Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicle
Uneven load sharing of a planetary gear set is the main cause of preventing the miniaturization and weight reduction of a planetary gearbox. Non-torque loads and carrier pinhole position errors are the main factors that worsen the load-sharing characteristics. However, their effects are seldom analy...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2020-07-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814020940468 |
| _version_ | 1818120261100109824 |
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| author | Woo-Jin Chung Joo-Seon Oh Hyun-Woo Han Ji-Tae Kim Young-Jun Park |
| author_facet | Woo-Jin Chung Joo-Seon Oh Hyun-Woo Han Ji-Tae Kim Young-Jun Park |
| author_sort | Woo-Jin Chung |
| collection | DOAJ |
| description | Uneven load sharing of a planetary gear set is the main cause of preventing the miniaturization and weight reduction of a planetary gearbox. Non-torque loads and carrier pinhole position errors are the main factors that worsen the load-sharing characteristics. However, their effects are seldom analyzed at a system level especially for an off-road vehicle. To make up this gap, some simulation models are proposed to investigate the effects of floating members on the load-sharing characteristics and the strength of a planetary gear set with non-torque load and carrier pinhole position error. When the error is not considered, the mesh load factor converges to unity irrespective of the type and number of floating members and the safety factors for pitting and bending are increased slightly. When the carrier pinhole position error is considered, the mesh load factor dramatically worsens. Although it is improved using the floating members, it does not converge to unity. However, the bending safety factor of the planet gear with the error is increased by 26%. This indicates that the design modification for the original planetary gearbox is needed to satisfy the safety factor requirement, but the problem is solved using only floating members. |
| first_indexed | 2024-12-11T05:23:17Z |
| format | Article |
| id | doaj.art-5b8589f5c3694df49bec10e25d2b35ac |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-11T05:23:17Z |
| publishDate | 2020-07-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-5b8589f5c3694df49bec10e25d2b35ac2022-12-22T01:19:38ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402020-07-011210.1177/1687814020940468Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicleWoo-Jin Chung0Joo-Seon Oh1Hyun-Woo Han2Ji-Tae Kim3Young-Jun Park4Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul, South KoreaDepartment of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul, South KoreaDepartment of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul, South KoreaDepartment of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul, South KoreaResearch Institute for Agriculture and Life Sciences, Seoul National University, Seoul, South KoreaUneven load sharing of a planetary gear set is the main cause of preventing the miniaturization and weight reduction of a planetary gearbox. Non-torque loads and carrier pinhole position errors are the main factors that worsen the load-sharing characteristics. However, their effects are seldom analyzed at a system level especially for an off-road vehicle. To make up this gap, some simulation models are proposed to investigate the effects of floating members on the load-sharing characteristics and the strength of a planetary gear set with non-torque load and carrier pinhole position error. When the error is not considered, the mesh load factor converges to unity irrespective of the type and number of floating members and the safety factors for pitting and bending are increased slightly. When the carrier pinhole position error is considered, the mesh load factor dramatically worsens. Although it is improved using the floating members, it does not converge to unity. However, the bending safety factor of the planet gear with the error is increased by 26%. This indicates that the design modification for the original planetary gearbox is needed to satisfy the safety factor requirement, but the problem is solved using only floating members.https://doi.org/10.1177/1687814020940468 |
| spellingShingle | Woo-Jin Chung Joo-Seon Oh Hyun-Woo Han Ji-Tae Kim Young-Jun Park Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicle Advances in Mechanical Engineering |
| title | Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicle |
| title_full | Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicle |
| title_fullStr | Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicle |
| title_full_unstemmed | Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicle |
| title_short | Analytical study of floating effects on load sharing characteristics of planetary gearbox for off-road vehicle |
| title_sort | analytical study of floating effects on load sharing characteristics of planetary gearbox for off road vehicle |
| url | https://doi.org/10.1177/1687814020940468 |
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