A comparative study of fatigue behavior between S-shaped and involute POM gears
| Autor: | Ruo Wu, Peitang Wei, Zehua Lu, Huaiju Liu, Damijan Zorko, Huaijie Xie |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
S-shaped gear profile
evolventni zobniki Computational Mechanics polymer gears loading capacity Computer Graphics and Computer-Aided Design Human-Computer Interaction S-zobniki Computational Mathematics involute profiles Modeling and Simulation polimerni zobniki udc:621.83:678 Engineering (miscellaneous) |
| Zdroj: | Journal of computational design and engineering, vol. 9, no. 6, 2022. |
| ISSN: | 2288-4300 |
| Popis: | Applications of polymer gears have been gradually expanding from motion transmission to power transmission fields. Design of new gear teeth profiles plays a crucial role in meeting the requirement of replacing metallic gears with polymer ones. This work develops a computational framework consisting of tooth profile generation and fatigue life prediction of S-shaped and involute POM gears. The contact and bending fatigue performances of S-shaped and involute POM gears under oil lubrication are comparatively studied. It is found that the S-shaped profile reduces the tooth root stress by 25% and significantly improves the bending fatigue life by 10 times compared with the involute profile, especially under medium or high loading levels. Furthermore, the S-shaped gear with a single circular-filleted root curve benefits a 20% reduction of tooth root stress and a 30% increase in bending fatigue life compared to a double circular-filleted root curve S-shaped gear. |
| Databáze: | OpenAIRE |
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