Application of flexible pin for planetary gear set of wind turbine gearbox
Abstract Wind turbines are eco-friendly energy sources that generate electricity from wind power. Among their various components, gearboxes constitute the most critical loss owing to their longest downtime. To guarantee their durability, a flexible pin was designed based on the original straddle-mou...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-05828-1 |
| _version_ | 1798023837849223168 |
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| author | Ho-Gil Yoo Woo-Jin Chung Beom-Soo Kim Young-Jun Park Su-Chul Kim Geun-Ho Lee |
| author_facet | Ho-Gil Yoo Woo-Jin Chung Beom-Soo Kim Young-Jun Park Su-Chul Kim Geun-Ho Lee |
| author_sort | Ho-Gil Yoo |
| collection | DOAJ |
| description | Abstract Wind turbines are eco-friendly energy sources that generate electricity from wind power. Among their various components, gearboxes constitute the most critical loss owing to their longest downtime. To guarantee their durability, a flexible pin was designed based on the original straddle-mounted pin for enhanced tooth load sharing and distribution in the planetary gear set (PGS) of a wind turbine gearbox (WTGB). The improved durability was evaluated by calculating the mesh load factor and face load factor for contact stress and comparing these values with those of the original straddle-mounted pin. The mesh load factor decreased from 1.37 to 1.08, whereas the maximum face load factor decreased slightly, moderating the overall safety factor variation. Furthermore, the structure of the proposed flexible pin model was analyzed and verified that no static failure or interference occurred. Additionally, microgeometry optimization was applied to improve the load distribution. Therefore, it was verified that a flexible pin applied to a single helical-geared PGS, thus far considered impossible, enhances the durability of WTGBs by improving the load sharing and distribution of a PGS. Consequently, the possibility of designing single helical-geared planetary gearboxes with flexible pins to take advantages of both helical gears and flexible pins was shown analytically. |
| first_indexed | 2024-04-11T17:53:00Z |
| format | Article |
| id | doaj.art-362ea8a8fa924b149348a3f715d22f54 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T17:53:00Z |
| publishDate | 2022-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-362ea8a8fa924b149348a3f715d22f542022-12-22T04:10:59ZengNature PortfolioScientific Reports2045-23222022-02-0112111310.1038/s41598-022-05828-1Application of flexible pin for planetary gear set of wind turbine gearboxHo-Gil Yoo0Woo-Jin Chung1Beom-Soo Kim2Young-Jun Park3Su-Chul Kim4Geun-Ho Lee5Department of Biosystems Engineering, Seoul National UniversityDepartment of Biosystems Engineering, Seoul National UniversityDepartment of Biosystems Engineering, Seoul National UniversityDepartment of Biosystems Engineering, Seoul National UniversityDepartment of Smart Industrial Machinery, Korea Institute of Machinery and MaterialsDepartment of Smart Industrial Machinery, Korea Institute of Machinery and MaterialsAbstract Wind turbines are eco-friendly energy sources that generate electricity from wind power. Among their various components, gearboxes constitute the most critical loss owing to their longest downtime. To guarantee their durability, a flexible pin was designed based on the original straddle-mounted pin for enhanced tooth load sharing and distribution in the planetary gear set (PGS) of a wind turbine gearbox (WTGB). The improved durability was evaluated by calculating the mesh load factor and face load factor for contact stress and comparing these values with those of the original straddle-mounted pin. The mesh load factor decreased from 1.37 to 1.08, whereas the maximum face load factor decreased slightly, moderating the overall safety factor variation. Furthermore, the structure of the proposed flexible pin model was analyzed and verified that no static failure or interference occurred. Additionally, microgeometry optimization was applied to improve the load distribution. Therefore, it was verified that a flexible pin applied to a single helical-geared PGS, thus far considered impossible, enhances the durability of WTGBs by improving the load sharing and distribution of a PGS. Consequently, the possibility of designing single helical-geared planetary gearboxes with flexible pins to take advantages of both helical gears and flexible pins was shown analytically.https://doi.org/10.1038/s41598-022-05828-1 |
| spellingShingle | Ho-Gil Yoo Woo-Jin Chung Beom-Soo Kim Young-Jun Park Su-Chul Kim Geun-Ho Lee Application of flexible pin for planetary gear set of wind turbine gearbox Scientific Reports |
| title | Application of flexible pin for planetary gear set of wind turbine gearbox |
| title_full | Application of flexible pin for planetary gear set of wind turbine gearbox |
| title_fullStr | Application of flexible pin for planetary gear set of wind turbine gearbox |
| title_full_unstemmed | Application of flexible pin for planetary gear set of wind turbine gearbox |
| title_short | Application of flexible pin for planetary gear set of wind turbine gearbox |
| title_sort | application of flexible pin for planetary gear set of wind turbine gearbox |
| url | https://doi.org/10.1038/s41598-022-05828-1 |
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