Analysis of deformation behavior of the anti-friction layer part with a spherical recess for lubricant

Адамов, А. А.; Kamenskikh, Anna A.; Nosov, Yuriy

doi:10.1063/5.0059621

Cited by 2 publications

(6 citation statements)

References 12 publications

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“…The team determined the constrained compression modulus M and the free compression modulus E according to the experiments results. According to Adamov et al [21], it is possible to calculate other elastic constants of the isotropic elastic body, which are expressed through the measured modules. The Poisson's coefficient is defined by the Equation:…”

Section: Methodsmentioning

confidence: 99%

“…More than 30 polymeric and composite materials have been studied to date as sliding layers of bearing as an alternative to PTFE [19]. A number of the most promising ones have been selected and studied their frictional properties [21,22]. The mathematical description of the materials behavioral models is carried out in the first approximation within the framework of the deformation theory of plasticity [18,19].…”

mentioning

confidence: 99%

“…Papers [18,[20][21][22][23] presented axisymmetric and three-dimensional models' bridges' spherical bearing of different geometric configurations. An experimental facility has been created and put into operation for studying the deformation behavior of bridges' spherical bearing [18].…”

mentioning

confidence: 99%

“…The research direction has changed now. It is aimed at rationalizing the elements geometric configuration of the spherical bearing [21][22][23]: the sliding layers location, the antifriction layer geometry, the lubrication holes configuration, the sliding layer thickness, etc. This paper presents the influence analysis of the spherical sliding layer thickness on the structure operation.…”

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confidence: 99%

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Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

2022

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Bearings are the supporting elements of bridges. They perceive vertical and horizontal loads from the bridge span. Spherical bearings are one of the construction common types. The material and configuration of the anti-friction layers determine the bearing performance. The paper performed the contact deformation analysis of spherical bearing elements at a nominal vertical load of 1000 kN. The six types of the spherical sliding layer material are considered: ultra-high molecular weight polyethylene (UHMWPE) from three different manufacturers, modified polytetrafluoroethylene (PTFE), and composite materials by PTFE with two different forms of reinforcing bronze inclusions. Young’s modulus, Poisson’s ratio, and strain curve are obtained experimentally for spherical sliding layer materials. Paper considered the influence of the sliding layer material on the contact parameters and deformation characteristics of the structure with a standard interlayer thickness by 4 mm. Research observed significant the composite interlayer deformation and the appearance of “no contact” zones on the mating surfaces. The option of increasing the sliding layer thickness up to 6–8 mm is considered. A decrease is observed in the maximum level of contact parameters by increase of the sliding layer thickness. The influence of the anti-friction layer materials becomes insignificant on the bearing deformation with an increase of the spherical sliding layer thickness.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

2022

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“…Every year, there is an active production development of new antifriction materials, which can be used in various spheres of human activity, including medicine [33][34][35][36], mechanical engineering [37][38][39][40][41], bridge-building activity [42,43], etc. They are applied in different fields for approximately the same type of tasks, namely as a protective and reinforcing coating [38], such as corrosion protection [33], the use of biocompatible polymers as certain grafts [34,35], mouth guards [36], etc.…”

Section: Materials Problems Of Antifriction Sliding Layersmentioning

confidence: 99%

The Geometric Configuration of Lubricant Recesses of the Polymer Sliding Layer of the Bearing

Bogdanova,

Kamenskikh,

Nosov

2023

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Polymers have gained a foothold in the international market and are actively utilized at a large scale in various industries. They are used as sliding layers in various types of friction units. However, there is a lack of research on their deformation behavior under different design conditions. This work is focused on studying the influence of the geometrical design of lubrication recesses in a polymer sliding layer operating under conditions of frictional contact interaction. The article investigated an element of bridge-bearing steel plate with recesses for lubrication. Two geometrical configurations of recesses are studied: the annular groove and spherical well in the engineering software package ANSYS Mechanical APDL. Polytetrafluoroethylene (PTFE) is considered an elastic-plastic sliding layer. A comparative analysis of two models with different geometrical configurations of cutouts for lubrication, with/without taking into account its volume in the recess, has been conducted. The article establishes that in the absence of lubrication in the recesses, large deformations of the polymer sliding layer occur. This effect negatively affects the structure as a whole. Changing the geometry of the recess for lubrication has the greatest effect on the intensity of plastic deformations. Its maximum level is lowered by almost ~60% when spherical notches are used for lubrication instead of grooves. The friction coefficient of the polymer has a great influence on the contact tangential stress. At the experimental coefficient of friction, it is lowered on average by ~85%. The friction coefficient of the lubricant has almost no effect on the deformation of the cell (<1%).

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Analysis of deformation behavior of the anti-friction layer part with a spherical recess for lubricant

Cited by 2 publications

References 12 publications

Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

Influence Analysis of the Antifriction Layer Materials and Thickness on the Contact Interaction of Spherical Bearings Elements

The Geometric Configuration of Lubricant Recesses of the Polymer Sliding Layer of the Bearing

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