Contact Stress and Harmonic Analysis of Spur Gear for Different Materials

Gears are main component in the mechanical field, these gears are played major roll to transmit the power. In the gears contact stress is main parameter, the contact stress is dependent on complexity of the model and material properties, as the material property changes the contact stress will also change. The modal analysis and harmonic response is required for analysis of gear systems. The aim of this project is to determine the contact stress and frequency response of gear for various materials. Here the model is designed in SolidWorks then imported to ANSYS software and determine the contact stress of mating gears for different materials. The modal analysis is carried out to know the mode shapes & natural frequency, and the harmonic analysis is also done for different materials like Structural steel, Cast iron and Aluminium. And this contact stress result is validating with theoretical results using Hertz equation.