Mixed elastohydrodynamic lubrication model for finite roller-coated half space interfaces

Tao He, Dong Zhu*, Chengjiao Yu, Q Jane Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

This paper presents a mixed elastohydrodynamic lubrication (EHL) model for finite roller-coated half space interfaces. The model is built with the unified mixed lubrication approach and the influence coefficients (ICs) relating the pressure on a contact surface to surface deformations and subsurface stresses, converted from the frequency response functions (FRFs). The elastic deformation is solved with the discrete convolution and fast Fourier transform (DC-FFT) algorithm. This model is used to explore the EHL performance of rollers subjected to a wide range of operating conditions. A parameters study is conducted to reveal the effects of coatings, macro geometry, and surface roughness on the lubrication of rollers.

Original languageEnglish (US)
Pages (from-to)178-189
Number of pages12
JournalTribology International
DOIs
StatePublished - Jun 1 2019

Keywords

  • Coating
  • Elastohydrodynamic lubrication (EHL)
  • Finite roller
  • Mixed lubrication

ASJC Scopus subject areas

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

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