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Numerical multilevel investigation for the evaluation of pressure distribution in ehl circular contacts from film thickness measurements
Author(s) -
Bassani R.,
Ciulli E.,
Piccigallo B.,
Squarcini R.
Publication year - 2005
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010170302
Subject(s) - lubrication , multigrid method , interferometry , materials science , lubricant , optics , distribution (mathematics) , numerical analysis , code (set theory) , mechanics , computer science , acoustics , mathematics , physics , composite material , mathematical analysis , set (abstract data type) , partial differential equation , programming language
An analysis of circular contacts under elastohydrodynamic lubrication using a hybrid technique is presented. In particular, attention has been focused on the pressure distribution calculation. A versatile code has been developed to evaluate the pressure distribution starting from three‐dimensional film thickness maps obtained from the analysis of interferometric images. The code has been developed in C++ and is based on the multigrid technique. This hybrid technique has a basic advantage over the full numerical approach in that the pressure is obtained without making any assumptions about the lubricant itself. The main drawback of the method is that high‐resolution interferometric images are required.