Computational approaches for modelling elastohydrodynamic lubrication using multiphysics software

Elastohydrodynamic lubrication modelling plays an important role in engineering design and analysis, since a number of important mechanical components operate under elastohydrodynamic lubrication conditions. In this article, methods are presented for solving both line and point contact cases using multiphysics software. The advantages, and the overheads, of using such an approach over developing highly specialised, bespoke software are highlighted. In order to calculate the deformation of the contacts three different methods are developed and their relative performance is assessed. The advantage of using a nested solution strategy has also been examined. The flexibility of the multiphysics software approach is highlighted in results involving a complex transient case modelling an involute gear.