Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling Bearings
Oscillating grease-lubricated slewing bearings are used in several applications. One of the most demanding and challenging is the rotor blade bearings of wind turbines. They allow the rotor blades to be turned to control the rotational speed and loads of the complete turbine. The operating condition...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/12/12/415 |
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| author | Arne Bartschat Matthias Stammler Jan Wenske |
| author_facet | Arne Bartschat Matthias Stammler Jan Wenske |
| author_sort | Arne Bartschat |
| collection | DOAJ |
| description | Oscillating grease-lubricated slewing bearings are used in several applications. One of the most demanding and challenging is the rotor blade bearings of wind turbines. They allow the rotor blades to be turned to control the rotational speed and loads of the complete turbine. The operating conditions of blade bearings can lead to lubricant starvation of the contacts between rolling elements and raceways, which can result in wear damages like false brinelling. Variable oscillating amplitudes, load distributions, and the grease properties influence the likelihood of wear occurrence. Currently, there are no methods for rating this risk based on existing standards. This work develops an empirical methodology for assessing and quantifying the risk of wear damage. Experimental results of small-scale blade bearings show that the proposed methodology performs well in predicting wear damage and its progression on the raceways. Ultimately, the methods proposed here can be used to incorporate on-demand lubrication runs of pitch bearings, which would make turbine operation more reliable and cost-efficient. |
| format | Article |
| id | doaj-art-f2840051c29d49a3a30b5a93efaa6b34 |
| institution | Kabale University |
| issn | 2075-4442 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-f2840051c29d49a3a30b5a93efaa6b342024-12-27T14:36:45ZengMDPI AGLubricants2075-44422024-11-01121241510.3390/lubricants12120415Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling BearingsArne Bartschat0Matthias Stammler1Jan Wenske2Large Bearing Laboratory, Fraunhofer Institute for Wind Energy Systems—IWES, 21029 Hamburg, GermanyLarge Bearing Laboratory, Fraunhofer Institute for Wind Energy Systems—IWES, 21029 Hamburg, GermanyLarge Bearing Laboratory, Fraunhofer Institute for Wind Energy Systems—IWES, 21029 Hamburg, GermanyOscillating grease-lubricated slewing bearings are used in several applications. One of the most demanding and challenging is the rotor blade bearings of wind turbines. They allow the rotor blades to be turned to control the rotational speed and loads of the complete turbine. The operating conditions of blade bearings can lead to lubricant starvation of the contacts between rolling elements and raceways, which can result in wear damages like false brinelling. Variable oscillating amplitudes, load distributions, and the grease properties influence the likelihood of wear occurrence. Currently, there are no methods for rating this risk based on existing standards. This work develops an empirical methodology for assessing and quantifying the risk of wear damage. Experimental results of small-scale blade bearings show that the proposed methodology performs well in predicting wear damage and its progression on the raceways. Ultimately, the methods proposed here can be used to incorporate on-demand lubrication runs of pitch bearings, which would make turbine operation more reliable and cost-efficient.https://www.mdpi.com/2075-4442/12/12/415wearoscillating bearingspitch bearingwind turbinetest |
| spellingShingle | Arne Bartschat Matthias Stammler Jan Wenske Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling Bearings Lubricants wear oscillating bearings pitch bearing wind turbine test |
| title | Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling Bearings |
| title_full | Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling Bearings |
| title_fullStr | Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling Bearings |
| title_full_unstemmed | Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling Bearings |
| title_short | Towards a Model-Based Methodology for Rating and Monitoring Wear Risk in Oscillating Grease-Lubricated Rolling Bearings |
| title_sort | towards a model based methodology for rating and monitoring wear risk in oscillating grease lubricated rolling bearings |
| topic | wear oscillating bearings pitch bearing wind turbine test |
| url | https://www.mdpi.com/2075-4442/12/12/415 |
| work_keys_str_mv | AT arnebartschat towardsamodelbasedmethodologyforratingandmonitoringwearriskinoscillatinggreaselubricatedrollingbearings AT matthiasstammler towardsamodelbasedmethodologyforratingandmonitoringwearriskinoscillatinggreaselubricatedrollingbearings AT janwenske towardsamodelbasedmethodologyforratingandmonitoringwearriskinoscillatinggreaselubricatedrollingbearings |