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Modeling and Finite Element Analysis of Spur Gear

Author : Vivek Karaveer, Ashish Mogrekar and T. Preman Reynold Joseph

Pages : 2104-2107
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The contact stress in the mating gears is the key parameter in gear design. This paper presents the stress analysis of mating teeth of spur gear to find maximum contact stress in the gear teeth. The results obtained from Finite Element Analysis (FEA) are compared with theoretical Hertzian equation values. For the analysis, steel and grey cast iron are used as the materials of spur gear. The spur gears are sketched, modeled and assembled in ANSYS DesignModeler. As Finite Element Method (FEM) is the easy and accurate technique for stress analysis, FEA is done in finite element software ANSYS 14.5. Also deformation for steel and grey cast iron is obtained as efficiency of the gear depends on its deformation. The results show that the difference between maximum contact stresses obtained from Hertz equation and Finite Element Analysis is very less and it is acceptable. The deformation patterns of steel and grey cast iron gears depict that the difference in their deformation is negligible.

Keywords: ANSYS, Contact Stress, Finite Element Analysis, Spur Gear.

Article published in International Journal of Current  Engineering  and Technology, Vol.3,No.5(Dec- 2013)






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