and applied to analyze the tribological behavior of a low-loss gear geometry. Special focus is placed on local frictional losses to analyze the role of the thermal effects of the gear mesh. Although a thermal reduction in fluid friction is observed, the overall effect on total frictional losses of the low-loss gear geometry is evaluated to be very small. The edge geometry strongly influences the lubricant film thickness and frictional power losses. |
| Starting Page | 200 |
| e-ISSN | 20754442 |
| DOI | 10.3390/lubricants10090200 |
| Journal | Lubricants |
| Issue Number | 9 |
| Volume Number | 10 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-24 |
| Access Restriction | Open |
| Subject Keyword | Lubricants Manufacturing Engineering Elastohydrodynamic Lubrication Mixed Lubrication Gear Efficiency |
| Content Type | Text |
| Resource Type | Article |
