Smooth and non-smooth contact analysis of micro-surfaces of gear teeth

Liu, L.; Zhou, Changjiang; Wang, Z.H.

doi:10.1533/9781782421955.360

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…As a classical theory, the Hertz contact theory has over the years proven very useful to engineers and researchers of contact mechanics. The central idea of a selflubricating joint bearing is to deal with problems arising from contact and this is analyzed by Hertz contact theory [12]. This theory elastomer contact theory was proposed by Heinrich Rudolf Hertz, a German physicist in the year 1882 to study fatigue, friction, and theoretical relations of possible intercontact-interactions.…”

Section: Hertz Contact Theorymentioning

confidence: 99%

Effects of Multi-Surface Texturing on the Tribological Properties of Aluminum Based Self-Lubricating Joint Bearing under Grease Condition

Owusu-Mensah

Hua

Tian

et al. 2023

Preprint

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Joint bearing contact surfaces of high-tech precision machinery applied particularly in the manufacturing industry undergo varying range of extreme temperature and pressure conditions, which subject them to frictional wear, tear and stress during operation in different environments of application. A continuous assessment of their resilient capacities is therefore necessary to avoid operational failure of core base component parts. The aim of this study is to assess the effects of multi-surface treatment and texturing processes on the frictional and stress performance of aluminum based self-lubricating joint bearing under grease condition. Using ANSYS software based on the Hertz contact theory and Boussinesqmodel for numerical simulations of rated static load contact, the study showed that under dry friction and grease lubrication, PTFE/ardex pad stabilizes the surface friction coefficient and effectively reduces the friction coefficient. Again, the friction coefficient of the aluminum self-lubrication increases with the texture share and the sample with 15% share shows the lowest friction coefficient (0.114), under lipid lubrication conditions. It is recommended for future research to conduct a wobble (transient dynamics) and thermodynamic analysis for the model, and attempt to optimize the friction resistance of self-lubricating joint bearing by adjusting the deposition process parameters like current value, temperature and element contact.

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Section: Hertz Contact Theorymentioning

confidence: 99%

Effects of Multi-Surface Texturing on the Tribological Properties of Aluminum Based Self-Lubricating Joint Bearing under Grease Condition

Owusu-Mensah

Hua

Tian

et al. 2023

Preprint

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“…The study showed a rise in contact stresses with friction, which was expected. The FE model proposed by Vijayarangan and Ganesan [45] was used by Hsieh et al [47] to examine the contact stresses in a meshing spur gear tooth pair. They carried out analysis using incremental FE procedure, which simultaneously determines the stresses and the contact area between meshing teeth.…”

Section: Gear Finite Element Models With Frictionmentioning

confidence: 99%

A Short Review on Frictional Contact Stress Distribution in Involute Gears

Patil¹,

Karuppanan²,

Atanasovska³

2019

Tribol. Ind.

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In this paper, the gear contact evaluation models developed using various methods have been discussed. The new experimental and numerical methods have been presented. The research papers are classified into frictionless and frictional contact stress analysis and subdivided into experimental and finite element models. This paper will provide researchers with various information and huge literature data on the described subject. It serves as the rapid retrieval of data related to gear contact stress evaluation. Furthermore, a comprehensive discussion focusing on the customized experimental test rig (Gear Dynamic Stress Test Rig) has been done. Also, the finite element (FE) results showing the variation of contact stresses with and without friction, along the contact path has been shown. The FE results revealed that the contacting stresses between the gears increased significantly for different parallel axis gear, for a given coefficient of friction rise considered in the study.

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