Analysis and prediction of gear fatigue life

Deng, Xiaohe

doi:10.1088/1755-1315/252/2/022024

Cited by 2 publications

(4 citation statements)

References 4 publications

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“…The bending stress can be calculated by the Lewis formula, whereas the Hertz's equation is used for the contact stress. The design procedures developed by American Gear Manufacturing Association (AGMA) and International Organization for Standard (ISO) were also used by the researchers to design spur gears for different applications [5][6][7][8].…”

Section: Analytical Methods and Conditionsmentioning

confidence: 99%

“…Contact stress is the main cause of gear failure. It initiates the crack propagation around the contact surfaces of gear mates, and stress concentration may develop based on it [2,[4][5]. To increase gears' load-carrying capacity and component reliability, it is important to improve the surface strength of gears.…”

Section: Introductionmentioning

confidence: 99%

“…are some mechanical properties of metals. Strength is the ability of metals to withstand deformation due to external loads, whereas ductility is the tendency of metals to be drawn into wire before fracturing under tensile loads [4][5].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Gear Materials on the Surface Contact Strength of Spur Gears

Eskezia¹,

Abebaw²

2022

Proc. eng. technol. innov.

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In gear applications, the initiation of cracks at or near the contact surfaces of gear mates occurs mostly due to the surface contact mode of gear failure. This study aims to investigate the influence of gear materials on the contact strength of spur gears. In this study, four different gear materials are selected and the contact stress on spur gear mates is analyzed. Hertz’s contact stress equation and ANSYS 16 are used for the theoretical analysis and finite element (FE) method, respectively. The results of Hertz’s equation are compared with the results of ANSYS 16. The results show that the contact stress on spur gear mates varies when different gear materials are used in both methods. This indicates that the surface contact strength of spur gears is greatly influenced by the type of gear materials.

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Section: Analytical Methods and Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Gear Materials on the Surface Contact Strength of Spur Gears

Eskezia¹,

Abebaw²

2022

Proc. eng. technol. innov.

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“…The S-N curve of material fatigue strength characteristics is the most commonly used method for estimating the fatigue life of materials or parts, and the corresponding parameters need to be obtained through certain means and feasible methods (Deng, 2019). For gears with various materials, processing techniques, and lubrication conditions, their fatigue characteristics will vary greatly.…”

Section: Curve Fitting Of the Contact Fatigue Stress-life Curve Of Pom Gear Under Lubricationmentioning

confidence: 99%

Loading capacity of POM gear under oil lubrication

ZHONG

Song

Liu

et al. 2022

JAMDSM

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As one of the most common polymer materials, POM gear has been widely applied in automatic transmission boxes, intelligent house devices, etc. Though the mechanical properties of POM material have been extensively studied, the loading capacity and failure mechanism of POM gear still require to be explored. This paper experimentally investigates the loading capacity of medium-module POM gears based upon the durability test under various loading conditions. The POM gears are mated with 18CrNiMo7-6 steel pinions. The tooth wear, surface roughness, and tooth profile evolution are recorded. In the experimental results, the contact fatigue failure was observed in tooth flank of the POM gear with medium modulus under oil lubrication conditions, including tooth surface pitting and fatigue cracks. And according to the experimental durability life data, the contact fatigue S-N curve of POM gear is fitted.

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Analysis and prediction of gear fatigue life

Cited by 2 publications

References 4 publications

Effect of Gear Materials on the Surface Contact Strength of Spur Gears

Effect of Gear Materials on the Surface Contact Strength of Spur Gears

Loading capacity of POM gear under oil lubrication

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