Tooth Profile Optimization of Helical Gear with Balanced Specific Sliding Using TLBO Algorithm

  • Paridhi Rai
  • Asim Gopal BarmanEmail author
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 949)


Meshing performance of helical gears is affected by the sliding coefficients. In this paper, addendum modification is used to maximize the specific sliding coefficients of gears. Interference, undercutting, and strength of gears act as the design constraints for the design problem formulated. TLBO is used to perform design optimization of helical gears. The results achieved are compared with the results found in literature. It has been found that there is a significant improvement in the value of specific sliding. This will not only increase the wear resistance of the gear pair but also increase the service life and meshing performance of gears.


Specific sliding Profile shift Helical gears Teaching–learning based optimization 



Sliding velocity


Maximum sliding velocity


Tip transverse pressure angle


Transverse pressure angle


Transmission ratio


Transverse contact ratio


Transverse module


Addendum modification coefficient


Base radius


Tranverse arc tooth thickness


Nominal bending stress


Allowable bending stress


Nominal contact stress


Allowable contact stress


Number of pinion teeth


Number of gear teeth


Minimum number of teeth to avoid undercut


Working center distance


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNational Institute of Technology PatnaPatnaIndia

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