Maize harvester gearbox design modification for improved fatigue life
Abstract The gearbox has the advantage of being able to change the torque and rotational speed according to the gear ratio and has high power transmission efficiency by transmitting power through the contact of the gear pair. When evaluating the strength and fatigue life of a gearbox using a design...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-19982-z |
| _version_ | 1811267391210913792 |
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| author | Ji-Tae Kim Ho-Seop Lee Jung-Ho Park Jea-Keun Woo Il-Su Choi Young-Keun Kim Seung-Je Cho Chang-Sub Ha Young-Jun Park |
| author_facet | Ji-Tae Kim Ho-Seop Lee Jung-Ho Park Jea-Keun Woo Il-Su Choi Young-Keun Kim Seung-Je Cho Chang-Sub Ha Young-Jun Park |
| author_sort | Ji-Tae Kim |
| collection | DOAJ |
| description | Abstract The gearbox has the advantage of being able to change the torque and rotational speed according to the gear ratio and has high power transmission efficiency by transmitting power through the contact of the gear pair. When evaluating the strength and fatigue life of a gearbox using a design load or an equivalent load, there is a possibility that the results will be very different from the actual ones. Therefore, in this study, the load duration distribution (LDD) constructed based on the actual workload was used to evaluate the strength and fatigue life of the gearbox reliably. As a result of evaluating the strength and fatigue life of the gearbox using LDD, it was confirmed that the existing gearbox did not satisfy the target lifespan in the operating environment. Therefore, the reasons for these results were analyzed, and design modification was performed based on the analyzed results. As a result of design modification, shaft deflection decreased by rearrangement of the bearings, from an overhung type to a straddle type, thereby improving the fatigue life of gears and bearings. Finally, the load distribution acting on the gear tooth surface was improved through micro-geometry modification of the gears. |
| first_indexed | 2024-04-12T21:01:41Z |
| format | Article |
| id | doaj.art-b4d9d6a5e64643448a1fdcde9d8945b1 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T21:01:41Z |
| publishDate | 2022-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-b4d9d6a5e64643448a1fdcde9d8945b12022-12-22T03:16:50ZengNature PortfolioScientific Reports2045-23222022-09-0112111310.1038/s41598-022-19982-zMaize harvester gearbox design modification for improved fatigue lifeJi-Tae Kim0Ho-Seop Lee1Jung-Ho Park2Jea-Keun Woo3Il-Su Choi4Young-Keun Kim5Seung-Je Cho6Chang-Sub Ha7Young-Jun Park8Department of Biosystems Engineering, Seoul National UniversityResearch Institute of Agriculture and Life Sciences, Seoul National UniversityDepartment of Biosystems Engineering, Seoul National UniversityNational Institute of Agricultural Sciences, Rural Development AdministrationNational Institute of Agricultural Sciences, Rural Development AdministrationNational Institute of Agricultural Sciences, Rural Development AdministrationDepartment of Bioindustrial Machinery Engineering, Jeonbuk National UniversityDooroo Machinery & Trading CoDepartment of Biosystems Engineering, Seoul National UniversityAbstract The gearbox has the advantage of being able to change the torque and rotational speed according to the gear ratio and has high power transmission efficiency by transmitting power through the contact of the gear pair. When evaluating the strength and fatigue life of a gearbox using a design load or an equivalent load, there is a possibility that the results will be very different from the actual ones. Therefore, in this study, the load duration distribution (LDD) constructed based on the actual workload was used to evaluate the strength and fatigue life of the gearbox reliably. As a result of evaluating the strength and fatigue life of the gearbox using LDD, it was confirmed that the existing gearbox did not satisfy the target lifespan in the operating environment. Therefore, the reasons for these results were analyzed, and design modification was performed based on the analyzed results. As a result of design modification, shaft deflection decreased by rearrangement of the bearings, from an overhung type to a straddle type, thereby improving the fatigue life of gears and bearings. Finally, the load distribution acting on the gear tooth surface was improved through micro-geometry modification of the gears.https://doi.org/10.1038/s41598-022-19982-z |
| spellingShingle | Ji-Tae Kim Ho-Seop Lee Jung-Ho Park Jea-Keun Woo Il-Su Choi Young-Keun Kim Seung-Je Cho Chang-Sub Ha Young-Jun Park Maize harvester gearbox design modification for improved fatigue life Scientific Reports |
| title | Maize harvester gearbox design modification for improved fatigue life |
| title_full | Maize harvester gearbox design modification for improved fatigue life |
| title_fullStr | Maize harvester gearbox design modification for improved fatigue life |
| title_full_unstemmed | Maize harvester gearbox design modification for improved fatigue life |
| title_short | Maize harvester gearbox design modification for improved fatigue life |
| title_sort | maize harvester gearbox design modification for improved fatigue life |
| url | https://doi.org/10.1038/s41598-022-19982-z |
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