Abstract:Based on the improved uniform Reynolds equation,the numerical simulation of the mixed lubrication of point contact was carried out to study the effects of oil supply,load and suction rate on the lubrication performance.The lubrication area was divided into two parts,the gap was completely filled with lubricating oil in the pressure zone,and the gap was partially filled with lubricating oil in the cavity area.The lubrication characteriscs in two regions were solved by the discretized Reynolds equation.The elastic deformation was solved by fast Fourier transform algorithm,and the pressure was solved by GaussSeidal lower relaxation iteration with progressive scanning method.The results show that with the initial oil supply changing,the oil film pressure and thickness and the fractional film content will be affected.For the the mixed lubrication of point contact under starvation condition,the oil film thickness distribution is mainly influenced by the speed,the pressure distribution is mainly influenced by the load.As the load increases,the oil film pressure is increased,and the oil film thickness is slightly decreased.As the speed increases,the oil film thickness is decreased.
