Design and finite element analysis of AISI 4340 alloy steel helical gear

The present study aims at design, modeling, modal analysis, static analysis and harmonic analysis of helical gear of AISI 4340 material. The dimensions of helical gear are obtained through comprehensive theoretical design procedure. Three dimensional model of helical gear was created by three dimensional modeling software. Ansys workbench finite element tool was used for harmonic analysis, static structural analysis and modal analysis of designed helical gear. Helical gears are commonly used components in power transmission system. Helical gears play a vital role in transmitting motion and power. Gear teeth are usually subjected to root bending stresses and tooth contact stresses. Study of these stresses during designing helical gear is very important. Hence numerical analysis of AISI 4340 helical gear is done using numerical analysis software tool to check the designed gear met the application requirement or not. © 2022