In this study, the effect of oil starvation on isothermal elastohydrodynamic lubrication of an impact motion is explored with the aid of numerical techniques. During the impact process, on comparison with the fully lubricated results, the pressure and film thickness are much lower and the entrapped film shape does not happen. The rebound is delayed by the oil starvation assumption. During the rebound process, a periphery entrapment is seen in the starved film thickness distribution. Under the starved condition, the maximum pressure gradient is higher. The central film thickness and minimum film thickness exhibit different variations compared with the results by fully flooded assumption.
ConwayHDLeeHC. Impact of a lubricated surface by a sphere. J Lubr Technol1975; 97: 613–615.
2.
LarssonRHöglundE. Numerical simulation of a ball impacting and rebounding a lubricated surface. ASME J Tribol1995; 117: 94–102.
3.
YangFConryTFet al.Squeezing flow of an Eyring fluid. J Tribol1997; 119: 593–596.
4.
KanetaMGuoFWangJ. Impact micro-elastohynamics in point contacts. ASME J Tribol2011; 133: 1–9.
5.
WangJVennerCHLubrechtAA. Central film thickness prediction for line contacts under pure impact. Tribol Int2013; 66: 203–207.
6.
WangJWangNYangPet al.A theoretical simulation of thermal elastohydrodynamic lubrication for a Newtonian fluid in impact motion. Tribol Int2013; 67: 116–123.
7.
LarssonRLundbergJ. Study of lubricated impact using optical interferometry. Wear1995; 190: 184–189.
8.
Sakamoto M, Nishikawa H and Kaneta M. Behaviour of point contact EHL films under pulsating loads. Lyon(FR), 2003.
9.
ChevallierFLubrechtAAet al.Film thickness in starved EHL point contacts. J Tribol1998; 120: 126–133.
10.
ElrodHG. A cavitation algorithm. ASME J Tribol1981; 103: 350–354.
YangPWangJKanetaM. Thermal and non-Newtonian numerical analyses for starved EHL line contacts. J Tribol2006; 128: 282–290.
14.
Roeland CJA. Correlation aspect of the viscosity–temperature–pressure relation of lubrication oils. PhD Thesis, Delft University of Technology, Netherlands, 1966.
