On the Theory of Thermal Elastohydrodynamic Lubrication at High Slide-Roll Ratios—Circular Glass-Steel Contact Solution at Opposite Sliding

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  • Feng Guo
    Department of MEEM, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
  • Peiran Yang
    Department of Mechanical Engineering, Qingdao Institute of Architecture and Engineering, Qingdao, 266033, People’s Republic of China
  • Shiyue Qu
    Department of Mechanical Engineering, Qingdao Institute of Architecture and Engineering, Qingdao, 266033, People’s Republic of China

Abstract

<jats:p>A full numerical solution for the thermal EHL problem in circular contact formed by steel-glass conjunctions with slide-roll ratios larger than 2 has been carried out. An anomalous film profile, which is similar to that reported by Kaneta et al. (1996), has been obtained. The numerical results by the authors, involving three basic kinds of film profiles, the kinematic conditions for the formation of dimples, and the variations of dimples and traction behavior with operating conditions, have been carefully compared with the experiments by Kaneta et al., and provided a sound theoretical evidence of the dimple phenomena under steady-state conditions. The present study indicates that the temperature-viscosity-wedge effect seems to be an essential mechanism for the dimple phenomena.</jats:p>

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