Micro-Clearance Oil Film Temperature Field Characteristics of High Speed and Heavy Type Hydrostatic Thrust Bearing under Extreme Operating Conditions
| Autor: | Yu, Xiaodong, Han, Zelin, Zhan, Shiwei, Zhou, Defan, Wang, Fakun, Sun, Fan, Jiao, Jianhua, Wang, Junfeng, Jiang, Hui |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Transactions of FAMENA Volume 47 Issue 1 |
| ISSN: | 1849-1391 1333-1124 |
| DOI: | 10.21278/tof.471030321 |
| Popis: | To explore the micro-clearance oil film temperature field characteristics of hydrostatic thrust bearings under operating conditions of high speed and heavy load, a mathematical model of micro-clearance oil film is established. According to the principle of computational fluid dynamics, the relationship between load capacity and rotational speed is calculated, and the model is solved using the finite volume method. The micro-clearance oil film temperature field is also investigated and tested to verify the theoretical analysis. The results show that the rotational speed is coupled with the load-carrying capacity of hydrostatic thrust bearings. When the extreme operating conditions are between 0t-228.9r/min and 4t-214.9r/min, the oil film maximum temperature increases slowly with the load increase and rotational speed decrease, and the average temperature decreases slowly. On the other hand, when the extreme operating conditions are between 4t-214.9r/min and 32t-78.9r/min, the maximum temperature and the average temperature slowly decrease as the load increases and the rotational speed decreases; the influence of rotational speed is greater than that of load, and the temperature rise of the upstream side is sharper than that of the downstream side. |
| Databáze: | OpenAIRE |
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