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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)

Abstract

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.

Keywords

Specific sliding Profile shift Helical gears Teaching–learning based optimization 

Nomenclature

vs

Sliding velocity

μmax

Maximum sliding velocity

αat

Tip transverse pressure angle

αt

Transverse pressure angle

i

Transmission ratio

εα

Transverse contact ratio

mt

Transverse module

\(h_{\text{an}}\)

Addendum modification coefficient

rb

Base radius

Sat

Tranverse arc tooth thickness

σFcal

Nominal bending stress

sFall

Allowable bending stress

σHcal

Nominal contact stress

σHall

Allowable contact stress

z1

Number of pinion teeth

z2

Number of gear teeth

\(z^{\prime}\)

Minimum number of teeth to avoid undercut

C

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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