Restricted accessResearch articleFirst published online 2006-6
Rapid Calculation of the Pressures and Clearances in Rough,Elastohydrodynamically Lubricated Contacts Under Pure Rolling. Part 1: Low Amplitude,Sinusoidal Roughness
Modern elastohydrodynamically lubricated (EHL) solvers allow the calculation of the pressures and clearances in rough EHL contacts. However, the process is time consuming and the results give little insight into the physical behaviour of the system. The length of calculation also makes these methods unsuitable for use as a design tool. The investigation of the behaviour of low amplitude, sinusoidal roughness in EHL contacts provides greater understanding of the processes involved. The results also allow the effects of surface roughness to be examined rapidly. This suggests that it may be possible to develop the approach and create a ‘real-time’ design process for the analysis of different surface roughnesses under a range of operating conditions.
VennerC. H.Multi-level solution of the elastohydro-dynamic line and point contact problems. Proefschrift, Universiteit Twente, The Netherlands, 1991.
2.
VennerC. H.LubrechtA. A.Multi-level methods in lubrication, 2000 (Elsevier, Amsterdam).
3.
VennerC. H.LubrechtA. A.Numerical analysis of the influence of waviness on the film thickness of a circular EHL contact. Trans. ASME. J. Tribol., 1995, 118, 153–161.
4.
VennerC. H.CouhierF.LubrechtA. A.GreenwoodJ. A.Amplitude reduction of waviness in transient EHL line contacts. Proceedings of 22nd Leeds-Lyon Symposium on Tribology, Elsevier Tribology Series 32, 1996, Amsterdam, pp. 103–112.
5.
VennerC. H.LubrechtA. A.Amplitude reduction of non-isotropic harmonic patterns in EHL circular contacts under pure rolling. Proceedings of 25th Leeds-Lyon Symposium on Tribology, Elsevier Tribology Series 36, 1999, Amsterdam, pp. 151–162.
6.
HookeC. J.Surface roughness modification in EHL line contacts - the effect of roughness wavelength, orientation and operating conditions. Proceedings of 25th Leeds-Lyon Symposium on Tribology, Lyon, September 1998.
7.
HookeC. J.The behaviour of heavily loaded line contacts with transverse roughness. Proc. Instn Mech. Engrs, Part C: J. Mechanical Engineering Science, 1999, 213, 309–320.
8.
HookeC. J.The behaviour of low amplitude surface roughness under line contacts. Proc. Instn Mech. Engrs, Part J:J. Engineering Tribology, 1999, 213, 275–286.
9.
HookeC. J.The behaviour of low amplitude surface roughness under line contacts: Non-Newtonian fluids. Proc. Instn Mech. Engrs, Part C: J. Mechanical Engineering Science, 2000, 214, 253–265.
10.
HookeC. J.VennerC. H.Surface roughness attenuation in line and point contacts. Proc. Instn Mech. Engrs, Part J: J. Engineering Tribology, 2000, 214, 439–444.
11.
HookeC. J.Roughness attenuation and pressure rippling in EHL contacts. Proceedings of IUTAM Conference on Elastohydrodynamics and microelasto-hydrodynamics, Cardiff, September 2004.
12.
HookeC. J.The effects of roughness in EHL contacts. Proceedings of the 31st Leeds-Lyon Symposium on Tribology, Lyon, September 2004, 2005, pp. 31–64 (Elsevier, Amsterdam).
13.
JohnsonK. L.Contact mechanics, 1985 (Cambridge University Press, Cambridge).
14.
RoelandsC.Correlational aspects of the viscosity-temperature-pressure relationship of lubrication oils. PhD Thesis, Technische Hogeschool Delft, The Netherlands, 1966.
DowsonD.HigginsonG. R.WhitakerA. V.Elasto-hydrodynamic lubrication - a survey of isothermal solutions. J. Mech. Eng. Sci., 1962, 4, 121–126.
17.
TaoJ.HughesT. G.EvansH. P.SnidleR. W.Elastohydrodynamic response of transverse ground gear teeth. Proceedings of 28th Leeds-Lyon Symposium on Tribology, September 2001, 2002, pp. 447–458 (Elsevier, Amsterdam).
18.
HookeC. J.LiK. Y.Rapid calculation of the pressures and clearances in rough, elastohydrodynamically lubricated contacts under pure rolling. Part 2: General roughness. Proc. IMechE. Part C: J. Mechanical Engineering Science, 2006, 220(C6), 915–925.
