A comparative study of fatigue behavior between S-shaped and involute POM gears

Wu, Ruo (author), Wei, Peitang (author), Lu, Zehua (author), Liu, Huaiju (author), Zorko, Damijan (author), Xie, Huaijie (author)

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.

• Language: English
• Keywords: S-shaped gear profile, involute profiles, polymer gears, loading capacity
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Publication date: 01.11.2022
• Year: 2022
• Number of pages: Str. 2483–2494
• Numbering: Vol. 9, iss. 6
• PID: 20.500.12556/RUL-143644
• UDC: 621.83:678
• ISSN on article: 2288-4300
• DOI: 10.1093/jcde/qwac121
• COBISS.SI-ID: 136264963
• Publication date in RUL: 05.01.2023

Record is a part of a journal

• Title: Journal of computational design and engineering
• Shortened title: J. comput. des. eng.
• Publisher: Society of CAD/CAM Engineers
• ISSN: 2288-4300
• COBISS.SI-ID: 520384793

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: S-zobniki, evolventni zobniki, polimerni zobniki

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: National Natural Science Foundation of China
• Project number: 52175041

• Funder: Other - Other funder or multiple funders
• Funding programme: Graduate Scientific Research and Innovation Foundation of Chongqing, China
• Project number: CYB22008