Correlation between pressure-viscosity coefficient and traction coefficient of the base stocks in traction lubricants: A molecular dynamic approach

Jie Lu, Q Jane Wang*, Ning Ren, Frances E. Lockwood

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The lubricants for traction-continuously variable transmissions (t-CVT) could generate high traction under a high pressure, which requires the design of a special class of base stock molecules. This paper reports the development of a model, based on non-equilibrium molecular dynamics (NEMD) simulations, for estimating traction coefficients to facilitate the design of base stock molecules prior to their synthesis. The pressure-viscosity coefficients (α) of a number of base stocks in traction lubricants are calculated and the results are correlated with the corresponding traction coefficient τ. A linear α - τ correlation is obtained with a coefficient of determination of as high as 0.85.

Original languageEnglish (US)
Pages (from-to)328-334
Number of pages7
JournalTribology International
DOIs
StatePublished - Jun 1 2019

Keywords

  • Molecular dynamics
  • Pressure viscosity coefficient
  • Traction lubricant

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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