A nonlinear finite element contact mechanics model of a helical gear pair was used to study the effect of intentional tooth profile modifications on durability of helical gear pairs. Both two-dimensional (2D) and three-dimensional (3D) modifications were considered. A detailed parametric study was performed to quantify the changes in the contact and bending stresses as a function of tooth profile modification parameters as compared to an unmodified gear pair baseline. The combined influence of modification parameters and torque transmitted on the maximum stresses is described. Results indicate that both bending and contact stresses of a helical gear pair are increased significantly when 2D modifications are applied, potentially causing an underestimation of the actual stress values when the modifications are not included in stress calculations. When properly selected, 3D modifications cause significantly less stress increases.
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September 2002
Technical Papers
Influence of Tooth Profile Modification on Helical Gear Durability
Parag Wagaj, Research Assistant,
Parag Wagaj, Research Assistant
Center for Gear Research, The University of Toledo, Nitschke Hall 4045, Toledo, OH 43606
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Ahmet Kahraman, Associate Professor and Director
Ahmet Kahraman, Associate Professor and Director
Center for Gear Research, The University of Toledo, Nitschke Hall 4045, Toledo, OH 43606
Search for other works by this author on:
Parag Wagaj, Research Assistant
Center for Gear Research, The University of Toledo, Nitschke Hall 4045, Toledo, OH 43606
Ahmet Kahraman, Associate Professor and Director
Center for Gear Research, The University of Toledo, Nitschke Hall 4045, Toledo, OH 43606
Contributed by the Power Transmission and Gearing Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received April 2001. Associate Editor: R. F. Handschuh.
J. Mech. Des. Sep 2002, 124(3): 501-510 (10 pages)
Published Online: August 6, 2002
Article history
Received:
April 1, 2001
Online:
August 6, 2002
Citation
Wagaj, P., and Kahraman, A. (August 6, 2002). "Influence of Tooth Profile Modification on Helical Gear Durability ." ASME. J. Mech. Des. September 2002; 124(3): 501–510. https://doi.org/10.1115/1.1485289
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