Effect of Load Variation on Elastohydrodynamic Lubrication Film Collapse

Tapash Jyoti Kalita; Punit Kumar

doi:10.4028/www.scientific.net/AMM.592-594.1366

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 592-594Effect of Load Variation on Elastohydrodynamic...

Effect of Load Variation on Elastohydrodynamic Lubrication Film Collapse

Abstract:

Elastohydrodynamic line contact simulations have been carried out in the present study. A practical situation of transient EHL film collapse has been analyzed. The aim is to observe the effect of variation of maximum Hertzian pressure (P_H) on transient behavior of EHL film thickness (H).The analysis is based upon classical Reynolds equation considering time variation. The simulation results pertaining to EHL film thickness calculated using linear pressure-viscosity relationship have been compared for different values of load. It has been observed that film thickness reduces with increase in load. Similar results are obtained using exponential pressure-viscosity relationship and compared with those for linear pressure-viscosity. The EHL equations are solved by discretizing Reynolds equation and load equilibrium equation along with other equations using Newton-Raphson technique with the help of a computer code.

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Periodical:

Applied Mechanics and Materials (Volumes 592-594)

Pages:

1366-1370

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.592-594.1366

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Online since:

July 2014

Authors:

Tapash Jyoti Kalita*, Punit Kumar

Keywords:

EHL, Film Thickness, Line Contact

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