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research-article

Nodal Unsteady Inverse EHL: Axisymmetric Normal Approach

[+] Author and Article Information
John F. Booker

Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853
booker@cornell.edu

Stephen Boedo

Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY 14623
sxbeme@rit.edu

1Corresponding author.

ASME doi:10.1115/1.4038985 History: Received May 21, 2017; Revised November 06, 2017

Abstract

An 'inverse' formulation is described for general problems of unsteady elastohydrodynamic lubrication (EHL). Spatial discretization gives an explicit initial-value ODE problem with (interior) nodal film thicknesses as state variables. Numerical results are compared with published experimental results for normal approach of a spherical surface to an elastic foundation.

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