A mixed EHL model with asymmetric integrated control volume discretization

A transient, non-Newtonian, mixed elastohydrodynamic lubrication model is proposed for heavily loaded point contacts of rough surfaces. An asymmetric integrated control volume (AICV) scheme is used to achieve faster solutions with reduced discretization errors. A unified approach is adapted to handle asperity contacts and the fast Fourier transforms are used to compute elastic deformation. Model predictions with the AICV scheme are compared with a conventional discretization scheme to demonstrate its benefits. Accuracy of this model is verified through comparisons to published experiments. An example contact is analyzed under varying conditions to demonstrate the capabilities of this model.