Combined effect of surface microgeometry and adhesion in normal and sliding contacts of elastic bodies

Goryacheva, I. G.; Makhovskaya, Yu. Yu.

doi:10.1007/s40544-017-0179-1

Cited by 25 publications

(2 citation statements)

References 53 publications

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“…As the boundary condition, the temperature of each pair of contact points must be equal over the real contact area for the slipper pair with the contact friction between the profile peaks. However, outside the real contact area, the surface temperature is not necessarily equal [15]. The boundary condition is expressed as follows:…”

Section: Establishment Of Thermo-mechanical Coupling Calculation Modementioning

confidence: 99%

Study on friction performance and mechanism of slipper pair under different paired materials in high-pressure axial piston pump

Zhao

et al. 2019

Friction

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High-pressure axial piston pumps operate in high-speed and high-pressure environments. The contact state of the slipper against the swashplate can easily change from an oil film lubrication to a mixed oil film/asperity contact, or even dry friction. To improve the dry friction performance of slipper pairs and to avoid their potentially rapid failure, this study examined the effects of material matching on the dry friction performance of the slipper pair for high-pressure axial piston pumps. A FAIAX6 friction and wear tester was developed, and the dry friction coefficients of the slipper pairs matched with different materials were studied using this tester. Based on the thermo-mechanical coupling of the slipper pair with the working process, the contact surface temperatures of the slipper pairs matched with different materials were calculated and analyzed for the same working conditions. Following this, the effects of the material properties on the temperature increase at the slipper sliding contact surfaces were revealed. The reliabilities of the temperature calculations and analysis results were verified through orthogonal tests of slipper pairs matched with different materials. The results indicate that the influence of the material density on the friction coefficient is greater than that of the Poisson's ratio or the elastic modulus, and that the slipper material chosen should have a high thermal conductivity, low density, and low specific heat, whereas the swashplate material should be high in specific heat, density, and thermal conductivity; in addition, the slipper pair should be a type of hard material to match the type of soft material applied; that is, the hardness of the swashplate material should be greater than that of the slipper material.

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Section: Establishment Of Thermo-mechanical Coupling Calculation Modementioning

confidence: 99%

Study on friction performance and mechanism of slipper pair under different paired materials in high-pressure axial piston pump

Zhao

et al. 2019

Friction

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show abstract

“…Miniaturization of the friction contact models needs a transfer from the volume properties of the materials to their surface features [48]. In general, micro-and nanotribology requires new principal approaches [50][51][52].…”

Section: High-performance Ud Polymer Compositesmentioning

confidence: 99%

Friction mechanism of polymers and their composites

Bogoeva‐Gaceva

Dimeski

Srebrenkoska

2018

Maced. J. Chem. Chem. Eng.

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This paper provides a brief review of the tribological properties of polymers and polymer matrix composites (PMCs) and the relevant mechanisms of friction and wear. The influence of both molecular and mechanical components on friction involving polymers as well as the influence of fillers, reinforcements and dry lubricants on the overall tribological characteristics of PMCs is evaluated. Tribological parameters include surface roughness, the mechanism of adhesion, friction and wear, and chemical interactions with dry lubricants (if present). The article reviews the main factors that influence the wear and frictional characteristics of thermoplastic and thermosetting polymers, short fiber reinforced composites and high-performance unidirectional composites. Examples of quantitative data of different pairs of polymers and PMCs with the counterface are presented.

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Problems in Friction Analysis

Мышкин

Grigoriev

2019

Advances in Mechanism and Machine Science

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Combined effect of surface microgeometry and adhesion in normal and sliding contacts of elastic bodies

Cited by 25 publications

References 53 publications

Study on friction performance and mechanism of slipper pair under different paired materials in high-pressure axial piston pump

Study on friction performance and mechanism of slipper pair under different paired materials in high-pressure axial piston pump

Friction mechanism of polymers and their composites

Problems in Friction Analysis

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