Detail publikace

A comparison of measured film thicknesses with quantitative predictions from an elastohydrodynamic, perturbation analysis at high slide-roll ratios

HOOKE, CH., ŠPERKA, P., BAIR, S., MORALES-ESPEJEL, G.E.

Originální název

A comparison of measured film thicknesses with quantitative predictions from an elastohydrodynamic, perturbation analysis at high slide-roll ratios

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The behaviour of elastohydrodynamic contacts at high slide-roll ratios (SRR) differs markedly from that found in rolling conjunctions and at low SRRs. Behaviour is dominated by viscosity reduction due to shear-thinning and by temperature rises in the fluid and mating surfaces. These have a major influence on both the performance of smooth contacts and the behaviour of rough surfaces. This paper presents a set of experimental results for these conditions where artificial roughness in the form of transverse ridges is present. These are then compared to the results of a perturbation analysis to see whether this rapid analysis technique can adequately predict the behaviour. It is shown that very powerful feedback mechanisms exist in both the thermal and shear thinning and that these make the behaviour of surface roughness relatively insensitive to changes in fluid properties. In contrast to most previous work, real temperature, pressure and shear dependences of viscosity as measured in viscometers have been employed.

Klíčová slova

Thermal EHL; shear thinning; surface roughness; perturbation analysis

Autoři

HOOKE, CH., ŠPERKA, P., BAIR, S., MORALES-ESPEJEL, G.E.

Vydáno

1. 4. 2021

Nakladatel

SAGE PUBLICATIONS LTD

Místo

LONDON

ISSN

1350-6501

Periodikum

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY

Ročník

235

Číslo

4

Stát

Spojené království Velké Británie a Severního Irska

Strany od

870

Strany do

880

Strany počet

11

URL

https://journals.sagepub.com/doi/abs/10.1177/1350650120947285

BibTex

@article{BUT169792,
  author="Petr {Šperka}",
  title="A comparison of measured film thicknesses with quantitative predictions from an elastohydrodynamic, perturbation analysis at high slide-roll ratios",
  journal="PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY",
  year="2021",
  volume="235",
  number="4",
  pages="870--880",
  doi="10.1177/1350650120947285",
  issn="1350-6501",
  url="https://journals.sagepub.com/doi/abs/10.1177/1350650120947285"
}