Abstract
To study the matching relationship between the structural parameters and the working condition parameters of the oil scoop blade, the effects of the radius difference of the oil scoop blade, the injection angle of the oil jet nozzle, the rotating speed of the oil scoop, and the oil velocity on the oil loss angle and oil capture efficiency are studied by theoretical analysis and numerical simulation. The results show that the impact point position of the oil jet impinging on the outer contour of the oil scoop blade can be changed by adjusting the injection angle and the radius difference of the oil scoop blade. The former has less influence, and the latter can reduce the impact splash amount of the lubricant oil at low oil jet velocity. Considering the influence of wind resistance, the oil loss angle obtained is less than the corresponding theoretical analysis result. The oil capture efficiency can be increased by more than 3.0% by increasing the radius difference of the oil scoop blade at the rotating speed of 11 000 r/min. Adjusting the radius difference of the oil scoop blade within a certain rotating speed range can reduce the impact splash amount of the lubricant oil and improve the oil capture efficiency.
| Translated title of the contribution | Matching relationship between structural parameters and operating parameters of oil scoop blade for high-speed bearing with under-race lubrication |
|---|---|
| Original language | Chinese (Traditional) |
| Article number | 426037 |
| Journal | Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica |
| Volume | 43 |
| Issue number | 12 |
| DOIs | |
| State | Published - 25 Dec 2022 |