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

被引：13

作者：

Wu, Ruo ^{[1
]}

Wei, Peitang ^{[1
]}

Lu, Zehua ^{[1
]}

Liu, Huaiju ^{[1
]}

Zorko, Damijan ^{[2
]}

Xie, Huaijie ^{[3
]}

机构：

[1] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China

[2] Univ Ljubljana, Fac Mech Engn, Askerceva 6, Ljubljana 1000, Slovenia

[3] Joinature Polymer Co Ltd, Jilin 130113, Peoples R China

来源：

JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING | 2022年 / 9卷 / 06期

基金：

中国国家自然科学基金;

关键词：

S-shaped gear profile; involute profile; polymer gear; loading capacity; STRAIN-RATE; TEMPERATURE; PERFORMANCE; POLYOXYMETHYLENE; DURABILITY;

D O I：

10.1093/jcde/qwac121

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

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.

引用

页码：2483 / 2494

页数：12

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