Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication
With the gradual increasing of wind turbine power, the advantages of journal bearings in wind turbine gearboxes are gradually prominent. When the lubrication system is blocked or the oil supply is insufficient, the journal bearing will be in the starved lubrication for a long time. In order to study...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2024-01-01
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| Series: | Jixie chuandong |
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| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.01.016 |
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| author | Zhao Dongxu Ni Yanguang Ma Zikui |
| author_facet | Zhao Dongxu Ni Yanguang Ma Zikui |
| author_sort | Zhao Dongxu |
| collection | DOAJ |
| description | With the gradual increasing of wind turbine power, the advantages of journal bearings in wind turbine gearboxes are gradually prominent. When the lubrication system is blocked or the oil supply is insufficient, the journal bearing will be in the starved lubrication for a long time. In order to study the starved lubrication characteristics of journal bearings, based on the Reynolds equation and Reynolds boundary conditions, considering the elastic deformation of sleeves, the calculation model of journal bearings in the starved lubrication is established. The lubrication properties of journal bearings with and without elastic deformation are compared, and the influence of elastic modulus and oil supply on journal bearing properties under the starved lubrication is analyzed. The results of analysis indicate that the minimum oil film thickness considering the elastic deformation is on both sides of the bearing bush, which is more in line with the actual situation. With the increasing of elastic modulus of sleeves, the eccentricity of journals decreases, the maximum oil film pressure increases, and the minimum oil film thickness increases. With the increasing of oil supply, the eccentricity of journals decreases gradually, the maximum oil film pressure decreases, and the minimum oil film thickness increases gradually. |
| format | Article |
| id | doaj-art-04aa67d2435a4baaad76b8be415d794d |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2024-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-04aa67d2435a4baaad76b8be415d794d2025-01-10T15:02:09ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392024-01-014810511048025748Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved LubricationZhao DongxuNi YanguangMa ZikuiWith the gradual increasing of wind turbine power, the advantages of journal bearings in wind turbine gearboxes are gradually prominent. When the lubrication system is blocked or the oil supply is insufficient, the journal bearing will be in the starved lubrication for a long time. In order to study the starved lubrication characteristics of journal bearings, based on the Reynolds equation and Reynolds boundary conditions, considering the elastic deformation of sleeves, the calculation model of journal bearings in the starved lubrication is established. The lubrication properties of journal bearings with and without elastic deformation are compared, and the influence of elastic modulus and oil supply on journal bearing properties under the starved lubrication is analyzed. The results of analysis indicate that the minimum oil film thickness considering the elastic deformation is on both sides of the bearing bush, which is more in line with the actual situation. With the increasing of elastic modulus of sleeves, the eccentricity of journals decreases, the maximum oil film pressure increases, and the minimum oil film thickness increases. With the increasing of oil supply, the eccentricity of journals decreases gradually, the maximum oil film pressure decreases, and the minimum oil film thickness increases gradually.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.01.016Reynolds equationStarved lubricationJournal bearingElasto-hydrodynamic lubrication |
| spellingShingle | Zhao Dongxu Ni Yanguang Ma Zikui Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication Jixie chuandong Reynolds equation Starved lubrication Journal bearing Elasto-hydrodynamic lubrication |
| title | Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication |
| title_full | Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication |
| title_fullStr | Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication |
| title_full_unstemmed | Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication |
| title_short | Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication |
| title_sort | analysis of elasto hydrodynamic lubrication characteristics of journal bearings under starved lubrication |
| topic | Reynolds equation Starved lubrication Journal bearing Elasto-hydrodynamic lubrication |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2024.01.016 |
| work_keys_str_mv | AT zhaodongxu analysisofelastohydrodynamiclubricationcharacteristicsofjournalbearingsunderstarvedlubrication AT niyanguang analysisofelastohydrodynamiclubricationcharacteristicsofjournalbearingsunderstarvedlubrication AT mazikui analysisofelastohydrodynamiclubricationcharacteristicsofjournalbearingsunderstarvedlubrication |