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Comparison of Contact Stresses in Involute and Cycloidal Profile Spur Gear Tooth


Vivek Kumar Tiwari , Shri Shankracharya Group of Institution Bhilai ; Lokesh Kumar Sahu, SSGI Bhiali Chhattisgarh; Mahesh Dewangan, SSGI Bhiali Chhattisgarh


Finite Element Analysis, Hertz Theory for Contact Stress, Contact Fatigue Failure


This study investigates the comparison of contact stresses in involute and cycloidal profile spur gear tooth for different modules by means of Finite Element Analysis. The mathematical models of the gear pair has been generated based on the theory of gearing and the generation mechanism. Models are made in Creo parametric software tool and the analysis has been done in ANSYS Workbench. The contact stresses between the mating teeth corresponding to different modules for both involute and cycloidal profile spur gear teeth obtained from FEA are compared with that obtained by the basic Hertz theory for contact stress and it is observed that the FEA results are validating with the Hertz equation. Also, it is found that the contact stresses for involute pinion as well as involute gear are much lower than cycloidal pinion and gear. So, it is concluded that as the module increases, the contact stress for both the profile decreases and for the same module, involute profile spur gear is stronger than cycloidal profile spur gear in consideration of contact fatigue failure.

Other Details

Paper ID: IJSRDV5I50411
Published in: Volume : 5, Issue : 5
Publication Date: 01/08/2017
Page(s): 638-640

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