The widely-used method for solving the point-contact EHL
problem is relaxation method which is also utilized in this study.
In fact, Successive Over-relaxation Method (S.O.R) is used to solve
the discretized Reynolds equation in an inner loop, while the
hydrodynamic and asperity pressures are updated by an underrelaxation
factor (starts from 0.01 and decreases gradually
throughout the process) in an outer loop. The other unknown
parameter H00 is also under-relaxed by the load balance in the
outer loop as well. Appendix B shows a flowchart of the numerical
procedure.