Tribodynamics of Spiral Bevel Gears under Mixed Elastohydrodynamic Lubrication

Document Type

Conference Proceeding

Publication Date

5-8-2023

Abstract

Spiral bevel gears are commonly used in heavy-duty trucks and buses. An integrated dynamic model of the spiral bevel gears with mixed elastohydrodynamic lubrication is proposed in this study. First, loaded tooth contact analysis was performed to evaluate the kinematic parameters and calculate the mesh force variation for one mesh cycle. These kinematic quantities are used in the mixed elastohydrodynamic lubrication (EHL) calculation to determine the EHL parameters such as pressure, film thickness, and shear distribution considering the surface roughness profile of the spiral bevel gears. Then, the EHL pressure and film thickness are used in the calculation of the coefficient of friction, damping, and oil film elastohydrodynamic lubrication stiffness. Last, these tribological parameters are used in the dynamic calculation of the spiral bevel gears. The calculated tribodynamic response of the spiral bevel gears are compared for different dynamic models and the influence of lubrication on the gear dynamic responses is discussed.

Identifier

85160685622 (Scopus)

Publication Title

SAE Technical Papers

External Full Text Location

https://doi.org/10.4271/2023-01-1134

e-ISSN

01487191

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