Nonlinear Dynamics of an Automotive Differential Hypoid Gear Pair

Abstract

The dynamics of an automotive differential hypoid gear pair is investigated. The gear pair model is a 4 degree-of-freedom torsional model, including the torsional deflections of the supporting shafts of the pinion and the gear. It also includes the dynamic transmission error of the mating teeth pairs. The variations in teeth contact stiffness/contact, principal radii of contact and static transmission error are determined during the meshing cycle, using the CALYX software. The equations of motion are solved using a numerical integration scheme. A preliminary parametric study is presented, enabling identification of different periodic responses as the vehicle cruising speed alters.

Thermal Analysis of an Oil Jet-Dry Sump Transmission Gear Under Mixed-Elastohydrodynamic Conditions

“…They investigated the effect of different gear teeth form modifications on power loss and system durability. Paouris et al [7] extended the work in [2] through inclusion of sub-surface stress analysis and included the prediction of orthogonal reversing shear stresses, which are often responsible for inelastic deformation of contacting surfaces through fatigue spalling [8].…”