Journal
TRIBOLOGY INTERNATIONAL
Volume 134, Issue -, Pages 328-334Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2019.02.013
Keywords
Traction lubricant; Molecular dynamics; Pressure viscosity coefficient
Categories
Funding
- Valvoline Inc
- Office of the Provost
- Office for Research
- Northwestern University Information Technology
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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 (alpha) of a number of base stocks in traction lubricants are calculated and the results are correlated with the corresponding traction coefficient tau. A linear alpha-tau correlation is obtained with a coefficient of determination of as high as 0.85.
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