Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads
A modern thrust bearing tool is used to estimate the behavior of tilting pad thrust bearings not only in the oil film between pad and rotating collar, but also in the space between the pads. The oil flow in the space significantly influences the oil film inlet temperature and the heating of pad and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-02-01
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| Series: | Lubricants |
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| Online Access: | http://www.mdpi.com/2075-4442/6/1/22 |
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| author | Monika Chmielowiec-Jablczyk Andreas Schubert Christian Kraft Hubert Schwarze Michal Wodtke Michal Wasilczuk |
| author_facet | Monika Chmielowiec-Jablczyk Andreas Schubert Christian Kraft Hubert Schwarze Michal Wodtke Michal Wasilczuk |
| author_sort | Monika Chmielowiec-Jablczyk |
| collection | DOAJ |
| description | A modern thrust bearing tool is used to estimate the behavior of tilting pad thrust bearings not only in the oil film between pad and rotating collar, but also in the space between the pads. The oil flow in the space significantly influences the oil film inlet temperature and the heating of pad and collar. For that reason, it is necessary to define an oil mixing model for the space between the pads. In the bearing tool, the solutions of the Reynolds equation including a cavitation model, the energy equation and the heat transfer equation are done iteratively with the finite volume method by considering a constant flow rate. Both effects—laminar/turbulent flow and centrifugal force—are considered. The calculation results are compared with measurements done for a flooded thrust bearing with nominal eight tilting pads with an outer diameter of 180 mm. The heat convection coefficients for the pad surfaces mainly influence the pad temperature field and are adjusted to the measurement results. In the following paper, the calculation results for variable space distances, influence of different parameters on the bearing behavior and operating condition at high load are presented. |
| first_indexed | 2024-12-10T07:15:52Z |
| format | Article |
| id | doaj.art-8ca6a561ee5e458fb1c7675629ed36be |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-12-10T07:15:52Z |
| publishDate | 2018-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-8ca6a561ee5e458fb1c7675629ed36be2022-12-22T01:57:56ZengMDPI AGLubricants2075-44422018-02-01612210.3390/lubricants6010022lubricants6010022Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the PadsMonika Chmielowiec-Jablczyk0Andreas Schubert1Christian Kraft2Hubert Schwarze3Michal Wodtke4Michal Wasilczuk5GE Renewable Energy Hydro (Switzerland), Zentralstrasse 40, 5242 Birr, SwitzerlandGE Renewable Energy Hydro (Switzerland), Zentralstrasse 40, 5242 Birr, SwitzerlandInstitute of Tribology and Energy Conversion Machinery, TU Clausthal, Leibnizstrasse 32, 38678 Clausthal-Zellerfeld, GermanyInstitute of Tribology and Energy Conversion Machinery, TU Clausthal, Leibnizstrasse 32, 38678 Clausthal-Zellerfeld, GermanyFaculty of Mechanical Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, PolandFaculty of Mechanical Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, PolandA modern thrust bearing tool is used to estimate the behavior of tilting pad thrust bearings not only in the oil film between pad and rotating collar, but also in the space between the pads. The oil flow in the space significantly influences the oil film inlet temperature and the heating of pad and collar. For that reason, it is necessary to define an oil mixing model for the space between the pads. In the bearing tool, the solutions of the Reynolds equation including a cavitation model, the energy equation and the heat transfer equation are done iteratively with the finite volume method by considering a constant flow rate. Both effects—laminar/turbulent flow and centrifugal force—are considered. The calculation results are compared with measurements done for a flooded thrust bearing with nominal eight tilting pads with an outer diameter of 180 mm. The heat convection coefficients for the pad surfaces mainly influence the pad temperature field and are adjusted to the measurement results. In the following paper, the calculation results for variable space distances, influence of different parameters on the bearing behavior and operating condition at high load are presented.http://www.mdpi.com/2075-4442/6/1/22hydrodynamic bearingthrust bearing calculationthrust bearing test rigthrust tilting pad |
| spellingShingle | Monika Chmielowiec-Jablczyk Andreas Schubert Christian Kraft Hubert Schwarze Michal Wodtke Michal Wasilczuk Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads Lubricants hydrodynamic bearing thrust bearing calculation thrust bearing test rig thrust tilting pad |
| title | Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads |
| title_full | Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads |
| title_fullStr | Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads |
| title_full_unstemmed | Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads |
| title_short | Improvement of Thrust Bearing Calculation Considering the Convectional Heating within the Space between the Pads |
| title_sort | improvement of thrust bearing calculation considering the convectional heating within the space between the pads |
| topic | hydrodynamic bearing thrust bearing calculation thrust bearing test rig thrust tilting pad |
| url | http://www.mdpi.com/2075-4442/6/1/22 |
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