ABSTRACT Gearing is one of the most critical components in mechanical power transmission systems. This article examines the various stresses and deflection developed in sun gear tooth of planetary gearbox which is used in Grabbing Crane. Article includes checking sun gear wear stresses and bending stresses using IS 4460 equations. Also calculate various forces acting on gear tooth. In this study, perform the calculation for sun gear tooth to calculate bending, shear, wear & deflection using theoretical method. 3D model is created of circular root fillet & trochoidal root fillet of gear tooth for simulation using ProE Wildfire 3. In Pro-E, the geometry is saved as a file and then it is transferred from Pro-E to ANSYS 10 in IGES format. The results of the 3 D analyses from ANSYS are compared with the theoretical values. Comparison of ANSYS results in circular root fillet & trochoidal root fillet also carry out.
Cite this paper
nullY. Hamand and V. Kalamkar, "Analysis of Stresses and Deflection of Sun Gear by Theoretical and ANSYS Method," Modern Mechanical Engineering, Vol. 1 No. 2, 2011, pp. 56-68. doi: 10.4236/mme.2011.12008.
 S. Sankar, M. S. Raj and M. Nataraj, “Profile Modification for Increasing the Tooth Strength in Spur Gear Using CAD,” Journal of Mechanical Engineering Science, Vol. 2, No. 9, 2010, pp. 740-749.
 Y. A. Tesfahunegn and F. Rosa, “The Effects of the Shape of Tooth Profile Modification on the Transmission Error Bending and Contact Stress of Spur Gears,” Journal of Mechanical Engineering Science, Vol. 224, No. 8, 2010, pp. 1749-1758.
 C.-F. Tsai, T.-L. Liang and S.-C. Yang, “Mathematical Model of the Planetary Gear Mechanism with Double Circular-Arc Teeth,” Transactions of the CSME Ide la SCGM, Vol. 32, No. 2, 2008, pp. 267-282.
 R. Patchigolla and Y. P. Singh, “Finite Element Analysis of Large Spur Gear Tooth and Rim with and without Web Effects-Part I and II,” The 2006 ASEE Gulf-Southwest Annual Conference Southern University and A & M College.
 F. L. Litvin, A. Fuentes, D. Vecchiato and I. Gonzalez- Perez, “New Design and Improvement of Planetary Gear Trains,” NASA/CR—2004-213101, pp. 1-30.