Abstract

Abstract: Gearis one of the most commonly used component in power transmission between twoparallel shafts, they are widely used in mechanical power transmission. Engineeringcomponents made of composite materials have find increasing applicationsranging from space craft to small instruments. Portal axle is gearbox designedto increase the ground clearance of the vehicle for off-road drivingconditions. The higher ground clearance depends on the arrangement of geartrain of the portal axle. The gear train and shafts are the most critical partin the portal axle as they transmit and withstand very high loads. They shouldbe designed to withstand overloading and lightweight for greater durability andperformance of the portal axle. The Design and Structural Analaysis of helicalgears in portal axle is important to predict the actual motion behavior.However, gear train design in portal axle is difficult to study comprehensivelydue to their relatively low cost and short product life cycle. The mainobjective of this project is design and analysis of portal axle for ScorpioS2(SUV) having helical gear train with two idler gear. In this study, 3D Modelis created in catia software and Structural analysis of portal axle issimulated using  finite element method(FEM) with four different materials Structural steel, Grey cast iron,15Ni5Cr4Mo1, Aluminum alloy Finally observe the Von-misses stresses and Totaldeformation and conclude the which material is the suitable for the Axle portalgears .

Keywords:Portal axle, Gear train, Helical gear,FEM, Catia, Ansys