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Stochastic uncertain lubrication in gear transmission subjected to tribodynamic loading.

Authors :
Chen, Zhou
Sha, Haiming
Li, Sheng
Tong, Zheming
Tong, Shuiguang
Source :
Friction (2223-7704); Aug2024, Vol. 12 Issue 8, p1741-1756, 16p
Publication Year :
2024

Abstract

A stochastic uncertain tribodynamic model is established for a spur gear pair for the first time. The stochastic uncertainty of pinion rotation speed propagated to lubrication performance is investigated. The probability density function of the minimum lubricant film thickness h<subscript>min</subscript> evolves over time periodically at interval of an engagement process. Correspondence between abrupt increase in meshing force and amplification of h<subscript>min</subscript> uncertainty is found. Robust and reliable lubrication performance can be achieved by suppressing the h<subscript>min</subscript> uncertainty and decreasing the lubrication failure probability. This can be done by increasing lubricant viscosity, and decreasing input torque and uncertainty level of input rotation speed. This work lays a solid foundation for robust and reliability based optimization for tribodynamic gear system. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
22237704
Volume :
12
Issue :
8
Database :
Complementary Index
Journal :
Friction (2223-7704)
Publication Type :
Academic Journal
Accession number :
178417099
Full Text :
https://doi.org/10.1007/s40544-023-0843-6