Abstract
PurposeThe purpose of this study is to propose a new method to solve transient elasto-hydrodynamic lubrication (EHL) problem.Design/methodology/approachFirst, the steady-state EHL solution is modified so that the elastic deformation theory is combined with oil film stiffness distribution instead of steady-state Reynolds equation. Second, subsequent dynamic EHL procedure develops, recursively using transient distributed oil film stiffness and damping, where each time-marching solution is iteratively searched by ensuring both oil film force growth and elastic deformation update for each load increment.FindingsThis method increases calculation speed and provides both distributed EHL stiffness and damping for transient regimes.Originality/valueThis method is of interest for fast applications such as rolling bearings or gears.
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