Modal Analysis of Helical Gear Train using Ansys

Abstract

Helical gear is one of the parts of a machine which undergoes mechanical operation with some loading condition acting upon it. Helical gear deals with high contact and friction which reduces the slippage compared to spur gears. The load may cause damage to the gears generally to the tooth surface and breakage of gear tooth and other damages to the gear that may include deterioration of plastic material and the rim or web breakages. When the gears are used in assemblies are named as gear train. The leading factor of gear failures are the stress and surface strength of a gear tooth. So, it has been interesting in the research area to minimise the stress acted on the gear and optimal design of gear. In this paper the design of gear train at specific parameter is done in Solidworks and the aluminium alloy material is considered. The further analysis is done in ansys 18.0 where some loading condition is applied for the analysis. Two types of analysis is done to the simulation which is vibration and stress analysis. It is 500 N-m of moment is applied at gear train and the stress in the tooth and shafts are determined that whether the result analysis obtained is within the yield tensile limit of the used material.