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A unified analytical model to calculate no-load power losses for the coexistence of windage-churning phenomenon for spiral bevel gears.

Authors :
Dai, Yu
Yang, Cai hua
Zhang, Ru
Zhu, Xiang
Source :
European Physical Journal Plus; Mar2024, Vol. 139 Issue 3, p1-16, 16p
Publication Year :
2024

Abstract

Gear churning behavior commonly actively or passively appears in high-speed machinal transmissions of helicopters and new energy electric vehicles. In these high-speed scenarios of churning and windage behaviors coexist the corresponding energy, dissipations of spiral bevel gears are no longer accurately predicted by the classic churning loss model, as well as the proposed windage loss model. Considering that these two phenomena are influenced by the fluid properties, gear geometry, and working condition parameters, this paper tries to develop a unified analytical model to calculate gear no-load power losses for this special scenario between a typical churning and windage phenomenon for a spiral bevel gear, leveraging with the air–oil ratio relations. A series of experimental data on a single rotating part in an oil sump at numerous rotational speeds and initial static oil levels have been performed. On top of that, the unified analytical model is verified and improved. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21905444
Volume :
139
Issue :
3
Database :
Complementary Index
Journal :
European Physical Journal Plus
Publication Type :
Academic Journal
Accession number :
176626966
Full Text :
https://doi.org/10.1140/epjp/s13360-024-05055-9