An integrated tribodynamic model for investigation of efficiency, durability and NVH attributes of gear mesh in electric vehicle powertrains
An integrated gear tribodynamics model is proposed for the study of EV powertrains’ performance. The model considers the transient effects of lubrication regimes, non-Newtonian shear thinning, inlet shear heating, deformation states of asperities in mixed regime of lubrication and contact temperature using a set of analytical routines, which are computationally efficient. The proposed gear tribodynamics model provides a breakdown of the interdependency of these attributes and studies their impact on the performance of gear contacts. The results indicate that up to 30% of the contact load can be carried by asperities, of which 80% undergo elastoplastic deformation. In addition, the contribution of lubricant to contact stiffness can be greater than that of surface asperities by an order of magnitude.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Tribology InternationalVolume
189Publisher
ElsevierVersion
- VoR (Version of Record)
Rights holder
© The Author(s)Publisher statement
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Acceptance date
2023-09-23Publication date
2023-09-27Copyright date
2023ISSN
0301-679XeISSN
1879-2464Publisher version
Language
- en