An Investigation of Load-independent Power Losses of Gear Systems

Abstract

Model Formulation....... 2.1 Introduction.......2.2 Gear Pair Oil Churning Power Loss Model...... 2.3 Drag Power Losses....... ... 2.3.1 Power Loss due to Drag on the Periphery of a Gear..... 2.3.2Power Loss due to Drag on the Faces of a Gear... 2.3.2.1 Laminar Flow Conditions...2.3.2.2 Turbulent Flow Conditions. 2.4 Power Loss due to Root Filling....2.5 Oil Pocketing Power Loss. 2.5.1 Backlash Flow Area...... 2.5.2End Flow Area.. 2.5.2.1 Calculation of Area 2 c Q .2.5.2.2 Calculation of Area ( ) ,1 m t j Q ...2.5.2.3 Calculation of Area ( ) ,1 m b j Q ...