Optimization of Bending Stress of Spur Gear Using Response Surface Optimization Technique

Mechanical Engineering

This work deals with the reduction of bending stresses of the involute spur gear and pinion by introducing stress relieving feature of shapes i.e. elliptical hole. In this work the stress analysis of mating gears of the spur gear with five different modules is done to determine the bending stresses generated in the gear teeth. In the previous paper the results obtained from Finite Element Analysis (FEA) using Ansys are compared with the values obtained from response optimization tool. The materials of spur gear used for analysis are grade 1 steel. In this work, the stresses which were calculated has been reduced by introducing stress relieving feature of elliptical shapes in most stressed area. It was found that Stress relieving feature having the shape of elliptical yielded better results when compared to normal or without hole. In this Analysis the multi objective genetic algorithm has been taken and optimum shape parameter are proposed, which useful to give minimum bending stress and maximum life cycle of fatigue life as compare to existing work.

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