Paouris_TriboUK2015.pdf (57.61 kB)
Isothermal elastohydrodynamic lubrication analysis of heavily loaded hypoid gear pairs
conference contribution
posted on 2015-06-08, 08:14 authored by Leonidas Paouris, Stephanos TheodossiadesStephanos Theodossiades, Miguel De la Cruz, Homer Rahnejat, Adam Kidson, Gregory Hunt, William BartonA numerical model able to predict the pressure
distribution and the film thickness in heavily loaded
elliptical EHL contacts is developed and presented in
this study. The operating conditions, such as the contact
load and the velocities of the mating surfaces, are
representative of the corresponding conditions present
in automotive differential hypoid gear pair units. The
EHL solver presented is able to predict the minimum
and central film thickness of the lubricating oil as well
as the pressure distribution assuming isothermal and
Newtonian conditions. Results are presented for a full
quasi-static meshing cycle. A comparison between the
numerically calculated values of the central and the
minimum film thickness is performed against the
corresponding values produced using the
Chittenden-Dowson formula. A very good agreement is
observed between the values of the central film
thickness. However, it is shown that the minimum film
thickness values using the Chittenden-Dowson formula
can deviate up to 40% compared with the corresponding
values which are calculated numerically.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
TriboUK 2015Citation
PAOURIS, L.I. ... et al, 2015. Isothermal elastohydrodynamic lubrication analysis of heavily loaded hypoid gear pairs. TriboUK 2015, Loughborough University, 16th-17th April 2015.Publisher
Loughborough UniversityVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2015Notes
This is a conference paper.Language
- en