Model of oil flow in long journal bearing in field of centrifugal forces

Abstract

Mathematical model of long journal bearing with incompressible oil flow in field of centrifugal inertia forces acting in lubrication layer of planet wheel journal bearing is developed. Modification of Reynolds equation based on Navier-Stokes equations is received, taking into account centrifugal forces’ impact on fluid film in oil gap of journal bearing. Model was verified by commercial software, which uses full Navier-Stokes equations. Results of verification shows considerable contribution of centrifugal inertia forces on total pressure distribution in journal bearing, carrying force and attitude angle.

Keywords

Reynolds equation / centrifugal forces / planetary gear

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RIGHTS & PERMISSIONS

Temis M.J., Lazarev A.P.