Numerical Analysis of Meshing of Loaded Misaligned Straight Bevel Gear Drives of Automobile Differential

Abstract

The main purpose of this paper is to analyze the influence of different types of alignment errors on the meshing performance of loaded straight bevel gears. Based on 3D finite element models of the specific loaded assembling straight bevel gear pair, the contact area, transmission error, vibration and noise for the specific loaded straight bevel gear are investigated. The results show that the alignment errors have different degrees of adverse effects on the contact area and the contact line of the straight bevel gear pair, which can affect the transmission error, vibration, and noise of the straight bevel gear drives. The results also demonstrate that the most dangerous type of combined alignment errors is ΔP, ΔG, ΔE 0 and Δγ. The results of this research can provide theoretical guidelines for the assembly and modification of straight bevel gears.

Keywords

• straight bevel gear
• finite element analysis
• alignment error
• transmission error
• vibration and noise