Contact Stress Design and Optimization of Spur Gear

Gear drive is one of the most important components in mechanical power transmission systems. The pitting resistance of gear teeth is considered to be one of the main causes of gear failure to good lubricating gears. This article presents the results of optimization design of the spur gear pairs by contact stress with the 3D gears model designed in CAD software, and then imported in CAE software for topology,  shape optimization and 3D printing. To be more specific, the amount of material which can be removed from the gear body without compromising the gear meshing properties is considered and calculated. Consequently, the aim of this research is to reduce weight of the gears and choose the optimal parameters of gear pair